{ "data": { "a": { "slug": "deepgram-tts", "name": "Deepgram Text-to-Speech (Aura-2, Flux TTS)", "vendor": "Deepgram", "vendorUrl": "https://deepgram.com", "kind": "model", "category": "text-to-speech", "summary": "Deepgram's text-to-speech API for generating spoken audio.", "url": "https://www.anchorterminal.com/tools/deepgram-tts", "markdownUrl": "https://www.anchorterminal.com/tools/deepgram-tts.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/deepgram-tts.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/deepgram-tts.json", "repo": "https://github.com/deepgram/deepgram-python-sdk", "license": "MIT (SDKs)", "transports": [ "http", "streamable-http", "stdio", "sse" ], "remoteUrl": "https://api.deepgram.com/v1", "packages": [ { "registry": "npm", "name": "@deepgram/sdk" }, { "registry": "pypi", "name": "deepgram-sdk" }, { "registry": "pypi", "name": "deepctl" } ], "auth": "api-key", "authNotes": "`Authorization: Token \u003ckey\u003e` header on REST and WebSocket calls. Short-lived JWTs (30-second TTL) from the token endpoint for browsers. The `dg` CLI MCP server uses `dg login` credentials or `DEEPGRAM_API_KEY`. The docs MCP needs no key.", "pricing": "usage", "pricingNotes": "$200 free credit with no card, then pay as you go. Flux TTS $0.045 per 1,000 characters, Aura-2 $0.030, Aura-1 $0.015. Growth (from $4,000 a year prepaid) cuts these to $0.0405, $0.027 and $0.0135. A matching-credit offer on Flux TTS runs to 2026-12-31, capped at $500 (https://deepgram.com/pricing).", "priceSummary": "Pay per use", "where": "both", "x402": { "level": "no", "evidence": "No x402 or machine payment in the docs or pricing. Card or prepaid credits only (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 468, "npmWeekly": 1123798, "pypiWeekly": 805026, "asOf": "2026-09-30" }, "docsUrl": "https://developers.deepgram.com/docs/tts-models-languages-overview", "llmsTxt": "https://developers.deepgram.com/llms.txt", "openapi": "https://developers.deepgram.com/openapi.json", "capabilities": [ "speech.tts", "speech.streaming", "speech.voices", "speech.languages" ], "tags": [ "hosted", "no-card", "closed-source", "python", "typescript", "openapi", "llms-txt", "mcp", "streaming", "batch", "enterprise", "self-hosted" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 73, "grade": "BB", "agentReady": true, "rank": 63, "ranked": true, "rankOf": 452, "categoryRank": 4, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 82, "maintenance": 73, "payments": 40, "reliability": 70, "schema": 95, "security": 70, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "high", "date": "2026-10-01" }, "negative": 0, "verdict": "OpenAPI 3.1 and AsyncAPI files, llms.txt and Markdown pages. Requests can be kept for training unless each one sets `mip_opt_out=true`.", "strengths": [ "OpenAPI 3.1 and AsyncAPI files, llms.txt and Markdown pages", "Flux TTS's Interrupt event returns `text_spoken` and `text_remaining` on barge-in", "Keys carry roles and scopes, and browser tokens live 30 seconds", "Per-request logs through `GET /v1/projects/{project_id}/requests`, filterable by date and status", "$200 credit with no card, then Aura-2 at $0.030 per 1,000 characters" ], "weaknesses": [ "Requests can be kept for training unless each one sets `mip_opt_out=true`", "Flux TTS is English only and capped at 5 concurrent streams in the EU, Australia and India below Enterprise", "No SSML, and Flux TTS strips other vendors' tags with a warning", "Elevated Flux TTS errors for about four hours on 25 September 2026", "Aura-2 REST requests stop at 2,000 characters" ], "agentNotes": [ "Set `mip_opt_out=true` on every request if the text mustn't be kept for training.", "Split Aura-2 REST text under 2,000 characters or expect a 413.", "Pass `model` on `/v2/speak`, where it's required.", "Strip SSML before sending, since it's removed with an `INPUT_MARKUP_STRIPPED` warning.", "Back off exponentially on 429 and keep traffic in one project." