{
  "data": {
    "a": {
      "slug": "fish-audio-voice-cloning",
      "name": "Fish Audio Voice Cloning API",
      "vendor": "Fish Audio",
      "vendorUrl": "https://fish.audio",
      "kind": "model",
      "category": "voice-cloning",
      "summary": "Fish Audio's API and hosted MCP server create reusable voice clones from audio samples, and the API generates candidate voices from text prompts.",
      "url": "https://www.anchorterminal.com/tools/fish-audio-voice-cloning",
      "markdownUrl": "https://www.anchorterminal.com/tools/fish-audio-voice-cloning.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/fish-audio-voice-cloning.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/fish-audio-voice-cloning.json",
      "dns": "fish-audio-voice-cloning.grade.anchorterminal.com",
      "repo": "https://github.com/fishaudio/fish-audio-python",
      "license": "Apache-2.0 (Python SDK)",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.fish.audio",
      "packages": [
        {
          "registry": "pypi",
          "name": "fish-audio-sdk"
        },
        {
          "registry": "npm",
          "name": "fish-audio"
        }
      ],
      "auth": "api-key",
      "authNotes": "`Authorization: Bearer` API key. Voice design also needs a `model: voice-design-1` header. The hosted MCP server at `https://api.fish.audio/mcp` signs in by OAuth in the browser and is bound to one team (https://docs.fish.audio/overview/mcp).",
      "pricing": "usage",
      "pricingNotes": "Prepaid pay as you go with no subscription. No published fee for creating a voice model, and cloning on the MCP server is free. Speech from a clone costs $15 per million UTF-8 bytes on `s2.1-pro`, $50 on `drama-3` ($10 until 12 November 2026), or $0 on `s2.1-pro-free` under fair use, free through 30 November 2026 per the changelog. Voice design is $0.01 per successful request whatever the number of candidates. Concurrency rises with total prepaid spend. MCP usage draws on web app plan credits, not API credits. Separate app plans (Plus $11, Pro $75 a month, per the 30 September check) set voice slots in the web app (https://docs.fish.audio/developer-guide/models-pricing/pricing-and-rate-limits).",
      "priceSummary": "$0.01 / call",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 or machine payment in the docs, the OpenAPI file or the pricing page (checked 2026-10-23).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 218,
        "npmWeekly": 6392,
        "pypiWeekly": 37344,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.fish.audio/features/voice-cloning",
      "llmsTxt": "https://docs.fish.audio/llms.txt",
      "openapi": "https://docs.fish.audio/api-reference/openapi.json",
      "capabilities": [
        "voice.clone",
        "voice.design",
        "speech.tts"
      ],
      "tags": [
        "hosted",
        "usage-priced",
        "prepaid",
        "python",
        "typescript",
        "openapi",
        "llms-txt",
        "open-weights",
        "self-hosted",
        "mcp"
      ],
      "lastRelease": "2026-10-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 61.5,
        "grade": "C",
        "agentReady": false,
        "rank": 604,
        "ranked": true,
        "rankOf": 1486,
        "categoryRank": 5,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 73,
          "maintenance": 72,
          "payments": 30,
          "reliability": 75,
          "schema": 81,
          "security": 35,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-04"
        },
        "negative": 0,
        "verdict": "Usable clone from about 10 seconds of audio, available as soon as it's created, and an MCP server that asks the user to confirm rights before cloning. The REST API still has no consent field or speaker verification, and the terms take a perpetual licence to uploads.",
        "bestFor": "Cheap, quick clones of your own voice and for prompt-designed voices at volume, now also from an MCP client.",
        "strengths": [
          "Usable clone from about 10 seconds of audio, available as soon as it's created",
          "Inline cloning per request, with no model to store",
          "`GET /model` pages and filters to your own voices with `self=true`",
          "Voice design at $0.01 per successful request, failed requests not billed",
          "S1's retirement announced 84 days ahead with a migration guide and a fallback",
          "Open-weights S2-Pro for self-hosting under a research licence"
        ],
        "weaknesses": [
          "No consent or speaker verification on the REST API. The MCP server asks only for a rights confirmation",
          "Terms take a perpetual, irrevocable licence to uploads, including for training, with no opt-out",
          "Clones made through the MCP server are unlisted by default, usable by anyone with the ID",
          "npm SDK 0.1.0 (March 2026) still defaults to `s1`, deprecated on 8 October 2026",
          "No security.txt, SOC 2 or subprocessor list found"
        ],
        "agentNotes": [
          "Send 2 or 3 clean single-speaker clips with matching `texts`, or the API runs ASR on them",
          "Pass the model `_id` as `reference_id` in TTS. Check `state` before relying on it",
          "For one-off voices send `references` inline to `/v1/tts` instead of creating a model",
          "List only your own voices with `GET /model?self=true`",
          "Send the `model: voice-design-1` header on voice design calls",
          "On a 429, back off exponentially. There's no `Retry-After` header, and concurrency is 5 until prepaid spend reaches $100",
          "On the MCP server, ask for a private voice, since `create_voice_clone` makes clones unlisted by default"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 61.5
          }
        ],
        "editorialScores": {
          "ergonomics": 73,
          "maintenance": 72,
          "payments": 30,
          "reliability": 75,
          "schema": 81,
          "security": 35,
          "transparency": 44
        },
        "provenanceScore": 78,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-04",
            "maintenance": "2026-11-04",
            "payments": "2026-11-04",
            "reliability": "2026-11-04",
            "schema": "2026-11-04",
            "security": "2026-11-04",
            "transparency": "2026-11-04"
          },
          "last": "2026-11-04",
          "lastMoved": "2026-11-04",
          "oldest": "2026-11-04",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl -X POST https://api.fish.audio/model -H \"Authorization: Bearer $FISH_API_KEY\" \\\n  -F type=tts -F train_mode=fast -F title=\"Support voice\" -F voices=@sample.wav",
        "claudeCode": "claude mcp add --transport http fish-audio https://api.fish.audio/mcp",
        "config": {
          "mcpServers": {
            "fish-audio": {
              "url": "https://api.fish.audio/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/voice.clone",
        "tool": "https://letme.dev/fish-audio-voice-cloning"
      },
      "sameCompany": [
        "fish-audio-drama-3",
        "fish-audio-s2-pro",
        "fish-audio-tts"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "Speech from a clone, s2.1-pro",
          "unit": "1m-chars",
          "usd": 15,
          "note": "per million UTF-8 bytes, not characters"
        },
        {
          "item": "Speech from a clone, drama-3",
          "unit": "1m-chars",
          "usd": 50,
          "note": "per million UTF-8 bytes, $10 until 12 November 2026 09:00 PT"
        },
        {
          "item": "Speech from a clone, s2.1-pro-free",
          "unit": "1m-chars",
          "usd": 0,
          "note": "fair-use limits, free through 30 November 2026 per the changelog"
        },
        {
          "item": "Voice design, voice-design-1",
          "unit": "call",
          "usd": 0.01,
          "note": "per successful request, up to 4 candidates"
        }
      ],
      "provenance": {
        "legalEntity": "Hanabi AI Inc.",
        "domain": "fish.audio",
        "domainRegistered": "2023-12-11",
        "endpointOnVendorDomain": true,
        "terms": "https://fish.audio/terms/",
        "privacy": "https://fish.audio/privacy/",
        "statusPage": "https://status.fish.audio",
        "changelog": "https://docs.fish.audio/developer-guide/getting-started/changelog",
        "securityTxt": "none",
        "checked": "2026-11-04",
        "notes": [
          "The Terms of Use (effective 18 August 2024) name Hanabi AI Inc. as the provider of the Services, per the 23 October check.",
          "The Privacy Policy is dated 28 August 2024, per the 23 October check.",
          "https://fish.audio/.well-known/security.txt returned 404 on 2026-10-23.",
          "fish.audio's Terms of Use forbid crawling, so on 4 November nothing was requested from fish.audio or its subdomains (docs, status). Every reading from those hosts is per the 23 October check, not re-read."
