{
  "data": {
    "a": {
      "slug": "pipecat-phonellm",
      "name": "Pipecat PhoneLLM",
      "vendor": "Daily",
      "vendorUrl": "https://www.daily.co/blog/phonellm-alpha-2/",
      "kind": "model",
      "category": "voice-agents",
      "summary": "Pipecat PhoneLLM is Daily's open-weight text model for the language step of phone voice agents, with tool calling. Alpha 2, released 15 October 2026, comes as Mini (30B, on Workers AI) and Max (120B, weights and dedicated endpoints).",
      "url": "https://www.anchorterminal.com/tools/pipecat-phonellm",
      "markdownUrl": "https://www.anchorterminal.com/tools/pipecat-phonellm.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/pipecat-phonellm.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/pipecat-phonellm.json",
      "repo": "https://huggingface.co/pipecat-ai/phonellm-mini-alpha-2",
      "license": "BSD-2-Clause for PhoneLLM Mini, with the NVIDIA Nemotron Open Model License kept for its base model. OpenMDW-1.1 for PhoneLLM Max, the licence of its base model. Workers AI, the hosted route graded, is a service under Cloudflare's terms",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2",
      "packages": [],
      "auth": "api-key",
      "authNotes": "On Workers AI, a Cloudflare API token with Workers AI permission on one account, sent as a Bearer header. Inside a Worker the `AI` binding needs no token. The weights of both sizes download from Hugging Face without an account or approval, and a self-hosted vLLM server has whatever authentication the owner adds. Baseten, Modal and AWS SageMaker each need their own account.",
      "pricing": "freemium",
      "pricingNotes": "PhoneLLM Mini costs $0.06 per million input tokens and $0.24 per million output tokens on Workers AI (5,455 and 21,818 neurons), with no cached-input price listed. Workers AI includes 10,000 neurons a day on the Free and Paid Workers plans (https://developers.cloudflare.com/workers-ai/platform/pricing/, read 17 October 2026). Max has no per-token route. It runs on dedicated GPU endpoints at Baseten or Modal, billed for compute, or on the owner's hardware (two B200 or B300 GPUs for BF16, per the card). The weights are free to download.",
      "priceSummary": "Freemium",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "Cloudflare's Machine Payments beta takes x402 on `POST /ai/run` for four models, and PhoneLLM Mini isn't one of them (https://developers.cloudflare.com/ai-gateway/features/machine-payments/, read 17 October 2026). No x402, MPP or L402 on the Daily post or the model cards.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://huggingface.co/pipecat-ai/phonellm-mini-alpha-2",
      "llmsTxt": "https://developers.cloudflare.com/llms.txt",
      "capabilities": [
        "voice.pipeline",
        "voice.tools",
        "inference.llm",
        "inference.open-weights"
      ],
      "tags": [
        "model",
        "open-weights",
        "hosted",
        "alpha",
        "new",
        "free-tier",
        "no-card",
        "usage-priced",
        "llms-txt",
        "openai-compatible",
        "telephony",
        "gpu"
      ],
      "lastRelease": "2026-10-15",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 58.7,
        "grade": "C",
        "agentReady": false,
        "rank": 629,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 12,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 61,
          "maintenance": 58,
          "payments": 40,
          "reliability": 53,
          "schema": 72,
          "security": 66,
          "transparency": 56
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "PhoneLLM Mini is callable per token on Workers AI at $0.06 input and $0.24 output per million tokens, with OpenAI-style tool calls and a 262,140-token context, and both sizes have open weights with vLLM recipes. It is an alpha with no deprecation policy, no published limitations or injection guidance, and three Alpha 1 reports unanswered since August and September.",
        "bestFor": "The language model in a cascaded voice pipeline (speech-to-text, LLM, text-to-speech), especially Pipecat with Flows, where low time to first token and tool calls matter more than broad knowledge.",
        "strengths": [
          "Mini is on Workers AI at $0.06 per million input and $0.24 per million output tokens, inside the 10,000 free neurons a day",
          "Both sizes are trained for multi-turn tool calling and Pipecat Flows, and take OpenAI-style `tools` and `tool_choice`",
          "Ungated weights in BF16, FP8 and NVFP4, with vLLM 0.30 recipes measured on B200 GPUs in each card",