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "high", "grade": "BB", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 73 } ], "editorialScores": { "ergonomics": 82, "maintenance": 73, "payments": 40, "reliability": 70, "schema": 95, "security": 70, "transparency": 60 }, "provenanceScore": 90 }, "connect": { "http": "curl \"https://api.deepgram.com/v1/speak?model=aura-2-thalia-en\" \\\n -H \"Authorization: Token $DEEPGRAM_API_KEY\" -H \"content-type: application/json\" \\\n -d '{\"text\":\"Hello, how are you?\"}' -o hello.mp3", "claudeCode": "claude mcp add deepgram-docs --transport http https://api.dx.deepgram.com/kapa/mcp", "config": { "mcpServers": { "deepgram": { "args": [ "mcp" ], "command": "dg", "env": { "DEEPGRAM_API_KEY": "${DEEPGRAM_API_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/speech.tts", "tool": "https://letme.dev/deepgram-tts" }, "sameCompany": [ "deepgram-stt", "deepgram-voice-agent" ], "area": "voice", "unitPrices": [ { "item": "Flux TTS", "unit": "1m-chars", "usd": 45, "note": "pay as you go, $0.045 per 1,000 characters" }, { "item": "Aura-2", "unit": "1m-chars", "usd": 30, "note": "pay as you go" }, { "item": "Aura-1", "unit": "1m-chars", "usd": 15, "note": "pay as you go" }, { "item": "Aura-2 on Growth", "unit": "1m-chars", "usd": 27, "note": "prepaid annual plan from $4,000" } ], "provenance": { "legalEntity": "Deepgram, Inc.", "domain": "deepgram.com", "domainRegistered": "2016-01-28", "endpointOnVendorDomain": true, "terms": "https://deepgram.com/terms", "privacy": "https://deepgram.com/privacy", "statusPage": "https://status.deepgram.com", "changelog": "https://developers.deepgram.com/changelog", "securityTxt": "none", "checked": "2026-09-30", "score": 90 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/deepgram-tts.json", "live": { "slug": "deepgram-tts", "probe": { "target": "https://api.deepgram.com/v1", "method": "get", "lastAt": "2026-10-04T23:48:07.226240112Z", "lastOk": true, "lastStatus": 404, "lastMs": 310, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 347, "p95ms24h": 521, "samples24h": 272, "samples30d": 1100, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 270, "ok": 270 } ] }, "vendorStatus": { "page": "https://status.deepgram.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-04T23:49:10.277586322Z" }, "versions": [ { "registry": "github", "name": "deepgram/deepgram-python-sdk", "version": "v7.12.0", "released": "2026-10-02", "seenAt": "2026-10-04T16:25:18.900755205Z" }, { "registry": "npm", "name": "@deepgram/sdk", "version": "5.14.0", "seenAt": "2026-10-04T16:25:16.604084571Z" }, { "registry": "pypi", "name": "deepctl", "version": "0.3.1", "released": "2026-09-29", "seenAt": "2026-10-04T16:25:17.004312351Z" }, { "registry": "pypi", "name": "deepgram-sdk", "version": "7.12.0", "released": "2026-10-02", "seenAt": "2026-10-04T16:25:16.891210762Z" } ], "githubStars": 468, "npmWeekly": 1147181, "pypiWeekly": 806541, "securityTxt": { "url": "https://deepgram.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:16:00.338324598Z" }, "llmsTxt": { "url": "https://developers.deepgram.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:31.890004033Z" }, "domain": { "domain": "deepgram.com", "registered": "2016-01-28", "source": "https://rdap.verisign.com/com/v1/domain/deepgram.com", "checkedAt": "2026-10-04T13:03:28.939824686Z" }, "updatedAt": "2026-10-04T23:49:10.277586322Z" } }, "b": { "slug": "resemble-ai-tts", "name": "Resemble AI Text-to-Speech API", "vendor": "Resemble AI", "vendorUrl": "https://www.resemble.ai", "kind": "model", "category": "text-to-speech", "summary": "Resemble's TTS API on its current Resemble Ultra model, which the changelog says is powered by xAI.", "url": "https://www.anchorterminal.com/tools/resemble-ai-tts", "markdownUrl": "https://www.anchorterminal.com/tools/resemble-ai-tts.