        ],
        "score": 78
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/fish-audio-voice-cloning.json",
      "live": {
        "slug": "fish-audio-voice-cloning",
        "probe": {
          "target": "https://api.fish.audio",
          "method": "get",
          "lastAt": "2026-11-07T18:20:25.399787632Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 211,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 99.91,
          "p50ms24h": 152,
          "p95ms24h": 287,
          "samples24h": 239,
          "samples30d": 7910,
          "days": [
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 246
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 248
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 249
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-22",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-23",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-24",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-25",
              "probes": 250,
              "ok": 249
            },
            {
              "date": "2026-10-26",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-27",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-28",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-29",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-30",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-31",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-11-01",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-11-02",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-11-03",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-11-04",
              "probes": 246,
              "ok": 246
            },
            {
              "date": "2026-11-05",
              "probes": 185,
              "ok": 185
            },
            {
              "date": "2026-11-06",
              "probes": 241,
              "ok": 241
            },
            {
              "date": "2026-11-07",
              "probes": 187,
              "ok": 187
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.fish.audio",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-11-06T20:50:03.433614425Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "fishaudio/fish-audio-python",
            "version": "fish-audio-sdk-v1.4.0",
            "released": "2026-10-31",
            "seenAt": "2026-11-06T23:26:19.275666578Z"
          },
          {
            "registry": "npm",
            "name": "fish-audio",
            "version": "0.1.0",
            "seenAt": "2026-11-06T23:26:19.159287784Z"
          },
          {
            "registry": "pypi",
            "name": "fish-audio-sdk",
            "version": "1.4.0",
            "released": "2026-10-31",
            "seenAt": "2026-11-06T23:26:19.048257618Z"
          }
        ],
        "githubStars": 232,
        "npmWeekly": 6234,
        "pypiWeekly": 54219,
        "securityTxt": {
          "url": "https://fish.audio/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-07T16:01:20.344131882Z"
        },
        "llmsTxt": {
          "url": "https://docs.fish.audio/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-11-07T15:32:32.332077471Z"
        },
        "domain": {
          "domain": "fish.audio",
          "registered": "2023-12-11",
          "source": "https://rdap.centralnic.com/audio/domain/fish.audio",
          "checkedAt": "2026-11-01T14:23:11.45479758Z"
        },
        "pages": [
          {
            "url": "https://docs.fish.audio/developer-guide/getting-started/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:18:45.828187127Z",
            "changedAt": "2026-10-08T18:18:45.828187127Z",
            "fingerprint": "13e70b07be76"
          },
          {
            "url": "https://docs.fish.audio/developer-guide/models-pricing/deprecations",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-11-07T14:06:22.18913273Z",
            "changedAt": "2026-10-30T05:37:23.977055042Z",
            "fingerprint": "6e681f8e2daa"
          },
          {
            "url": "https://docs.fish.audio/developer-guide/models-pricing/pricing-and-rate-limits",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:18:50.041790519Z",
            "changedAt": "2026-10-08T18:18:50.041790519Z",
            "fingerprint": "72beddda15dd"
          },
          {
            "url": "https://fish.audio/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:25.505679803Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "14953e34f56f"
          },
          {
            "url": "https://fish.audio/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:27.718731591Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "659fc3527722"
          }
        ],
        "mcpTools": {
          "url": "https://api.fish.audio/mcp",
          "checkedAt": "2026-11-07T01:44:36.579838561Z",
          "status": "auth",
          "note": "asks for credentials before listing its tools",
          "changedAt": "2026-11-07T01:44:36.579838561Z"
        },
        "github": {
          "repo": "fishaudio/fish-audio-python",
          "checkedAt": "2026-11-02T08:48:46.297965397Z",
          "stars": 231,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-31T05:07:38Z",
          "openIssues": 6,
          "openPRs": 9,
          "issuesOpened90d": 0,
          "issuesClosed90d": 0,
          "prsMerged90d": 4,
          "ci": {
            "branch": "main",
            "runs": 50,
            "success": 46,
            "failure": 4,
            "other": 0,
            "latest": "success",
            "latestAt": "2026-10-31T05:04:56Z"
          },
          "replies": {
            "sampled": 24,
            "unanswered": 5,
            "medianDays": 0.6
          }
        },
        "updatedAt": "2026-11-07T18:20:25.399787632Z"
      }
    },
    "answer": "Fish Audio Voice Cloning API scores 61.5 (C) on agent readiness against Smallest.ai Instant Voice Clone's 58 (C), and leads in 4 of 7 scored categories. Smallest.ai Instant Voice Clone leads on security \u0026 auth and transparency \u0026 trust.",
    "b": {
      "slug": "smallest-voice-clone",
      "name": "Smallest.ai Instant Voice Clone",
      "vendor": "Smallest, Inc.",
      "vendorUrl": "https://smallest.ai",
      "kind": "model",
      "category": "voice-cloning",
      "summary": "Smallest.ai's instant voice cloning API creates a reusable voice for its Lightning text-to-speech models from a 5 to 15 second sample in one multipart POST, returning the voice ID and sample clips of the cloned voice.",
      "url": "https://www.anchorterminal.com/tools/smallest-voice-clone",
      "markdownUrl": "https://www.anchorterminal.com/tools/smallest-voice-clone.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/smallest-voice-clone.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/smallest-voice-clone.json",
      "dns": "smallest-voice-clone.grade.anchorterminal.com",
      "license": "Proprietary service under Smallest's Terms of Service. The `smallestai` Python SDK is on PyPI",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.smallest.ai/waves/v1/voice-cloning",
      "packages": [
        {
          "registry": "pypi",
          "name": "smallestai"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer API key created in the Smallest dashboard after a browser signup, shown once, revoked by deleting it. Keys have no scopes. Short-lived access tokens minted from a key work on TTS, STT and speech-to-speech routes but are not accepted on the cloning endpoint.",
      "pricing": "usage",
      "pricingNotes": "No price per clone is published. Speech from a clone is about $0.175 per 10,000 characters on Lightning v3.1 and $0.195 on v3.1 Pro, pay as you go. The agents pricing page states $10 in free credits. The models pricing table marks voice cloning No on pay as you go, while the docs let any API key clone (checked 2026-11-06).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs, llms.txt or the pricing pages (checked 2026-11-06).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-06"
      },
      "docsUrl": "https://docs.smallest.ai/models/voice-cloning/instant-clone-api",
      "llmsTxt": "https://docs.smallest.ai/llms.txt",
      "capabilities": [
        "voice.clone",
        "speech.tts"
      ],
      "tags": [
        "hosted",
        "official",
        "closed-source",
        "usage",
        "python",
        "llms-txt",
        "status-page",
        "enterprise",
        "data-residency"
      ],
      "lastRelease": "2026-10-29",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 58,
        "grade": "C",
        "agentReady": false,
        "rank": 768,
        "ranked": true,
        "rankOf": 1486,
        "categoryRank": 8,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 62,
          "maintenance": 72,
          "payments": 20,
          "reliability": 65,
          "schema": 70,
          "security": 48,
          "transparency": 72
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-06"
        },
        "negative": 0,
        "verdict": "One multipart POST clones a voice from 5 to 15 seconds of audio and returns sample clips, with dated deprecation notices and current changelog entries. The endpoint still defaults to a model whose clones stop working on 30 November 2026, there's no consent field or clone price, and the status feed shows frequent short API outages.",
        "bestFor": "Teams already on Smallest's Lightning TTS or voice agents who want a clone from a short clip in one call.",
