{
  "data": {
    "a": {
      "slug": "openai-realtime",
      "name": "OpenAI Realtime API",
      "vendor": "OpenAI",
      "vendorUrl": "https://openai.com",
      "kind": "http-api",
      "category": "voice-agents",
      "summary": "OpenAI's Realtime API runs spoken conversations with speech-to-speech models such as `gpt-realtime-2.1`. Clients connect over WebRTC, WebSocket or SIP, and sessions support interruptions, function calling and remote MCP tools.",
      "url": "https://www.anchorterminal.com/tools/openai-realtime",
      "markdownUrl": "https://www.anchorterminal.com/tools/openai-realtime.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/openai-realtime.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/openai-realtime.json",
      "repo": "https://github.com/openai/openai-agents-js",
      "license": "Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.openai.com/v1/realtime",
      "packages": [
        {
          "registry": "npm",
          "name": "@openai/agents"
        },
        {
          "registry": "npm",
          "name": "@openai/agents-realtime"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve API key from platform.openai.com, sent as a Bearer header on server WebSocket connections and call-control requests. For browsers and phones, a server calls `POST /v1/realtime/client_secrets` for a client secret (`ek_`) that lasts 10 seconds to 2 hours, 10 minutes by default, and can start several sessions until it expires. The browser WebSocket example passes the secret as a subprotocol. SIP calls are tied to a project by the project ID in the SIP address.",
      "pricing": "usage",
      "pricingNotes": "Per 1M tokens on `gpt-realtime-2.1`. Audio $32.00 in, $0.40 cached and $64.00 out, text $4.00 in and $24.00 out, image $5.00 in. `gpt-realtime-2.1-mini` is $10.00 and $20.00 for audio. Each response re-sends the whole conversation, and input transcription is billed separately. Usage tiers start at $5 of credit purchases. Whether the Free tier covers Realtime models was not established (https://developers.openai.com/api/docs/pricing.md, checked 2026-10-09).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the Realtime guides, the pricing page or the OpenAPI file (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://developers.openai.com/api/docs/guides/realtime",
      "llmsTxt": "https://developers.openai.com/api/docs/llms.txt",
      "openapi": "https://github.com/openai/openai-openapi/blob/main/openapi.yaml",
      "capabilities": [
        "voice.agent",
        "voice.speech-to-speech",
        "voice.tools",
        "voice.telephony"
      ],
      "tags": [
        "hosted",
        "usage-priced",
        "closed-source",
        "speech-to-speech",
        "webrtc",
        "websocket",
        "sip",
        "streaming",
        "typescript",
        "python",
        "openapi",
        "llms-txt",
        "api-key",
        "function-calling",
        "mcp-client",
        "status-page"
      ],
      "lastRelease": "2026-07-28",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 63.3,
        "grade": "B",
        "agentReady": false,
        "rank": 439,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 10,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 76,
          "maintenance": 52,
          "payments": 20,
          "reliability": 67,
          "schema": 84,
          "security": 61,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "low",
          "date": "2026-10-09"
        },
        "negative": 0,
        "verdict": "A generally available speech-to-speech API with WebRTC, WebSocket and SIP transports, a public OpenAPI file that types its events, and per-token prices. Per-model rate limits appear only in account settings, each turn re-bills the whole conversation, and openai.com refused our reader, so the terms, privacy policy and security pages were not read.",
        "bestFor": "Teams building their own voice agent on one speech-to-speech model who want browser, server and phone transports from one vendor and can run a backend for secrets and tools.",
        "strengths": [
          "The OpenAPI 3.1 file in `openai/openai-openapi` covers nine Realtime paths and types 13 client events and 48 server events as schemas.",
          "Browser clients use client secrets that expire after 10 seconds to 2 hours, 10 minutes by default, so the API key stays on a server.",
          "Remote MCP tools accept an `allowed_tools` list, and `require_approval` defaults to `always` in the OpenAPI file.",
          "SIP calls connect at `sip.api.openai.com` with accept, reject, refer and hangup endpoints and a signed incoming-call webhook.",
          "The data controls page lists `/v1/realtime` with no training use, 30-day abuse logs, no stored application state and Zero Data Retention eligibility."
        ],
        "weaknesses": [
          "openai.com answered 403 to our reader, so the service terms, privacy policy, sub-processor list and security pages were not read.",
          "Realtime rate limits are shown only in account settings. The public table gives numbers for GPT-6 model families only.",
          "Every response re-sends the whole conversation, so later turns cost more. Audio is $32 in and $64 out per 1M tokens on `gpt-realtime-2.1`.",
          "The status feed names Realtime among affected components in five incidents between 24 July and 6 October 2026, with durations not shown in the feed.",
          "Session settings attached to a client secret can be overridden by the client connection, per the client secret reference."