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/resemble-ai-tts.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/resemble-ai-tts.json", "repo": "https://github.com/resemble-ai/resemble-node", "transports": [ "http" ], "remoteUrl": "https://app.resemble.ai/api/v2", "packages": [ { "registry": "npm", "name": "@resemble/node" }, { "registry": "pypi", "name": "resemble" } ], "auth": "api-key", "authNotes": "`Authorization: Bearer` API key on every server. Synthesis runs on `f.cluster.resemble.ai`, voices and projects on `app.resemble.ai/api/v2`, streaming on `wss://websocket.cluster.resemble.ai`. Some synchronous examples in the docs leave out the `Bearer` prefix.", "pricing": "usage", "pricingNotes": "Billed per second of generated audio. Flex has no subscription and no card to sign up, at $0.00067 a second (about $0.04 a minute). Team ($350 a month, $280 billed annually) and Business ($1,000, $800 annually) cut that to $0.0005 a second (about $0.03 a minute). WebSocket streaming needs Business. Extra seats cost $20 on Flex and $200 on Team and Business. Rates come from the public plans API, since the pricing page lists only detection products (https://app.resemble.ai/billing/api/v1/plans).", "priceSummary": "$350 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 or machine payment in the docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 15, "npmWeekly": 8053, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.resemble.ai/voice-generation/text-to-speech", "llmsTxt": "https://docs.resemble.ai/llms.txt", "openapi": "https://docs.resemble.ai/openapi.json", "capabilities": [ "speech.tts", "speech.streaming", "speech.voices", "speech.ssml" ], "tags": [ "hosted", "no-card", "closed-source", "python", "typescript", "openapi", "llms-txt", "streaming", "watermark", "enterprise" ], "lastRelease": "2026-06-30", "graded": true, "anchor": { "graded": true, "score": 50.6, "grade": "D", "agentReady": false, "rank": 357, "ranked": true, "rankOf": 452, "categoryRank": 9, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 46, "maintenance": 31, "payments": 15, "reliability": 75, "schema": 75, "security": 48, "transparency": 68 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -3, "negativeNotes": [ "2026-06-29. Resemble began deprecating every earlier TTS model, including the Chatterbox family, and the model-versions page now says voices on them can no longer generate audio until upgraded to Resemble Ultra. We found no effective date or notice period. Small deduction because the change is documented and upgrade is self-serve. https://www.resemble.ai/changelog and https://docs.resemble.ai/getting-started/model-versions.md" ], "verdict": "OpenAPI file in JSON and YAML, llms.txt and Markdown pages. Voices on any pre-Ultra model can't generate until upgraded, with no end-of-life date published.", "strengths": [ "OpenAPI file in JSON and YAML, llms.txt and Markdown pages", "SSML with prompt, temperature and exaggeration controls and inline tags such as `[laugh]`", "Status page checks Ultra HTTP synthesis directly, 100 per cent over 90 days", "Flex has no subscription fee, $0.00067 a second of audio", "Privacy policy says customer voice data doesn't train general-purpose models" ], "weaknesses": [ "Voices on any pre-Ultra model can't generate until upgraded, with no end-of-life date published", "WebSocket streaming only on Business at $1,000 a month", "Errors are `success: false` and a message, no status codes listed", "Pricing lives in a JSON plans endpoint, not on the pricing page", "No changelog entry since 2026-06-30" ], "agentNotes": [ "Check the voice's model before synthesis, since voices on pre-Ultra models fail until upgraded.", "Keep each synchronous request under 2,000 characters.", "Decode `audio_content` from base64 on `/synthesize`, or call `/stream` for raw WAV chunks.", "Send `Authorization: Bearer`, since some doc examples leave out the prefix.", "Log the request ID with every failure, since the error body has no code." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 50.6 } ], "editorialScores": { "ergonomics": 46, "maintenance": 31, "payments": 15, "reliability": 75, "schema": 75, "security": 48, "transparency": 50 }, "provenanceScore": 86 }, "connect": { "http": "curl -X POST https://f.cluster.resemble.ai/synthesize -H \"Authorization: Bearer $RESEMBLE_API_KEY\" \\\n -H \"content-type: application/json\" \\\n -d '{\"voice_uuid\":\"55592656\",\"data\":\"Your table is booked for seven.\",\"output_format\":\"mp3\"}' \\\n | jq -r .audio_content | base64 --decode \u003e speech.mp3" }, "letme": { "capability": "https://letme.dev/speech.tts", "tool": "https://letme.dev/resemble-ai-tts" }, "sameCompany": [ "resemble-ai-voice-cloning" ], "area": "voice", "unitPrices": [ { "item": "Resemble Ultra TTS on Flex", "unit": "audio-minute", "usd": 0.0402, "note": "$0.00067 a second, no subscription" }, { "item": "Resemble Ultra TTS on Team or Business", "unit": "audio-minute", "usd": 0.03, "note": "$0.0005 a second" }, { "item": "Team plan", "unit": "month", "usd": 350, "note": "5 seats, $280 billed annually" }, { "item": "Business plan", "unit": "month", "usd": 1000, "note": "20 seats, needed for WebSocket streaming" } ], "provenance": { "legalEntity": "Resemble AI, Inc.", "domain": "resemble.ai", "domainRegistered": "2018-11-12", "endpointOnVendorDomain": true, "terms": "https://www.resemble.ai/terms-of-service", "privacy": "https://www.resemble.ai/privacy-policy", "statusPage": "https://status.resemble.ai", "changelog": "https://www.resemble.ai/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The privacy policy gives the address as 812 W Dana St, Mountain View, California" ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/resemble-ai-tts.json", "live": { "slug": "resemble-ai-tts", "probe": { "target": "https://app.resemble.ai/api/v2", "method": "get", "lastAt": "2026-10-04T23:48:15.015848466Z", "lastOk": true, "lastStatus": 404, "lastMs": 310, "authRequired": false, "uptime24h": 99.26, "uptime30d": 99.73, "p50ms24h": 311, "p95ms24h": 373, "samples24h": 272, "samples30d": 1100, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 275 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 270, "ok": 268 } ] }, "vendorStatus": { "page": "https://status.resemble.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:40:26.122903482Z" }, "versions": [ { "registry": "npm", "name": "@resemble/node", "version": "3.5.3", "seenAt": "2026-10-04T16:38:14.265469558Z" }, { "registry": "pypi", "name": "resemble", "version": "1.9.0", "released": "2026-04-06", "seenAt": "2026-10-04T16:38:15.132468707Z" } ], "githubStars": 15, "npmWeekly": 9722, "pypiWeekly": 186, "securityTxt": { "url": "https://resemble.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:39.395527714Z" }, "llmsTxt": { "url": "https://docs.resemble.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:10.652641425Z" }, "domain": { "domain": "resemble.ai", "registered": "2018-11-12", "source": "https://rdap.identitydigital.services/rdap/domain/resemble.ai", "checkedAt": "2026-10-04T13:05:20.701682078Z" }, "pages": [ { "url": "https://www.resemble.ai/changelog", "kind": "deprecations", "status": 304, "checkedAt": "2026-10-04T15:51:50.742467031Z", "changedAt": "2026-10-02T15:27:53.988683525Z", "fingerprint": "76a0cb1bcf1b" }, { "url": "https://www.resemble.ai/privacy-policy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:51:52.7837749Z", "changedAt": "2026-10-02T15:27:56.034606073Z", "fingerprint": "356ce0463869" }, { "url": "https://www.resemble.ai/terms-of-service", "kind": "terms", "status": 304, "checkedAt": "2026-10-04T15:51:54.78203578Z", "changedAt": "2026-10-02T15:27:58.03595641Z", "fingerprint": "427f88ce488d" } ], "updatedAt": "2026-10-04T23:48:15.015848466Z" } }, "summary": "Deepgram Text-to-Speech (Aura-2, Flux TTS) has a score of 73 (BB) against Resemble AI Text-to-Speech API's 50.6 (D). Both do speech tts. The largest gap is maintenance \u0026 community, 42 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/deepgram-tts-vs-resemble-ai-tts", "json": "https://www.anchorterminal.com/compare/deepgram-tts-vs-resemble-ai-tts.