        "strengths": [
          "Synchronous clone from 5 to 15 seconds of audio that returns the voice ID and signed URLs to sample clips of the new voice",
          "Seven documented error cases with causes, including `voice_clone_timeout` and `voice_clone_error` codes",
          "A deprecation page dates every retirement and gives the migration steps for clones",
          "The Terms say customer content isn't used for training, and India and USA region hostnames are documented",
          "llms.txt and a Markdown copy of every docs page"
        ],
        "weaknesses": [
          "The endpoint defaults to `lightning-v3.1`, whose clones stop working on 30 November 2026",
          "No consent or verification field, and no price per clone or clone limit published",
          "The pricing table marks voice cloning unavailable on pay as you go, while the docs let any key clone",
          "status.smallest.ai lists dozens of short API outages in 90 days, with a cluster across every region on 13 to 17 September 2026",
          "No idempotency key, no pagination on the clone list, and plain unscoped API keys"
        ],
        "agentNotes": [
          "Always pass `model=lightning-v3.1-pro`. The default `lightning-v3.1` clones stop working on 30 November 2026",
          "Use the returned `voiceId` with the matching TTS model and check `modelIds` from `GET /waves/v1/voice-cloning` if a TTS call returns a tiny WAV",
          "Before retrying a `voice_clone_timeout`, list clones by `displayName` so a retry doesn't create a duplicate",
          "Send the server API key, not an access token. The cloning endpoint refuses short-lived tokens",
          "Keep TTS calls from a clone to one at a time on the self-serve plan and back off on 429"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 58
          }
        ],
        "editorialScores": {
          "ergonomics": 62,
          "maintenance": 72,
          "payments": 20,
          "reliability": 65,
          "schema": 70,
          "security": 48,
          "transparency": 57
        },
        "provenanceScore": 87,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-06",
            "maintenance": "2026-11-06",
            "payments": "2026-11-06",
            "reliability": "2026-11-06",
            "schema": "2026-11-06",
            "security": "2026-11-06",
            "transparency": "2026-11-06"
          },
          "last": "2026-11-06",
          "oldest": "2026-11-06",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "pip install smallestai",
        "http": "curl -X POST \"https://api.smallest.ai/waves/v1/voice-cloning\" \\\n  -H \"Authorization: Bearer $SMALLEST_API_KEY\" \\\n  -F \"displayName=my-custom-voice\" \\\n  -F \"file=@/path/to/sample.wav\" \\\n  -F \"model=lightning-v3.1-pro\" \\\n  -F \"language=en\""
      },
      "letme": {
        "capability": "https://letme.dev/voice.clone",
        "tool": "https://letme.dev/smallest-voice-clone"
      },
      "sameCompany": [
        "smallest-pulse-stt",
        "smallest-lightning-tts"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "Speech from a clone, Lightning v3.1",
          "unit": "1m-chars",
          "usd": 17.5,
          "note": "about $0.175 per 10,000 characters, pay as you go"
        },
        {
          "item": "Speech from a clone, Lightning v3.1 Pro",
          "unit": "1m-chars",
          "usd": 19.5,
          "note": "about $0.195 per 10,000 characters, pay as you go"
        }
      ],
      "provenance": {
        "legalEntity": "Smallest, Inc.",
        "domain": "smallest.ai",
        "domainRegistered": "2023-09-02",
        "endpointOnVendorDomain": true,
        "terms": "https://smallest.ai/terms-of-service",
        "privacy": "https://smallest.ai/privacy-policy",
        "statusPage": "https://status.smallest.ai",
        "changelog": "https://docs.smallest.ai/changelog/models",
        "securityTxt": "valid",
        "checked": "2026-11-06",
        "notes": [
          "The Terms of Service (effective 21 October 2026) name Smallest, Inc. under California law with arbitration. The Privacy Policy and Prohibited Use Policy are effective 18 September 2026.",
          "The Prohibited Use Policy bars data mining, robots or scraping except as the site's robots.txt allows. smallest.ai/robots.txt allows ClaudeBot and all agents on the pages read and sets `Content-Signal: ai-train=yes, search=yes, ai-input=yes`.",
          "security.txt at smallest.ai/.well-known/security.txt is valid until 31 December 2026, with security@smallest.ai.",
          "RDAP gives smallest.ai a registration date of 2 September 2023.",
          "trust.smallest.ai did not answer through our proxy (502) and smallest.ai/security returns 404."
        ],
        "score": 87
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/smallest-voice-clone.json",
      "live": {
        "slug": "smallest-voice-clone",
        "probe": {
          "target": "https://api.smallest.ai/waves/v1/voice-cloning",
          "method": "get",
          "lastAt": "2026-11-07T18:20:55.191256377Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 378,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 361,
          "p95ms24h": 429,
          "samples24h": 200,
          "samples30d": 200,
          "days": [
            {
              "date": "2026-11-06",
              "probes": 13,
              "ok": 13
            },
            {
              "date": "2026-11-07",
              "probes": 187,
              "ok": 187
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.smallest.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-11-07T04:48:45.839717169Z"
        },
        "versions": [
          {
            "registry": "pypi",
            "name": "smallestai",
            "version": "5.14.0",
            "released": "2026-10-07",
            "seenAt": "2026-11-07T00:06:42.794457962Z"
          }
        ],
        "pypiWeekly": 850,
        "securityTxt": {
          "url": "https://smallest.ai/.well-known/security.txt",
          "state": "valid",
          "expires": "2026-12-31T23:59:59.000Z",
          "checkedAt": "2026-11-07T16:01:21.76871346Z"
        },
        "llmsTxt": {
          "url": "https://docs.smallest.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-11-07T15:34:00.872777157Z"
        },
        "updatedAt": "2026-11-07T18:20:55.191256377Z"
      }
    },
    "edges": [
      {
        "by": 13,
        "category": "security",
        "leads": "smallest-voice-clone",
        "name": "Security \u0026 auth",
        "reasons": {
          "a": "Graded for voice cloning, with consent and misuse controls in place of the read-only line and training and retention of voice data in place of the prompt-injection line, since the API returns audio and IDs rather than third-party text. Plain revocable API keys with no scopes found. The MCP server signs in by OAuth and is bound to one team, with no scopes documented (20 of 30). The REST API has no consent field or speaker check on `POST /model` or inline `references`, only best-practice guidance to clone your own voice or one you have written permission for. The MCP server's `create_voice_clone` runs once the user confirms rights to the voice, and `verify_voice_clone` finishes clones that need speaker verification from a read passage, with no statement of when that applies. MCP clones are unlisted by default, so anyone with the ID can use them. Professional Voice Clone verification is in the web app only. No watermark or detection tool found (5 of 20). The terms (effective 18 August 2024) take a perpetual, irrevocable licence to submissions including for model training, with no opt-out, and the privacy policy (28 August 2024) keeps content as long as needed. Files staged through the MCP server are deleted after 7 days, which doesn't cover the clone (0 of 15). Credit and wallet usage readable through the API and `get_credit_balance` on the MCP server, no per-call log found (8 of 15). security.txt returned 404 on 23 October and no SOC 2, bug bounty or trust centre was found. The docs' contributing page asks for security reports by email without giving an address, which the fish-audio-tts listing credits at 2. This listing gave 0 on the same evidence, now aligned. No advisories for either SDK in OSV on 4 November (2 of 20). The pages are per the 23 October check, not re-read on 4 November. 20+5+0+8+2 = 35.",
          "b": "Graded for voice cloning as the other listings in this category, with consent and misuse controls in place of the read-only line and training and retention of voice data in place of the prompt-injection line. Plain bearer keys, shown once, revocable, with rotation guidance and no scopes. Short-lived access tokens are refused on the cloning endpoint (20 of 30). No consent or verification field. The Terms let Smallest demand proof that the speaker authorised a clone and remove voices without it, and the prohibited use policy bars unauthorised impersonation. No watermark found (6 of 20). The Terms say Smallest won't use User Content or Input to train its services. Zero retention and retention windows are Enterprise options, and no retention period for samples is published (9 of 15). A usage dashboard, with no audit log found (5 of 15). A valid security.txt naming security@smallest.ai and a HIPAA business associate agreement page. The trust centre didn't answer through our proxy, so no certification was confirmed first-hand, and no bug bounty was found (8 of 20). 20+6+9+5+8 = 48."