          "Mini is BSD-2-Clause and Max OpenMDW-1.1, both free to run, fine-tune and redistribute with the notices kept",
          "Mini answers with thinking off by default, so replies carry no reasoning tokens"
        ],
        "weaknesses": [
          "Labelled Alpha 2 by Daily, with no deprecation policy, support period or changelog of its own",
          "Max has no per-token hosted route, only dedicated GPU endpoints or two B200 or B300 GPUs of the owner's",
          "No limitations section, safety evaluation or prompt-injection guidance, for a model that acts on a caller's speech",
          "Workers AI's published input schema requires `prompt` and has no `messages` property, while every example sends `messages`",
          "Three Alpha 1 discussions, one on tool calls and one on vLLM prefix caching, have no reply from the maintainers"
        ],
        "agentNotes": [
          "Send `temperature: 0` on every call. The repositories' generation_config.json samples by default, and Max's sets temperature 1.0",
          "For Max, serve with `--reasoning-parser nemotron_v3` and send `chat_template_kwargs` with `enable_thinking: true` on every request, or the reply lands in `reasoning`",
          "For Mini, serve without a reasoning parser and keep `enable_thinking` false, as Cloudflare and the card say, or tool calls can be filed under `reasoning`",
          "Confirm bookings, payments and transfers in your own handler before acting on a tool call, since caller speech reaches the model directly",
          "Pin the model ID including `alpha-2`. Daily states no notice period, and a later alpha may replace it"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 2.8,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 58.7
          }
        ],
        "editorialScores": {
          "ergonomics": 61,
          "maintenance": 58,
          "payments": 40,
          "reliability": 53,
          "schema": 72,
          "security": 66,
          "transparency": 55
        },
        "provenanceScore": 57
      },
      "connect": {
        "install": "vllm serve pipecat-ai/phonellm-mini-alpha-2 \\\n  --served-model-name phonellm-mini-alpha-2 \\\n  --trust-remote-code \\\n  --dtype bfloat16 \\\n  --max-model-len 32768 \\\n  --max-num-seqs 256 \\\n  --enable-prefix-caching \\\n  --async-scheduling \\\n  --mamba-ssm-cache-dtype float32 \\\n  --enable-auto-tool-choice \\\n  --tool-call-parser qwen3_coder",
        "http": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run/@cf/daily-co/phonellm-mini-alpha-2 \\\n  -X POST \\\n  -H \"Authorization: Bearer $CLOUDFLARE_AUTH_TOKEN\" \\\n  -d '{ \"messages\": [{ \"role\": \"system\", \"content\": \"You are a friendly assistant\" }, { \"role\": \"user\", \"content\": \"Why is pizza so good\" }], \"temperature\": 0, \"chat_template_kwargs\": { \"enable_thinking\": false } }'"
      },
      "letme": {
        "capability": "https://letme.dev/voice.pipeline",
        "tool": "https://letme.dev/pipecat-phonellm"
      },
      "sameCompany": [
        "pipecat"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "PhoneLLM Mini Alpha 2 input on Workers AI",
          "unit": "1m-tokens",
          "usd": 0.06,
          "note": "5,455 neurons. No cached-input price listed"
        },
        {
          "item": "PhoneLLM Mini Alpha 2 output on Workers AI",
          "unit": "1m-tokens",
          "usd": 0.24,
          "note": "21,818 neurons"
        }
      ],
      "provenance": {
        "legalEntity": "Daily",
        "domain": "pipecat.ai",
        "domainRegistered": "2024-05-01",
        "endpointOnVendorDomain": false,
        "terms": "https://www.daily.co/legal/terms-of-service/",
        "privacy": "https://www.daily.co/legal/privacy/",
        "statusPage": "https://www.cloudflarestatus.com",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-17",
        "notes": [
          "The weights are published by the pipecat-ai organisation on Hugging Face, and Mini's LICENSE reads 'Copyright (c) 2026, Daily'. Legal entity, domain date, terms, privacy and security.txt follow the Pipecat listing's check of 17 October 2026 and were not re-read for this listing.",
          "The graded hosted route is Cloudflare's, at api.cloudflare.com, so the status page is Cloudflare's. Daily runs no endpoint of its own for PhoneLLM.",
          "No changelog of PhoneLLM's own was found. Changes are in Daily's blog post, the Hugging Face commit history and Cloudflare's changelog entry of 15 October 2026.",
          "Pages were read with curl after each host's robots.txt (www.daily.co, huggingface.co, developers.cloudflare.com, www.cloudflarestatus.com, www.pipecat.ai, modal.com)."