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/deepgram-tts-vs-resemble-ai-tts.md", "slim": "https://www.anchorterminal.com/compare/deepgram-tts-vs-resemble-ai-tts.min.md" }, "markdown": "Deepgram Text-to-Speech (Aura-2, Flux TTS) has a score of 73 (BB) against Resemble AI Text-to-Speech API's 50.6 (D). Both do speech tts. The largest gap is maintenance \u0026 community, 42 points.\n\n- Deepgram Text-to-Speech (Aura-2, Flux TTS): grade BB, 73/100, rank #63 of 452. Markdown https://www.anchorterminal.com/tools/deepgram-tts.md · JSON https://www.anchorterminal.com/api/v1/tools/deepgram-tts.json\n- Resemble AI Text-to-Speech API: grade D, 50.6/100, rank #357 of 452. Markdown https://www.anchorterminal.com/tools/resemble-ai-tts.md · JSON https://www.anchorterminal.com/api/v1/tools/resemble-ai-tts.json\n\n## Which one, for what\n\nPick Deepgram Text-to-Speech (Aura-2, Flux TTS) for schema \u0026 documentation (+20), agent ergonomics (+36), security \u0026 auth (+22), payments \u0026 pricing (+25), maintenance \u0026 community (+42), transparency \u0026 trust (+7).\n\nPick Resemble AI Text-to-Speech API for reliability (+5).\n\n## Score by category\n\n| Category | Weight | Deepgram Text-to-Speech (Aura-2, Flux TTS) | Resemble AI Text-to-Speech API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 70 | 75 | Resemble AI Text-to-Speech API +5 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 95 | 75 | Deepgram Text-to-Speech (Aura-2, Flux TTS) +20 |\n| Agent ergonomics | 13% (16.2 this run) | 82 | 46 | Deepgram Text-to-Speech (Aura-2, Flux TTS) +36 |\n| Security \u0026 auth | 14% (17.5 this run) | 70 | 48 | Deepgram Text-to-Speech (Aura-2, Flux TTS) +22 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 15 | Deepgram Text-to-Speech (Aura-2, Flux TTS) +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 73 | 31 | Deepgram Text-to-Speech (Aura-2, Flux TTS) +42 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 75 | 68 | Deepgram Text-to-Speech (Aura-2, Flux TTS) +7 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **73 · BB** | **50.6 · D** | |\n\n## Facts side by side\n\n| Fact | Deepgram Text-to-Speech (Aura-2, Flux TTS) | Resemble AI Text-to-Speech API |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Deepgram | Resemble AI |\n| Hosted endpoint | `https://api.deepgram.com/v1` | `https://app.resemble.ai/api/v2` |\n| Transports | HTTP, Streamable HTTP, stdio, SSE (legacy) | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | MIT (SDKs) | none |\n| Tools exposed | none | none |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-29 | 2026-06-30 |\n| Popularity | 468 stars, 1.1M npm/wk, 805k PyPI/wk | 15 stars, 8.1k npm/wk |\n| Agent reviews | 3.5/5 (2) | 2/5 (2) |\n\n## Verdicts\n\n**Deepgram Text-to-Speech (Aura-2, Flux TTS).** OpenAPI 3.1 and AsyncAPI files, llms.txt and Markdown pages. Requests can be kept for training unless each one sets `mip_opt_out=true`.\n\n**Resemble AI Text-to-Speech API.** OpenAPI file in JSON and YAML, llms.txt and Markdown pages. Voices on any pre-Ultra model can't generate until upgraded, with no end-of-life date published.\n\n## Before you call either\n\n### Deepgram Text-to-Speech (Aura-2, Flux TTS)\n\n1. Set `mip_opt_out=true` on every request if the text mustn't be kept for training.