        },
        "scores": {
          "a": 35,
          "b": 48
        }
      },
      {
        "by": 11,
        "category": "schema",
        "leads": "fish-audio-voice-cloning",
        "name": "Schema \u0026 documentation",
        "reasons": {
          "a": "Public OpenAPI 3.1 at docs.fish.audio/api-reference/openapi.json, re-read on 23 October with 39 paths (25). llms.txt and Markdown pages (10). The voice cloning guide says when to create a persistent model and when to pass reference audio inline (14 of 20). Inputs typed, with an enum for `visibility`, `train_mode` fixed to `fast`, 1 to 20 voice files, and ranges on every voice design field (14 of 15). Examples throughout, but the create-model reference still documents only 401 and 503 with a `{status, message, reason}` body (8 of 15). The changelog is now dated and current to 20 October 2026 and has S2.1 Pro (23 June 2026). It still has no entry for voice design or the model endpoints, and paths mix unversioned `/model` with `/v1` (10 of 15). The OpenAPI file, guides and changelog are per the 23 October check, not re-read on 4 November (fish.audio's terms forbid crawling). 25+10+14+14+8+10 = 81.",
          "b": "The API reference pages are generated with typed fields, enums and error schemas, but no OpenAPI file was found linked from the docs or llms.txt (5 of 25). llms.txt and a Markdown copy of every page (10). The guide says when to use the Pro pool, how to check `modelIds` before synthesis and why a mismatched clone returns empty audio, while the reference still names the retiring default (14 of 20). `model` and `language` are enums validated by the server, with required `displayName` and `file`, a 5 MB limit and MIME types listed, and `tags` as a comma-separated string (12 of 15). Examples in curl, Python and Node.js and a table of seven error cases with causes (14 of 15). Paths under `/v1`, a deprecation page with dated statuses and a models changelog with entries on 21, 24, 26, 28 and 29 October 2026 (15). 5+10+14+12+14+15 = 70."
        },
        "scores": {
          "a": 81,
          "b": 70
        }
      },
      {
        "by": 11,
        "category": "ergonomics",
        "leads": "fish-audio-voice-cloning",
        "name": "Agent ergonomics",
        "reasons": {
          "a": "Creating a model returns the model object with author and engagement fields, heavier than an ID and status (20 of 25). `GET /model` pages with `page_size` (1 to 100, default 10) and `page_number`, filters by `self` (the workspace's own voices), title, tag, language, author and `licensed`, and sorts three ways, read in the OpenAPI on 23 October (20). Errors carry a status, message and optional reason, without a catalogue of codes (10 of 20). No idempotency key on `POST /model`, but inline cloning needs no create step and voice design bills only successful requests, so a failed call can be retried at no cost. The 429 backoff guidance doesn't change this line (10 of 20). Official Python and JavaScript SDKs and a short required field list. Python `fish-audio-sdk` 1.4.0 (30 October 2026) accepts `s2.1-pro-free` and `drama-3`, while npm `fish-audio` stays at 0.1.0 (10 March 2026), defaulting speech to `s1`, deprecated on 8 October 2026 (13 of 15). The API readings are per the 23 October check, not re-read on 4 November. 20+20+10+10+13 = 73.",
          "b": "The clone response is a compact object with the voice ID, status and signed URLs to sample clips rather than inline audio (20 of 25). The list call returns every clone on the organisation with no pagination or filter found (10 of 20). Errors carry a message and, on 500, an `error_code` enum with a stated fix, such as retrying `voice_clone_timeout` (16 of 20). No idempotency key, and retrying a timeout can leave a duplicate clone, with deletion through an oddly named route (4 of 20). Two required fields. The Python SDK `smallestai` 5.14.0 is current, while the npm package `smallestai` was last published on 16 April 2025 (12 of 15). 20+10+16+4+12 = 62."
        },
        "scores": {
          "a": 73,
          "b": 62
        }
      },
      {
        "by": 11,
        "category": "transparency",
        "leads": "smallest-voice-clone",
        "name": "Transparency \u0026 trust",
        "reasons": {
          "a": "Closed API with clear terms, plus S2-Pro weights published under Fish Audio's own research licence, which isn't OSI-approved (20 of 30). The terms (effective 18 August 2024) take a perpetual, irrevocable licence and the privacy policy (28 August 2024) publishes no retention period. The docs mention DPA guarantees on `s2.1-pro`, and we found no DPA text or subprocessor list. Files staged through the MCP server are deleted after 7 days (5 of 30). A deprecations page with dates. Fish Speech v1.5 and v1.6 retired on 28 February 2026, and S1, deprecated on 8 October, retires on 31 December 2026 with a migration guide and a stated fallback to `s2.1-pro` at the same price (16 of 20). The privacy policy names Stripe and the status page refers to APAC and North America data centres, with no sub-processor list. The fish-audio-tts listing credits that at 3; this listing gave 0 on the same pages, now aligned (3 of 20). The pages are per the 23 October check, not re-read on 4 November. 20+5+16+3 = 44.",
          "b": "Closed service with clear terms naming Smallest, Inc. under California law, effective 21 October 2026 (15 of 30). The Terms rule out training on customer content, the Privacy Policy (18 September 2026) gives retention criteria but no periods, and the Zero Data Retention page is specific about Enterprise options, with nothing on how long cloning samples are kept (16 of 30). A deprecation page with dated statuses (deprecated, rejects, removed, scheduled, retiring) and migration targets (16 of 20). Two regions named with locations. No sub-processor list was found and a DPA page exists unread (10 of 20). 15+16+16+10 = 57."
        },
        "scores": {
          "a": 61,
          "b": 72
        }
      },
      {
        "by": 10,
        "category": "reliability",
        "leads": "fish-audio-voice-cloning",
        "name": "Reliability",
        "reasons": {
          "a": "Status page at status.fish.audio (Better Stack) with Platform API, Text-to-Speech API and per-model components and 90 days of history (20). fish.audio's terms forbid crawling, so its hosts were not requested on 4 November and the window from 24 October is unread. Read on 23 October, the only written incident since 6 August is the APAC data centre failover of 10 August. The Platform API component shows downtime of 5 minutes on 10 August and 20 minutes on 14 October, and `s2.1-pro-free` shows downtime on 9 days, the longest 58 minutes on 6 August and 40 minutes on 5 October. `s2.1-pro`, `s2-pro`, `s1` and `drama-3` show 100%. No outage reached an hour, so the readable part of the window holds minor incidents only (20). Concurrency limits published as 5, 15 and 50 by prepaid amount (15). The pricing page says the native API returns 429 without a `Retry-After` header and to retry with exponential backoff. `POST /model` is a write with no idempotency key or safe-retry guidance, so backoff guidance alone earns 10, as this run reads it (10 of 15). The models page mentions TTFA and DPA guarantees for `s2.1-pro`, but no SLA document was found (0). Cloning, `s2.1-pro` and voice design are generally available (10). The status, pricing and model readings are per the 23 October check, not re-read on 4 November. 20+20+15+10+0+10 = 75.",
          "b": "Graded on the hosted cloning API with the hosted lines. status.smallest.ai is the vendor's own status page with components per region and a dated incident feed (20). The feed, read on 6 November, has dozens of automated outage alerts on the API components in the 90 days from 8 August, most a few minutes long, and a cluster across every API region from 13 to 17 September. The 60-day uptime bars read 99.790 per cent for API USA and 99.849 per cent for API Global. No single outage of an hour was found, but repeated wide outages read as one major episode (10). Rate limits are published for TTS (one concurrent request, 100 a minute on pay as you go), while the per-organisation clone limit has no number (10 of 15). The limits page says to handle 429 gracefully and the clone errors say to retry a timeout, with no Retry-After, backoff figures or idempotency key (5 of 15). The pricing table lists an Enterprise SLA of 99.99 per cent (10). Instant cloning carries no beta label (10). 20+10+10+5+10+10 = 65."
        },
        "scores": {
          "a": 75,
          "b": 65
        }
      },
      {
        "by": 10,
        "category": "payments",
        "leads": "fish-audio-voice-cloning",
        "name": "Payments \u0026 pricing",
        "reasons": {
          "a": "No x402, MPP or L402 in the docs, the OpenAPI file or the pricing page (0). Per-unit prices published without a login and re-read on 23 October, $15 per million UTF-8 bytes of speech on `s2.1-pro`, $50 on `drama-3` ($10 until 12 November 2026) and $0.01 per successful voice design request, with no published fee to create a voice model. Cloning on the MCP server is free (20). The `s2.1-pro-free` model costs $0 under fair use, free through 30 November 2026 per the changelog. The card requirement isn't stated (10 of 20). Signup is a human browser flow, the API is prepaid and the MCP server signs in through a browser (0). 0+20+10+0 = 30.",
          "b": "No x402, MPP or L402 (0). Per-character TTS prices are public, about $0.175 per 10,000 characters on Lightning v3.1, but no price per clone is published and the models pricing table marks voice cloning No on pay as you go, against the docs (10). The agents pricing page states $10 in free credits, and whether a card is needed wasn't established (10 of 20). A person signs up in a browser and creates the key in the dashboard (0). 0+10+10+0 = 20."