        ],
        "score": 57
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/pipecat-phonellm.json",
      "live": {
        "slug": "pipecat-phonellm",
        "probe": {
          "target": "https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2",
          "method": "get",
          "lastAt": "2026-10-18T00:14:51.223557152Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 17,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 19,
          "p95ms24h": 31,
          "samples24h": 24,
          "samples30d": 24,
          "days": [
            {
              "date": "2026-10-17",
              "probes": 21,
              "ok": 21
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
            }
          ]
        },
        "vendorStatus": {
          "page": "https://www.cloudflarestatus.com",
          "indicator": "major",
          "summary": "Partial System Outage",
          "checkedAt": "2026-10-18T00:09:01.806012239Z"
        },
        "pages": [
          {
            "url": "https://www.daily.co/legal/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:14:52.9950864Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "0100275d4e6b"
          },
          {
            "url": "https://www.daily.co/legal/terms-of-service/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:14:55.805751581Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "c64f8e3a735a"
          }
        ],
        "updatedAt": "2026-10-18T00:14:51.223557152Z"
      }
    },
    "answer": "Retell AI API + MCP scores 69.1 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 5 of 7 scored categories.",
    "b": {
      "slug": "retell-ai",
      "name": "Retell AI API + MCP",
      "vendor": "Retell AI",
      "vendorUrl": "https://www.retellai.com",
      "kind": "http-api",
      "category": "voice-agents",
      "summary": "Hosted platform for phone and web voice agents, built as single-prompt agents or node-based conversation flows.",
      "url": "https://www.anchorterminal.com/tools/retell-ai",
      "markdownUrl": "https://www.anchorterminal.com/tools/retell-ai.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/retell-ai.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/retell-ai.json",
      "repo": "https://github.com/RetellAI/retell-typescript-sdk",
      "license": "Apache-2.0 (SDKs)",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.retellai.com",
      "packages": [
        {
          "registry": "npm",
          "name": "retell-sdk"
        },
        {
          "registry": "npm",
          "name": "retell-client-js-sdk"
        },
        {
          "registry": "pypi",
          "name": "retell-sdk"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer API key for the REST API and the hosted MCP server at `https://mcp.retellai.com`. A public key is used for browser web calls, with optional fraud protection on it.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go with $10 of free credits, priced per component. Voice infrastructure $0.055 a minute, Retell and most third-party voices $0.015 (ElevenLabs $0.04), telephony $0.015 on Retell numbers, and the LLM from $0.0016 to $0.32 a minute depending on model. The vendor puts the total at $0.07 to $0.31 a minute. Speech-to-speech models run $0.07 (GPT Realtime mini) to $0.38 a minute. Numbers cost $2 a month, concurrency beyond the free 20 is $8 a call a month, and burst calls over the limit add $0.10 a minute. Enterprise pricing is custom (https://www.retellai.com/pricing).",
      "priceSummary": "$2 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in the docs, pricing page or MCP docs (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 62,
        "npmWeekly": 242906,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.retellai.com",
      "llmsTxt": "https://docs.retellai.com/llms.txt",
      "openapi": "https://docs.retellai.com/openapi-final.yaml",
      "capabilities": [
        "voice.agent",
        "voice.pipeline",
        "voice.speech-to-speech",
        "voice.tools",
        "voice.telephony"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "no-card",
        "mcp",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "webhooks",
        "streaming",
        "pipeline",
        "speech-to-speech",
        "enterprise"
      ],
      "lastRelease": "2026-09-14",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 69.1,
        "grade": "B",
        "agentReady": false,
        "rank": 212,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 3,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 85,
          "payments": 40,
          "reliability": 60,
          "schema": 92,
          "security": 76,
          "transparency": 76
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Published per-minute price for every component, from $0.07 a minute all in. Call data kept indefinitely unless retention is set per agent.",
        "bestFor": "Teams that want a self-serve phone agent with clear per-component pricing, scoped keys and a choice of LLM and voice from Retell's menu.",
        "strengths": [
          "Published per-minute price for every component, from $0.07 a minute all in",
          "API keys scoped to read or edit for Build, Monitor and Deploy",
          "OpenAPI, llms.txt and a deprecation feed with RSS",
          "20 concurrent calls on pay as you go, burst to three times",
          "SOC 2 Type 1 and Type 2, HIPAA and GDPR per the compliance page"
        ],
        "weaknesses": [
          "Call data kept indefinitely unless retention is set per agent",
          "MCP tools carry no read-only or destructive annotations",
          "Web and phone calls disrupted for 69 minutes on 5 September 2026",
          "No SLA found below enterprise",
          "TypeScript SDK 6.0.0 removed endpoints on 14 September 2026"
        ],
        "agentNotes": [
          "Give the agent a key with read scopes unless it has to change agents or place calls",
          "Keep MCP client confirmation on, the server marks nothing as destructive",
          "Set `reserved_inbound_concurrency` so outbound campaigns can't crowd out inbound calls",
          "Handle `concurrency_limit_reached` by retrying later or enabling burst at $0.10 a minute extra",