\n2. Split Aura-2 REST text under 2,000 characters or expect a 413.\n3. Pass `model` on `/v2/speak`, where it's required.\n4. Strip SSML before sending, since it's removed with an `INPUT_MARKUP_STRIPPED` warning.\n5. Back off exponentially on 429 and keep traffic in one project.\n\n### Resemble AI Text-to-Speech API\n\n1. Check the voice's model before synthesis, since voices on pre-Ultra models fail until upgraded.\n2. Keep each synchronous request under 2,000 characters.\n3. Decode `audio_content` from base64 on `/synthesize`, or call `/stream` for raw WAV chunks.\n4. Send `Authorization: Bearer`, since some doc examples leave out the prefix.\n5. Log the request ID with every failure, since the error body has no code.\n\n## Other comparisons with Deepgram Text-to-Speech (Aura-2, Flux TTS) or Resemble AI Text-to-Speech API\n\n- [Amazon Polly vs Deepgram Text-to-Speech (Aura-2, Flux TTS)](https://www.anchorterminal.com/compare/amazon-polly-vs-deepgram-tts.md)\n- [Amazon Polly vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/amazon-polly-vs-resemble-ai-tts.md)\n- [Azure AI Speech text-to-speech vs Deepgram Text-to-Speech (Aura-2, Flux TTS)](https://www.anchorterminal.com/compare/azure-text-to-speech-vs-deepgram-tts.md)\n- [Azure AI Speech text-to-speech vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/azure-text-to-speech-vs-resemble-ai-tts.md)\n- [Cartesia Sonic TTS API + MCP vs Deepgram Text-to-Speech (Aura-2, Flux TTS)](https://www.anchorterminal.com/compare/cartesia-tts-vs-deepgram-tts.md)\n- [Cartesia Sonic TTS API + MCP vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/cartesia-tts-vs-resemble-ai-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs ElevenLabs Text to Speech API + MCP](https://www.anchorterminal.com/compare/deepgram-tts-vs-elevenlabs-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Murf TTS API + MCP](https://www.anchorterminal.com/compare/deepgram-tts-vs-murf-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs PlayHT Text-to-Speech API](https://www.anchorterminal.com/compare/deepgram-tts-vs-playht-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/deepgram-tts-vs-rime-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Soniox Text-to-Speech](https://www.anchorterminal.com/compare/deepgram-tts-vs-soniox-tts.md)\n- [ElevenLabs Text to Speech API + MCP vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/elevenlabs-tts-vs-resemble-ai-tts.md)\n- [Murf TTS API + MCP vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/murf-tts-vs-resemble-ai-tts.md)\n- [PlayHT Text-to-Speech API vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/playht-tts-vs-resemble-ai-tts.md)\n- [Resemble AI Text-to-Speech API vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts.md)\n- [Resemble AI Text-to-Speech API vs Soniox Text-to-Speech](https://www.anchorterminal.com/compare/resemble-ai-tts-vs-soniox-tts.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Resemble AI Text-to-Speech API", "url": "" } ], "description": "Deepgram Text-to-Speech (Aura-2, Flux TTS) has a score of 73 (BB) against Resemble AI Text-to-Speech API's 50.6 (D). Both do speech tts. The largest gap is maintenance \u0026 community, 42 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Deepgram Text-to-Speech (Aura-2, Flux TTS) BB 73", "Resemble AI Text-to-Speech API D 50.6", "scores" ], "h1": "Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Resemble AI Text-to-Speech API", "image": "https://www.anchorterminal.com/assets/og/compare-deepgram-tts-vs-resemble-ai-tts.png", "path": "/compare/deepgram-tts-vs-resemble-ai-tts", "published": "2026-10-01", "section": "tools", "title": "Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Resemble AI…", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/compare/deepgram-tts-vs-resemble-ai-tts" }, "tokens": { "markdown": 1800, "slim": 380 }, "version": 1 }