        },
        "scores": {
          "a": 30,
          "b": 20
        }
      }
    ],
    "facts": [
      {
        "a": "Model API",
        "b": "Model API",
        "name": "Kind"
      },
      {
        "a": "Fish Audio",
        "b": "Smallest, Inc.",
        "name": "Vendor"
      },
      {
        "a": "https://api.fish.audio",
        "b": "https://api.smallest.ai/waves/v1/voice-cloning",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "free",
        "b": "$17.50 per 1M characters",
        "name": "Price for voice cloning"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Apache-2.0 (Python SDK)",
        "b": "Proprietary service under Smallest's Terms of Service. The `smallestai` Python SDK is on PyPI",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-30",
        "b": "2026-10-29",
        "name": "Last release"
      },
      {
        "a": "2024-08-18",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "2024-08-28",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "218 stars, 6.4k npm/wk, 37k PyPI/wk",
        "b": "none",
        "name": "Popularity"
      },
      {
        "a": "2.5/5 (2)",
        "b": "none",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Fish Audio Voice Cloning API scores 61.5 (C) on agent readiness against Smallest.ai Instant Voice Clone's 58 (C), and leads in 4 of 7 scored categories. Smallest.ai Instant Voice Clone leads on security \u0026 auth and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Fish Audio Voice Cloning API or Smallest.ai Instant Voice Clone?"
      },
      {
        "answer": "Fish Audio Voice Cloning API, at free against $17.50 per 1M characters for Smallest.ai Instant Voice Clone. These are the vendors' published prices for the job.",
        "question": "Which is cheaper for voice cloning, Fish Audio Voice Cloning API or Smallest.ai Instant Voice Clone?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Fish Audio Voice Cloning API and Smallest.ai Instant Voice Clone need an API key?"
      },
      {
        "answer": "Yes. Fish Audio Voice Cloning API has a hosted endpoint at https://api.fish.audio and Smallest.ai Instant Voice Clone at https://api.smallest.ai/waves/v1/voice-cloning.",
        "question": "Can an agent call Fish Audio Voice Cloning API and Smallest.ai Instant Voice Clone without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 75 against 65",
          "Schema \u0026 documentation, 81 against 70",
          "Agent ergonomics, 73 against 62",
          "Payments \u0026 pricing, 30 against 20"
        ],
        "also": [
          "Cheaper for voice cloning, $0 against $17.50 per 1M characters"
        ],
        "goodFor": "Cheap, quick clones of your own voice and for prompt-designed voices at volume, now also from an MCP client.",
        "slug": "fish-audio-voice-cloning",
        "watchFor": "No consent or speaker verification on the REST API. The MCP server asks only for a rights confirmation"
      },
      {
        "aheadOn": [
          "Security \u0026 auth, 48 against 35",
          "Transparency \u0026 trust, 72 against 61"
        ],
        "also": null,
        "goodFor": "Teams already on Smallest's Lightning TTS or voice agents who want a clone from a short clip in one call.",
        "slug": "smallest-voice-clone",
        "watchFor": "The endpoint defaults to `lightning-v3.1`, whose clones stop working on 30 November 2026"
      }
    ],
    "history": {
      "fish-audio-voice-cloning": [
        {
          "causes": [
            "correction"
          ],
          "date": "2026-11-04",
          "delta": 1.4,
          "from": 60.1,
          "fromGrade": "C",
          "to": 61.5,
          "toGrade": "C"
        },
        {
          "causes": [
            "evidence"
          ],
          "date": "2026-10-28",
          "delta": 0.1,
          "from": 60,
          "fromGrade": "C",
          "to": 60.1,
          "toGrade": "C"
        },
        {
          "causes": [
            "method"
          ],
          "date": "2026-10-27",
          "delta": 0.1,
          "from": 59.9,
          "fromGrade": "C",
          "to": 60,
          "toGrade": "C"
        }
      ],
      "smallest-voice-clone": null
    },
    "job": {
      "capability": "voice.clone",
      "name": "Voice cloning"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-fish-audio-voice-cloning.json",
        "title": "Cartesia Voice Cloning API + MCP vs Fish Audio Voice Cloning API",
        "url": "https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-fish-audio-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-smallest-voice-clone.json",
        "title": "Cartesia Voice Cloning API + MCP vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-fish-audio-voice-cloning.json",
        "title": "ElevenLabs Voice Cloning and Voice Design API vs Fish Audio Voice Cloning API",
        "url": "https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-fish-audio-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-smallest-voice-clone.json",
        "title": "ElevenLabs Voice Cloning and Voice Design API vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-gradium-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Gradium Voice Cloning and Voice Design",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-gradium-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-hume-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Hume Octave Voice Design and Cloning + MCP",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-hume-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-inworld-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Inworld Instant Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-inworld-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-minimax-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs MiniMax Voice Clone and Voice Design",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-minimax-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-murf-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Murf Voice Cloning API",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-murf-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-playht-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs PlayHT Voice Cloning API",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-playht-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-resemble-ai-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Resemble AI Voice Cloning API",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-resemble-ai-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-soniox-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Soniox Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-soniox-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-speechify-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Speechify API Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-speechify-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-ultravox-voice-cloning.json",
        "title": "Fish Audio Voice Cloning API vs Ultravox Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-ultravox-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-voicestudio.json",
        "title": "Fish Audio Voice Cloning API vs VoiceStudio",
        "url": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-voicestudio"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gradium-voice-cloning-vs-smallest-voice-clone.json",
        "title": "Gradium Voice Cloning and Voice Design vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/gradium-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/hume-voice-cloning-vs-smallest-voice-clone.json",
        "title": "Hume Octave Voice Design and Cloning + MCP vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/hume-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/inworld-voice-cloning-vs-smallest-voice-clone.json",
        "title": "Inworld Instant Voice Cloning vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/inworld-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/minimax-voice-cloning-vs-smallest-voice-clone.json",
        "title": "MiniMax Voice Clone and Voice Design vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/minimax-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/murf-voice-cloning-vs-smallest-voice-clone.json",
        "title": "Murf Voice Cloning API vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/murf-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/playht-voice-cloning-vs-smallest-voice-clone.json",
        "title": "PlayHT Voice Cloning API vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/playht-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/resemble-ai-voice-cloning-vs-smallest-voice-clone.json",
        "title": "Resemble AI Voice Cloning API vs Smallest.ai Instant Voice Clone",
        "url": "https://www.anchorterminal.com/compare/resemble-ai-voice-cloning-vs-smallest-voice-clone"
      },
      {
        "json": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-soniox-voice-cloning.json",
        "title": "Smallest.ai Instant Voice Clone vs Soniox Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-soniox-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-speechify-voice-cloning.json",