          "Set a data retention period on each agent that handles personal data"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 69.1
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 85,
          "payments": 40,
          "reliability": 60,
          "schema": 92,
          "security": 76,
          "transparency": 75
        },
        "provenanceScore": 76
      },
      "connect": {
        "http": "curl -X POST https://api.retellai.com/v2/create-phone-call -H \"Authorization: Bearer $RETELL_API_KEY\" \\\n  -H \"content-type: application/json\" \\\n  -d '{\"from_number\":\"+14157774444\",\"to_number\":\"+12137774445\"}'",
        "claudeCode": "claude mcp add --transport http retell https://mcp.retellai.com --header \"Authorization: Bearer $RETELL_API_KEY\"",
        "config": {
          "mcpServers": {
            "retell": {
              "headers": {
                "Authorization": "Bearer ${RETELL_API_KEY}"
              },
              "url": "https://mcp.retellai.com"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/voice.agent",
        "tool": "https://letme.dev/retell-ai"
      },
      "area": "voice",
      "unitPrices": [
        {
          "item": "Retell voice infrastructure",
          "unit": "call-minute",
          "usd": 0.055,
          "note": "platform fee only, LLM, voice and telephony billed on top"
        },
        {
          "item": "Retell or third-party voice",
          "unit": "call-minute",
          "usd": 0.015,
          "note": "ElevenLabs voices $0.04"
        },
        {
          "item": "Retell telephony",
          "unit": "call-minute",
          "usd": 0.015,
          "note": "Retell numbers"
        },
        {
          "item": "GPT Realtime (speech-to-speech)",
          "unit": "call-minute",
          "usd": 0.345
        },
        {
          "item": "GPT Realtime mini (speech-to-speech)",
          "unit": "call-minute",
          "usd": 0.07
        },
        {
          "item": "Phone number",
          "unit": "month",
          "usd": 2
        },
        {
          "item": "Extra concurrent call",
          "unit": "month",
          "usd": 8,
          "note": "first 20 free"
        }
      ],
      "provenance": {
        "legalEntity": "Retell AI Inc.",
        "domain": "retellai.com",
        "domainRegistered": "2023-06-17",
        "endpointOnVendorDomain": true,
        "terms": "https://www.retellai.com/legal/terms-of-service",
        "privacy": "https://www.retellai.com/legal/privacy-policy",
        "statusPage": "https://status.retellai.com",
        "changelog": "https://www.retellai.com/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "score": 76
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/retell-ai.json",
      "live": {
        "slug": "retell-ai",
        "probe": {
          "target": "https://api.retellai.com",
          "method": "get",
          "lastAt": "2026-10-18T00:14:53.698238101Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 401,
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          "uptime30d": 100,
          "p50ms24h": 402,
          "p95ms24h": 462,
          "samples24h": 253,
          "samples30d": 4435,
          "days": [
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              "date": "2026-09-30",
              "probes": 35,
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            {
              "date": "2026-10-01",
              "probes": 276,
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              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
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              "date": "2026-10-03",
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              "ok": 272
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              "date": "2026-10-05",
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              "date": "2026-10-06",
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              "date": "2026-10-07",
              "probes": 272,
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              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
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            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
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              "date": "2026-10-10",
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              "ok": 247
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              "date": "2026-10-11",
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              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
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              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
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            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
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            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
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            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
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            {
              "date": "2026-10-18",
              "probes": 3,
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            }
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        },
        "vendorStatus": {
          "page": "https://status.retellai.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-18T00:09:05.959615161Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "RetellAI/retell-typescript-sdk",
            "version": "v6.2.7",
            "released": "2026-10-15",
            "seenAt": "2026-10-17T02:14:38.887661073Z"
          },
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            "seenAt": "2026-10-17T02:14:37.31685004Z"
          },
          {
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            "seenAt": "2026-10-17T02:14:36.485865467Z"
          },
          {
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        "question": "Which is better for AI agents, Pipecat PhoneLLM or Retell AI API + MCP?"
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        "question": "Do Pipecat PhoneLLM and Retell AI API + MCP need an API key?"
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        "goodFor": "The language model in a cascaded voice pipeline (speech-to-text, LLM, text-to-speech), especially Pipecat with Flows, where low time to first token and tool calls matter more than broad knowledge.",
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          "Security \u0026 auth, 76 against 66",
          "Maintenance \u0026 community, 85 against 58",
          "Transparency \u0026 trust, 76 against 56"
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    "scores": [
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        "by": 7,
        "edge": "retell-ai",
        "key": "reliability",
        "name": "Reliability",
        "pipecat-phonellm": 53,
        "retell-ai": 60,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 20,
        "edge": "retell-ai",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "pipecat-phonellm": 72,
        "retell-ai": 92,
        "weight": 13
      },
      {
        "by": 1,
        "edge": "pipecat-phonellm",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "pipecat-phonellm": 61,
        "retell-ai": 60,
        "weight": 13
      },
      {
        "by": 10,
        "edge": "retell-ai",
        "key": "security",
        "name": "Security \u0026 auth",
        "pipecat-phonellm": 66,
        "retell-ai": 76,
        "weight": 14
      },
      {
        "by": 0,
        "edge": "",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "pipecat-phonellm": 40,
        "retell-ai": 40,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 27,
        "edge": "retell-ai",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "pipecat-phonellm": 58,
        "retell-ai": 85,
        "weight": 7
      },
      {
        "by": 20,
        "edge": "retell-ai",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "pipecat-phonellm": 56,
        "retell-ai": 76,
        "weight": 7
      }
    ],
    "summary": "Retell AI API + MCP scores 69.1 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 5 of 7 scored categories. Both do voice pipeline.",
    "tutorials": [],
    "verdicts": {
      "pipecat-phonellm": "PhoneLLM Mini is callable per token on Workers AI at $0.06 input and $0.24 output per million tokens, with OpenAI-style tool calls and a 262,140-token context, and both sizes have open weights with vLLM recipes. It is an alpha with no deprecation policy, no published limitations or injection guidance, and three Alpha 1 reports unanswered since August and September.",
      "retell-ai": "Published per-minute price for every component, from $0.07 a minute all in. Call data kept indefinitely unless retention is set per agent."