        "title": "Smallest.ai Instant Voice Clone vs Speechify API Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-speechify-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-ultravox-voice-cloning.json",
        "title": "Smallest.ai Instant Voice Clone vs Ultravox Voice Cloning",
        "url": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-ultravox-voice-cloning"
      },
      {
        "json": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-voicestudio.json",
        "title": "Smallest.ai Instant Voice Clone vs VoiceStudio",
        "url": "https://www.anchorterminal.com/compare/smallest-voice-clone-vs-voicestudio"
      }
    ],
    "panel": null,
    "scores": [
      {
        "by": 10,
        "edge": "fish-audio-voice-cloning",
        "fish-audio-voice-cloning": 75,
        "key": "reliability",
        "name": "Reliability",
        "smallest-voice-clone": 65,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 11,
        "edge": "fish-audio-voice-cloning",
        "fish-audio-voice-cloning": 81,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "smallest-voice-clone": 70,
        "weight": 13
      },
      {
        "by": 11,
        "edge": "fish-audio-voice-cloning",
        "fish-audio-voice-cloning": 73,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "smallest-voice-clone": 62,
        "weight": 13
      },
      {
        "by": 13,
        "edge": "smallest-voice-clone",
        "fish-audio-voice-cloning": 35,
        "key": "security",
        "name": "Security \u0026 auth",
        "smallest-voice-clone": 48,
        "weight": 14
      },
      {
        "by": 10,
        "edge": "fish-audio-voice-cloning",
        "fish-audio-voice-cloning": 30,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "smallest-voice-clone": 20,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 0,
        "edge": "",
        "fish-audio-voice-cloning": 72,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "smallest-voice-clone": 72,
        "weight": 7
      },
      {
        "by": 11,
        "edge": "smallest-voice-clone",
        "fish-audio-voice-cloning": 61,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "smallest-voice-clone": 72,
        "weight": 7
      }
    ],
    "summary": "Fish Audio Voice Cloning API scores 61.5 (C) on agent readiness against Smallest.ai Instant Voice Clone's 58 (C), and leads in 4 of 7 scored categories. Smallest.ai Instant Voice Clone leads on security \u0026 auth and transparency \u0026 trust. Both do voice cloning. Fish Audio Voice Cloning API is cheaper for voice cloning, $0 against $17.50 per 1M characters.",
    "tasks": [
      {
        "a": "$0.13 to $0.45",
        "b": "$0.16 to $0.18",
        "cheaper": "fish-audio-voice-cloning",
        "task": "Narrate a 9,000-character script",
        "what": "about 1,500 words"
      }
    ],
    "tutorials": [
      {
        "title": "Create a private voice model with Fish Audio",
        "tool": "fish-audio-voice-cloning",
        "url": "https://www.anchorterminal.com/tutorials/fish-audio-voice-cloning/"
      }
    ],
    "verdicts": {
      "fish-audio-voice-cloning": "Usable clone from about 10 seconds of audio, available as soon as it's created, and an MCP server that asks the user to confirm rights before cloning. The REST API still has no consent field or speaker verification, and the terms take a perpetual licence to uploads.",
      "smallest-voice-clone": "One multipart POST clones a voice from 5 to 15 seconds of audio and returns sample clips, with dated deprecation notices and current changelog entries. The endpoint still defaults to a model whose clones stop working on 30 November 2026, there's no consent field or clone price, and the status feed shows frequent short API outages."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone",
    "json": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone.min.md"
  },
  "markdown": "Fish Audio Voice Cloning API scores 61.5 (C) on agent readiness against Smallest.ai Instant Voice Clone's 58 (C), and leads in 4 of 7 scored categories. Smallest.ai Instant Voice Clone leads on security \u0026 auth and transparency \u0026 trust. Both do voice cloning. Fish Audio Voice Cloning API is cheaper for voice cloning, $0 against $17.50 per 1M characters.\n\n- Fish Audio Voice Cloning API: grade C, 61.5/100, rank #604 of 1486. Markdown https://www.anchorterminal.com/tools/fish-audio-voice-cloning.md · JSON https://www.anchorterminal.com/api/v1/tools/fish-audio-voice-cloning.json\n- Smallest.ai Instant Voice Clone: grade C, 58/100, rank #768 of 1486. Markdown https://www.anchorterminal.com/tools/smallest-voice-clone.md · JSON https://www.anchorterminal.com/api/v1/tools/smallest-voice-clone.json\n- Best voice cloning and custom voice APIs for AI agents: https://www.anchorterminal.com/best/voice-cloning/index.md\n- All 133 cloning comparisons: https://www.anchorterminal.com/compare/voice-cloning/index.md\n\n## Which one, for what\n\n### Fish Audio Voice Cloning API (C)\n\nGood for: Cheap, quick clones of your own voice and for prompt-designed voices at volume, now also from an MCP client.\n\nAhead on:\n- Reliability, 75 against 65\n- Schema \u0026 documentation, 81 against 70\n- Agent ergonomics, 73 against 62\n- Payments \u0026 pricing, 30 against 20\n\nAlso in its favour:\n- Cheaper for voice cloning, $0 against $17.50 per 1M characters\n\nWatch for: No consent or speaker verification on the REST API. The MCP server asks only for a rights confirmation\n\n### Smallest.ai Instant Voice Clone (C)\n\nGood for: Teams already on Smallest's Lightning TTS or voice agents who want a clone from a short clip in one call.\n\nAhead on:\n- Security \u0026 auth, 48 against 35\n- Transparency \u0026 trust, 72 against 61\n\nWatch for: The endpoint defaults to `lightning-v3.1`, whose clones stop working on 30 November 2026\n\n\n## Why the edge\n\n### Security \u0026 auth: Smallest.ai Instant Voice Clone +13\n\n- Fish Audio Voice Cloning API (35): Graded for voice cloning, with consent and misuse controls in place of the read-only line and training and retention of voice data in place of the prompt-injection line, since the API returns audio and IDs rather than third-party text. Plain revocable API keys with no scopes found. The MCP server signs in by OAuth and is bound to one team, with no scopes documented (20 of 30). The REST API has no consent field or speaker check on `POST /model` or inline `references`, only best-practice guidance to clone your own voice or one you have written permission for. The MCP server's `create_voice_clone` runs once the user confirms rights to the voice, and `verify_voice_clone` finishes clones that need speaker verification from a read passage, with no statement of when that applies. MCP clones are unlisted by default, so anyone with the ID can use them. Professional Voice Clone verification is in the web app only. No watermark or detection tool found (5 of 20). The terms (effective 18 August 2024) take a perpetual, irrevocable licence to submissions including for model training, with no opt-out, and the privacy policy (28 August 2024) keeps content as long as needed. Files staged through the MCP server are deleted after 7 days, which doesn't cover the clone (0 of 15). Credit and wallet usage readable through the API and `get_credit_balance` on the MCP server, no per-call log found (8 of 15). security.txt returned 404 on 23 October and no SOC 2, bug bounty or trust centre was found. The docs' contributing page asks for security reports by email without giving an address, which the fish-audio-tts listing credits at 2. This listing gave 0 on the same evidence, now aligned. No advisories for either SDK in OSV on 4 November (2 of 20). The pages are per the 23 October check, not re-read on 4 November. 20+5+0+8+2 = 35.\n- Smallest.ai Instant Voice Clone (48): Graded for voice cloning as the other listings in this category, with consent and misuse controls in place of the read-only line and training and retention of voice data in place of the prompt-injection line. Plain bearer keys, shown once, revocable, with rotation guidance and no scopes. Short-lived access tokens are refused on the cloning endpoint (20 of 30). No consent or verification field. The Terms let Smallest demand proof that the speaker authorised a clone and remove voices without it, and the prohibited use policy bars unauthorised impersonation. No watermark found (6 of 20). The Terms say Smallest won't use User Content or Input to train its services. Zero retention and retention windows are Enterprise options, and no retention period for samples is published (9 of 15). A usage dashboard, with no audit log found (5 of 15). A valid security.txt naming security@smallest.ai and a HIPAA business associate agreement page. The trust centre didn't answer through our proxy, so no certification was confirmed first-hand, and no bug bounty was found (8 of 20). 20+6+9+5+8 = 48.