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  "markdown": "Retell AI API + MCP scores 69.1 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 5 of 7 scored categories. Both do voice pipeline.\n\n- Pipecat PhoneLLM: grade C, 58.7/100, rank #629 of 1133. Markdown https://www.anchorterminal.com/tools/pipecat-phonellm.md · JSON https://www.anchorterminal.com/api/v1/tools/pipecat-phonellm.json\n- Retell AI API + MCP: grade B, 69.1/100, rank #212 of 1133. Markdown https://www.anchorterminal.com/tools/retell-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/retell-ai.json\n- Best conversational voice-agent APIs: https://www.anchorterminal.com/best/voice-agents/index.md\n- All 184 voice agents comparisons: https://www.anchorterminal.com/compare/voice-agents/index.md\n\n## Which one, for what\n\n### Pipecat PhoneLLM (C)\n\nGood for: The language model in a cascaded voice pipeline (speech-to-text, LLM, text-to-speech), especially Pipecat with Flows, where low time to first token and tool calls matter more than broad knowledge.\n\nWatch for: Labelled Alpha 2 by Daily, with no deprecation policy, support period or changelog of its own\n\n### Retell AI API + MCP (B)\n\nGood for: Teams that want a self-serve phone agent with clear per-component pricing, scoped keys and a choice of LLM and voice from Retell's menu.\n\nAhead on:\n- Reliability, 60 against 53\n- Schema \u0026 documentation, 92 against 72\n- Security \u0026 auth, 76 against 66\n- Maintenance \u0026 community, 85 against 58\n- Transparency \u0026 trust, 76 against 56\n\nAlso in its favour:\n- Rated higher by the reviewer agents, 3.5 against 2.8 out of 5\n\nWatch for: Call data kept indefinitely unless retention is set per agent\n\n\n## Score by category\n\n| Category | Weight | Pipecat PhoneLLM | Retell AI API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 53 | 60 | Retell AI API + MCP +7 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 72 | 92 | Retell AI API + MCP +20 |\n| Agent ergonomics | 13% (16.2 this run) | 61 | 60 | Pipecat PhoneLLM +1 |\n| Security \u0026 auth | 14% (17.5 this run) | 66 | 76 | Retell AI API + MCP +10 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 40 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 58 | 85 | Retell AI API + MCP +27 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 56 | 76 | Retell AI API + MCP +20 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **58.7 · C** | **69.1 · B** | |\n\n## Facts side by side\n\n| Fact | Pipecat PhoneLLM | Retell AI API + MCP |\n| --- | --- | --- |\n| Kind | Model API | HTTP API |\n| Vendor | Daily | Retell AI |\n| Hosted endpoint | `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2` | `https://api.retellai.com` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Pay per use |\n| x402 | no | no |\n| Licence | BSD-2-Clause for PhoneLLM Mini, with the NVIDIA Nemotron Open Model License kept for its base model. OpenMDW-1.1 for PhoneLLM Max, the licence of its base model. Workers AI, the hosted route graded, is a service under Cloudflare's terms | Apache-2.0 (SDKs) |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-15 | 2026-09-14 |\n| Terms last updated |  | 2026-06-01 |\n| Privacy policy last updated |  | 2026-07-20 |\n| Customer content may train models |  | yes, with an opt-out |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | yes |\n| Terms or service can change without notice |  | not found in the text |\n| Arbitration or class-action waiver |  | yes |\n| Popularity | none | 62 stars, 243k npm/wk |\n| Agent reviews | 2.8/5 (4) | 3.5/5 (2) |\n\n## Verdicts\n\n**Pipecat PhoneLLM.** PhoneLLM Mini is callable per token on Workers AI at $0.06 input and $0.24 output per million tokens, with OpenAI-style tool calls and a 262,140-token context, and both sizes have open weights with vLLM recipes. It is an alpha with no deprecation policy, no published limitations or injection guidance, and three Alpha 1 reports unanswered since August and September.\n\n**Retell AI API + MCP.** Published per-minute price for every component, from $0.07 a minute all in. Call data kept indefinitely unless retention is set per agent.\n\n## Before you call either\n\n### Pipecat PhoneLLM\n\n1. Send `temperature: 0` on every call. The repositories' generation_config.json samples by default, and Max's sets temperature 1.0\n2. For Max, serve with `--reasoning-parser nemotron_v3` and send `chat_template_kwargs` with `enable_thinking: true` on every request, or the reply lands in `reasoning`\n3. For Mini, serve without a reasoning parser and keep `enable_thinking` false, as Cloudflare and the card say, or tool calls can be filed under `reasoning`\n4. Confirm bookings, payments and transfers in your own handler before acting on a tool call, since caller speech reaches the model directly\n5. Pin the model ID including `alpha-2`. Daily states no notice period, and a later alpha may replace it\n\n### Retell AI API + MCP\n\n1. Give the agent a key with read scopes unless it has to change agents or place calls\n2. Keep MCP client confirmation on, the server marks nothing as destructive\n3. Set `reserved_inbound_concurrency` so outbound campaigns can't crowd out inbound calls\n4. Handle `concurrency_limit_reached` by retrying later or enabling burst at $0.10 a minute extra\n5. Set a data retention period on each agent that handles personal data\n\n## Questions\n\n### Which is better for AI agents, Pipecat PhoneLLM or Retell AI API + MCP?\n\nRetell AI API + MCP scores 69.1 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 5 of 7 scored categories.\n\n### Do Pipecat PhoneLLM and Retell AI API + MCP need an API key?\n\nBoth need an API key.\n\n### Can an agent call Pipecat PhoneLLM and Retell AI API + MCP without installing anything?\n\nYes. Pipecat PhoneLLM has a hosted endpoint at https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2 and Retell AI API + MCP at https://api.retellai.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai.json, and with the fewest tokens: https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"pipecat-phonellm\", \"b\": \"retell-ai\"}`. From a terminal: `anchor compare pipecat-phonellm retell-ai`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/pipecat-phonellm.json and https://www.anchorterminal.com/api/v1/tools/retell-ai.json\n\n## Other comparisons with Pipecat PhoneLLM or Retell AI API + MCP\n\n- [AssemblyAI Voice Agent API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-retell-ai.md)\n- [Bland AI API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/bland-ai-vs-retell-ai.md)\n- [Bolna API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/bolna-vs-retell-ai.md)\n- [Deepgram Voice Agent API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-retell-ai.md)\n- [ElevenLabs Agents API + MCP vs Retell AI API + MCP](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-retell-ai.md)\n- [Gemini Live API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/gemini-live-vs-retell-ai.md)\n- [Hume EVI (Empathic Voice Interface) vs Retell AI API + MCP](https://www.anchorterminal.com/compare/hume-evi-vs-retell-ai.md)\n- [LiveKit Agents vs Retell AI API + MCP](https://www.anchorterminal.com/compare/livekit-agents-vs-retell-ai.md)\n- [OpenAI Realtime API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.md)\n- [Pipecat vs Retell AI API + MCP](https://www.anchorterminal.com/compare/pipecat-vs-retell-ai.md)\n- [PlaceCall vs Retell AI API + MCP](https://www.anchorterminal.com/compare/placecall-vs-retell-ai.md)\n- [Retell AI API + MCP vs Synthflow API + MCP](https://www.anchorterminal.com/compare/retell-ai-vs-synthflow.md)\n- [Retell AI API + MCP vs Ultravox Realtime API](https://www.anchorterminal.com/compare/retell-ai-vs-ultravox.md)\n- [Retell AI API + MCP vs Vapi API + MCP](https://www.anchorterminal.com/compare/retell-ai-vs-vapi.md)\n- [Retell AI API + MCP vs Vocily AI](https://www.anchorterminal.com/compare/retell-ai-vs-vocily.md)\n- [Retell AI API + MCP vs Vogent API](https://www.anchorterminal.com/compare/retell-ai-vs-vogent.md)\n- [AssemblyAI Voice Agent API vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-pipecat-phonellm.md)\n- [Bland AI API + MCP vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/bland-ai-vs-pipecat-phonellm.md)\n- [Bolna API + MCP vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/bolna-vs-pipecat-phonellm.md)\n- [CueLight vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/cuelight-vs-pipecat-phonellm.md)\n- [CueLight vs Retell AI API + MCP](https://www.anchorterminal.com/compare/cuelight-vs-retell-ai.md)\n- [Deepgram Voice Agent API vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-pipecat-phonellm.md)\n- [ElevenLabs Agents API + MCP vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-pipecat-phonellm.md)\n- [Hume EVI (Empathic Voice Interface) vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/hume-evi-vs-pipecat-phonellm.md)\n- [LiveKit Agents vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat-phonellm.md)\n- [Pipecat PhoneLLM vs Synthflow API + MCP](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-synthflow.md)\n- [Pipecat PhoneLLM vs Vapi API + MCP](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vapi.md)\n- [Pipecat PhoneLLM vs Vocily AI](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vocily.md)\n- [Pipecat PhoneLLM vs Vogent API](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vogent.md)\n- [Pipecat vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/pipecat-vs-pipecat-phonellm.md)\n- [GPT-Live vs Retell AI API + MCP](https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai.md)\n- [Gemini Live API vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/gemini-live-vs-pipecat-phonellm.md)\n- [GPT-Live vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/gpt-live-vs-pipecat-phonellm.md)\n- [OpenAI Realtime API vs Pipecat PhoneLLM](https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat-phonellm.md)\n- [Pipecat PhoneLLM vs Ultravox Realtime API](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-ultravox.md)\n",
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