\n\n### Schema \u0026 documentation: Fish Audio Voice Cloning API +11\n\n- Fish Audio Voice Cloning API (81): Public OpenAPI 3.1 at docs.fish.audio/api-reference/openapi.json, re-read on 23 October with 39 paths (25). llms.txt and Markdown pages (10). The voice cloning guide says when to create a persistent model and when to pass reference audio inline (14 of 20). Inputs typed, with an enum for `visibility`, `train_mode` fixed to `fast`, 1 to 20 voice files, and ranges on every voice design field (14 of 15). Examples throughout, but the create-model reference still documents only 401 and 503 with a `{status, message, reason}` body (8 of 15). The changelog is now dated and current to 20 October 2026 and has S2.1 Pro (23 June 2026). It still has no entry for voice design or the model endpoints, and paths mix unversioned `/model` with `/v1` (10 of 15). The OpenAPI file, guides and changelog are per the 23 October check, not re-read on 4 November (fish.audio's terms forbid crawling). 25+10+14+14+8+10 = 81.\n- Smallest.ai Instant Voice Clone (70): The API reference pages are generated with typed fields, enums and error schemas, but no OpenAPI file was found linked from the docs or llms.txt (5 of 25). llms.txt and a Markdown copy of every page (10). The guide says when to use the Pro pool, how to check `modelIds` before synthesis and why a mismatched clone returns empty audio, while the reference still names the retiring default (14 of 20). `model` and `language` are enums validated by the server, with required `displayName` and `file`, a 5 MB limit and MIME types listed, and `tags` as a comma-separated string (12 of 15). Examples in curl, Python and Node.js and a table of seven error cases with causes (14 of 15). Paths under `/v1`, a deprecation page with dated statuses and a models changelog with entries on 21, 24, 26, 28 and 29 October 2026 (15). 5+10+14+12+14+15 = 70.\n\n### Agent ergonomics: Fish Audio Voice Cloning API +11\n\n- Fish Audio Voice Cloning API (73): Creating a model returns the model object with author and engagement fields, heavier than an ID and status (20 of 25). `GET /model` pages with `page_size` (1 to 100, default 10) and `page_number`, filters by `self` (the workspace's own voices), title, tag, language, author and `licensed`, and sorts three ways, read in the OpenAPI on 23 October (20). Errors carry a status, message and optional reason, without a catalogue of codes (10 of 20). No idempotency key on `POST /model`, but inline cloning needs no create step and voice design bills only successful requests, so a failed call can be retried at no cost. The 429 backoff guidance doesn't change this line (10 of 20). Official Python and JavaScript SDKs and a short required field list. Python `fish-audio-sdk` 1.4.0 (30 October 2026) accepts `s2.1-pro-free` and `drama-3`, while npm `fish-audio` stays at 0.1.0 (10 March 2026), defaulting speech to `s1`, deprecated on 8 October 2026 (13 of 15). The API readings are per the 23 October check, not re-read on 4 November. 20+20+10+10+13 = 73.\n- Smallest.ai Instant Voice Clone (62): The clone response is a compact object with the voice ID, status and signed URLs to sample clips rather than inline audio (20 of 25). The list call returns every clone on the organisation with no pagination or filter found (10 of 20). Errors carry a message and, on 500, an `error_code` enum with a stated fix, such as retrying `voice_clone_timeout` (16 of 20). No idempotency key, and retrying a timeout can leave a duplicate clone, with deletion through an oddly named route (4 of 20). Two required fields. The Python SDK `smallestai` 5.14.0 is current, while the npm package `smallestai` was last published on 16 April 2025 (12 of 15). 20+10+16+4+12 = 62.\n\n### Transparency \u0026 trust: Smallest.ai Instant Voice Clone +11\n\n- Fish Audio Voice Cloning API (61): Closed API with clear terms, plus S2-Pro weights published under Fish Audio's own research licence, which isn't OSI-approved (20 of 30). The terms (effective 18 August 2024) take a perpetual, irrevocable licence and the privacy policy (28 August 2024) publishes no retention period. The docs mention DPA guarantees on `s2.1-pro`, and we found no DPA text or subprocessor list. Files staged through the MCP server are deleted after 7 days (5 of 30). A deprecations page with dates. Fish Speech v1.5 and v1.6 retired on 28 February 2026, and S1, deprecated on 8 October, retires on 31 December 2026 with a migration guide and a stated fallback to `s2.1-pro` at the same price (16 of 20). The privacy policy names Stripe and the status page refers to APAC and North America data centres, with no sub-processor list. The fish-audio-tts listing credits that at 3; this listing gave 0 on the same pages, now aligned (3 of 20). The pages are per the 23 October check, not re-read on 4 November. 20+5+16+3 = 44.\n- Smallest.ai Instant Voice Clone (72): Closed service with clear terms naming Smallest, Inc. under California law, effective 21 October 2026 (15 of 30). The Terms rule out training on customer content, the Privacy Policy (18 September 2026) gives retention criteria but no periods, and the Zero Data Retention page is specific about Enterprise options, with nothing on how long cloning samples are kept (16 of 30). A deprecation page with dated statuses (deprecated, rejects, removed, scheduled, retiring) and migration targets (16 of 20). Two regions named with locations. No sub-processor list was found and a DPA page exists unread (10 of 20). 15+16+16+10 = 57.\n\n### Reliability: Fish Audio Voice Cloning API +10\n\n- Fish Audio Voice Cloning API (75): Status page at status.fish.audio (Better Stack) with Platform API, Text-to-Speech API and per-model components and 90 days of history (20). fish.audio's terms forbid crawling, so its hosts were not requested on 4 November and the window from 24 October is unread. Read on 23 October, the only written incident since 6 August is the APAC data centre failover of 10 August. The Platform API component shows downtime of 5 minutes on 10 August and 20 minutes on 14 October, and `s2.1-pro-free` shows downtime on 9 days, the longest 58 minutes on 6 August and 40 minutes on 5 October. `s2.1-pro`, `s2-pro`, `s1` and `drama-3` show 100%. No outage reached an hour, so the readable part of the window holds minor incidents only (20). Concurrency limits published as 5, 15 and 50 by prepaid amount (15). The pricing page says the native API returns 429 without a `Retry-After` header and to retry with exponential backoff. `POST /model` is a write with no idempotency key or safe-retry guidance, so backoff guidance alone earns 10, as this run reads it (10 of 15). The models page mentions TTFA and DPA guarantees for `s2.1-pro`, but no SLA document was found (0). Cloning, `s2.1-pro` and voice design are generally available (10). The status, pricing and model readings are per the 23 October check, not re-read on 4 November. 20+20+15+10+0+10 = 75.\n- Smallest.ai Instant Voice Clone (65): Graded on the hosted cloning API with the hosted lines. status.smallest.ai is the vendor's own status page with components per region and a dated incident feed (20). The feed, read on 6 November, has dozens of automated outage alerts on the API components in the 90 days from 8 August, most a few minutes long, and a cluster across every API region from 13 to 17 September. The 60-day uptime bars read 99.790 per cent for API USA and 99.849 per cent for API Global. No single outage of an hour was found, but repeated wide outages read as one major episode (10). Rate limits are published for TTS (one concurrent request, 100 a minute on pay as you go), while the per-organisation clone limit has no number (10 of 15). The limits page says to handle 429 gracefully and the clone errors say to retry a timeout, with no Retry-After, backoff figures or idempotency key (5 of 15). The pricing table lists an Enterprise SLA of 99.99 per cent (10). Instant cloning carries no beta label (10). 20+10+10+5+10+10 = 65.\n\n### Payments \u0026 pricing: Fish Audio Voice Cloning API +10\n\n- Fish Audio Voice Cloning API (30): No x402, MPP or L402 in the docs, the OpenAPI file or the pricing page (0). Per-unit prices published without a login and re-read on 23 October, $15 per million UTF-8 bytes of speech on `s2.1-pro`, $50 on `drama-3` ($10 until 12 November 2026) and $0.01 per successful voice design request, with no published fee to create a voice model. Cloning on the MCP server is free (20). The `s2.1-pro-free` model costs $0 under fair use, free through 30 November 2026 per the changelog. The card requirement isn't stated (10 of 20). Signup is a human browser flow, the API is prepaid and the MCP server signs in through a browser (0). 0+20+10+0 = 30.\n- Smallest.ai Instant Voice Clone (20): No x402, MPP or L402 (0). Per-character TTS prices are public, about $0.175 per 10,000 characters on Lightning v3.1, but no price per clone is published and the models pricing table marks voice cloning No on pay as you go, against the docs (10). The agents pricing page states $10 in free credits, and whether a card is needed wasn't established (10 of 20). A person signs up in a browser and creates the key in the dashboard (0). 0+10+10+0 = 20.\n\n## Score by category\n\n| Category | Weight | Fish Audio Voice Cloning API | Smallest.ai Instant Voice Clone | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 75 | 65 | Fish Audio Voice Cloning API +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 81 | 70 | Fish Audio Voice Cloning API +11 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 62 | Fish Audio Voice Cloning API +11 |\n| Security \u0026 auth | 14% (17.5 this run) | 35 | 48 | Smallest.ai Instant Voice Clone +13 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 20 | Fish Audio Voice Cloning API +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 72 | 72 | even |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 72 | Smallest.ai Instant Voice Clone +11 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **61.5 · C** | **58 · C** | |\n\n## Facts side by side\n\n| Fact | Fish Audio Voice Cloning API | Smallest.ai Instant Voice Clone |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Fish Audio | Smallest, Inc. |\n| Hosted endpoint | `https://api.fish.audio` | `https://api.smallest.ai/waves/v1/voice-cloning` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| Price for voice cloning | free | $17.50 per 1M characters |\n| x402 | no | no |\n| Licence | Apache-2.0 (Python SDK) | Proprietary service under Smallest's Terms of Service. The `smallestai` Python SDK is on PyPI |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-30 | 2026-10-29 |\n| Terms last updated | 2024-08-18 | no date given |\n| Privacy policy last updated | 2024-08-28 | no date given |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 218 stars, 6.4k npm/wk, 37k PyPI/wk | none |\n| Agent reviews | 2.5/5 (2) | none |\n\n## What the same task costs\n\n| Task | Fish Audio Voice Cloning API | Smallest.ai Instant Voice Clone |\n| --- | --- | --- |\n| Narrate a 9,000-character script | $0.13 to $0.45 | $0.16 to $0.18 |\n\n## How the scores have moved\n\n### Fish Audio Voice Cloning API\n\n- +1.4 on 4 November 2026: correction\n- +0.1 on 28 October 2026: new evidence\n- +0.1 on 27 October 2026: checklist\n\n### Smallest.ai Instant Voice Clone\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Fish Audio Voice Cloning API.** Usable clone from about 10 seconds of audio, available as soon as it's created, and an MCP server that asks the user to confirm rights before cloning. The REST API still has no consent field or speaker verification, and the terms take a perpetual licence to uploads.\n\n**Smallest.ai Instant Voice Clone.** One multipart POST clones a voice from 5 to 15 seconds of audio and returns sample clips, with dated deprecation notices and current changelog entries. The endpoint still defaults to a model whose clones stop working on 30 November 2026, there's no consent field or clone price, and the status feed shows frequent short API outages.\n\n## Before you call either\n\n### Fish Audio Voice Cloning API\n\n1. Send 2 or 3 clean single-speaker clips with matching `texts`, or the API runs ASR on them\n2. Pass the model `_id` as `reference_id` in TTS. Check `state` before relying on it\n3. For one-off voices send `references` inline to `/v1/tts` instead of creating a model\n4. List only your own voices with `GET /model?self=true`\n5. Send the `model: voice-design-1` header on voice design calls\n6. On a 429, back off exponentially. There's no `Retry-After` header, and concurrency is 5 until prepaid spend reaches $100\n7. On the MCP server, ask for a private voice, since `create_voice_clone` makes clones unlisted by default\n\n### Smallest.ai Instant Voice Clone\n\n1. Always pass `model=lightning-v3.1-pro`. The default `lightning-v3.1` clones stop working on 30 November 2026\n2. Use the returned `voiceId` with the matching TTS model and check `modelIds` from `GET /waves/v1/voice-cloning` if a TTS call returns a tiny WAV\n3. Before retrying a `voice_clone_timeout`, list clones by `displayName` so a retry doesn't create a duplicate\n4. Send the server API key, not an access token. The cloning endpoint refuses short-lived tokens\n5. Keep TTS calls from a clone to one at a time on the self-serve plan and back off on 429\n\n## Tutorials\n\n- [Create a private voice model with Fish Audio](https://www.anchorterminal.com/tutorials/fish-audio-voice-cloning/), for Fish Audio Voice Cloning API\n\n## Questions\n\n### Which is better for AI agents, Fish Audio Voice Cloning API or Smallest.ai Instant Voice Clone?\n\nFish Audio Voice Cloning API scores 61.5 (C) on agent readiness against Smallest.ai Instant Voice Clone's 58 (C), and leads in 4 of 7 scored categories. Smallest.ai Instant Voice Clone leads on security \u0026 auth and transparency \u0026 trust.\n\n### Which is cheaper for voice cloning, Fish Audio Voice Cloning API or Smallest.ai Instant Voice Clone?\n\nFish Audio Voice Cloning API, at free against $17.50 per 1M characters for Smallest.ai Instant Voice Clone. These are the vendors' published prices for the job.\n\n### Do Fish Audio Voice Cloning API and Smallest.ai Instant Voice Clone need an API key?\n\nBoth need an API key.\n\n### Can an agent call Fish Audio Voice Cloning API and Smallest.ai Instant Voice Clone without installing anything?\n\nYes. Fish Audio Voice Cloning API has a hosted endpoint at https://api.fish.audio and Smallest.ai Instant Voice Clone at https://api.smallest.ai/waves/v1/voice-cloning.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone.json, and with the fewest tokens: https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-smallest-voice-clone.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"fish-audio-voice-cloning\", \"b\": \"smallest-voice-clone\"}`. From a terminal: `anchor compare fish-audio-voice-cloning smallest-voice-clone`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/fish-audio-voice-cloning.json and https://www.anchorterminal.com/api/v1/tools/smallest-voice-clone.json\n\n## Other comparisons with Fish Audio Voice Cloning API or Smallest.ai Instant Voice Clone\n\n- [Cartesia Voice Cloning API + MCP vs Fish Audio Voice Cloning API](https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-fish-audio-voice-cloning.md)\n- [Cartesia Voice Cloning API + MCP vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/cartesia-voice-cloning-vs-smallest-voice-clone.md)\n- [ElevenLabs Voice Cloning and Voice Design API vs Fish Audio Voice Cloning API](https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-fish-audio-voice-cloning.md)\n- [ElevenLabs Voice Cloning and Voice Design API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/elevenlabs-voice-cloning-vs-smallest-voice-clone.md)\n- [Fish Audio Voice Cloning API vs Gradium Voice Cloning and Voice Design](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-gradium-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Hume Octave Voice Design and Cloning + MCP](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-hume-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Inworld Instant Voice Cloning](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-inworld-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs MiniMax Voice Clone and Voice Design](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-minimax-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Murf Voice Cloning API](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-murf-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs PlayHT Voice Cloning API](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-playht-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Resemble AI Voice Cloning API](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-resemble-ai-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Soniox Voice Cloning](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-soniox-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Speechify API Voice Cloning](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-speechify-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs Ultravox Voice Cloning](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-ultravox-voice-cloning.md)\n- [Fish Audio Voice Cloning API vs VoiceStudio](https://www.anchorterminal.com/compare/fish-audio-voice-cloning-vs-voicestudio.md)\n- [Gradium Voice Cloning and Voice Design vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/gradium-voice-cloning-vs-smallest-voice-clone.md)\n- [Hume Octave Voice Design and Cloning + MCP vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/hume-voice-cloning-vs-smallest-voice-clone.md)\n- [Inworld Instant Voice Cloning vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/inworld-voice-cloning-vs-smallest-voice-clone.md)\n- [MiniMax Voice Clone and Voice Design vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/minimax-voice-cloning-vs-smallest-voice-clone.md)\n- [Murf Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/murf-voice-cloning-vs-smallest-voice-clone.md)\n- [PlayHT Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/playht-voice-cloning-vs-smallest-voice-clone.md)\n- [Resemble AI Voice Cloning API vs Smallest.ai Instant Voice Clone](https://www.anchorterminal.com/compare/resemble-ai-voice-cloning-vs-smallest-voice-clone.md)\n- [Smallest.ai Instant Voice Clone vs Soniox Voice Cloning](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-soniox-voice-cloning.md)\n- [Smallest.ai Instant Voice Clone vs Speechify API Voice Cloning](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-speechify-voice-cloning.md)\n- [Smallest.ai Instant Voice Clone vs Ultravox Voice Cloning](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-ultravox-voice-cloning.md)\n- [Smallest.ai Instant Voice Clone vs VoiceStudio](https://www.anchorterminal.com/compare/smallest-voice-clone-vs-voicestudio.md)\n",
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