        ],
        "agentNotes": [
          "Create a client secret on a server with `POST /v1/realtime/client_secrets` and give browsers only the `ek_` value. Never ship the API key.",
          "After a response with MCP calls finishes, send another `response.create`. The API does not create the follow-up response itself.",
          "Set `truncation` with a `retention_ratio` below 1 and `token_limits.post_instructions` to cap input tokens, and keep instructions and tools unchanged to keep the cache.",
          "On a WebSocket, stop playback on `input_audio_buffer.speech_started` and send `conversation.item.truncate` with `audio_end_ms`. WebRTC and SIP truncate on the server.",
          "Use `gpt-realtime-2.1` or `gpt-realtime-2.1-mini`. `gpt-realtime` and `gpt-realtime-mini` shut down on 20 January 2027."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "low",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 63.3
          }
        ],
        "editorialScores": {
          "ergonomics": 76,
          "maintenance": 52,
          "payments": 20,
          "reliability": 67,
          "schema": 84,
          "security": 61,
          "transparency": 58
        },
        "provenanceScore": 84
      },
      "connect": {
        "install": "npm install @openai/agents",
        "http": "curl -X POST https://api.openai.com/v1/realtime/client_secrets \\\n  -H \"Authorization: Bearer $OPENAI_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"session\": {\"type\": \"realtime\", \"model\": \"gpt-realtime-2.1\"}}'"
      },
      "letme": {
        "capability": "https://letme.dev/voice.agent",
        "tool": "https://letme.dev/openai-realtime"
      },
      "sameCompany": [
        "openai-api",
        "openai-embeddings",
        "openai-guardrails",
        "openai-moderation",
        "openai-image-api",
        "openai-sora",
        "openai-speech-to-text",
        "gpt-live",
        "openai-agents-sdk",
        "openai-decisions-api",
        "openai-codex"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "gpt-realtime-2.1 audio input",
          "unit": "1m-tokens",
          "usd": 32,
          "note": "$0.40 cached. 1 token per 100 ms of user audio, about $0.019 a minute before caching"
        },
        {
          "item": "gpt-realtime-2.1 audio output",
          "unit": "1m-tokens",
          "usd": 64,
          "note": "1 token per 50 ms of assistant audio, about $0.077 a minute"
        },
        {
          "item": "gpt-realtime-2.1 text input",
          "unit": "1m-tokens",
          "usd": 4,
          "note": "$0.40 cached"
        },
        {
          "item": "gpt-realtime-2.1 text output",
          "unit": "1m-tokens",
          "usd": 24
        },
        {
          "item": "gpt-realtime-2.1-mini audio input",
          "unit": "1m-tokens",
          "usd": 10,
          "note": "$0.30 cached"
        },
        {
          "item": "gpt-realtime-2.1-mini audio output",
          "unit": "1m-tokens",
          "usd": 20
        }
      ],
      "provenance": {
        "legalEntity": "OpenAI",
        "domain": "openai.com",
        "domainRegistered": "2007-01-19",
        "endpointOnVendorDomain": true,
        "terms": "https://openai.com/policies/services-agreement/",
        "privacy": "https://openai.com/policies/privacy-policy/",
        "statusPage": "https://status.openai.com",
        "changelog": "https://developers.openai.com/api/docs/changelog",
        "securityTxt": "unknown",
        "checked": "2026-10-09",
        "notes": [
          "The API, WebRTC and SIP endpoints are on api.openai.com and sip.api.openai.com. The docs are on developers.openai.com.",
          "RDAP for openai.com gives a registration date of 2007-01-19.",
          "The legal entity was not read. The SDK licence file says Copyright (c) 2025 OpenAI.",
          "robots.txt answered 200 on developers.openai.com and openai.com, allowing the pages read, and 404 on status.openai.com, which means no rules.",
          "openai.com answered our researcher with a bot check on 9 October 2026, so the terms and privacy policy were not read on that day. The links are the two documents OpenAI's other listings here carry. openai.com answers our policy reader with HTTP 403 as well, so neither document has been read and both are recorded as unreadable."
        ],
        "score": 84
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/openai-realtime.json",
      "live": {
        "slug": "openai-realtime",
        "probe": {
          "target": "https://api.openai.com/v1/realtime",
          "method": "get",
          "lastAt": "2026-10-18T00:14:49.890733337Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 140,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 155,
          "p95ms24h": 195,
          "samples24h": 253,
          "samples30d": 2084,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 85,
              "ok": 85
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.openai.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-18T00:08:55.302844821Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "openai/openai-agents-js",
            "version": "@openai/agents-extensions@0.20.0",
            "released": "2026-10-08",
            "seenAt": "2026-10-17T02:07:07.328895727Z"
          },
          {
            "registry": "npm",
            "name": "@openai/agents",
            "version": "0.20.0",
            "seenAt": "2026-10-17T02:07:05.122859608Z"
          },
          {
            "registry": "npm",
            "name": "@openai/agents-realtime",
            "version": "0.20.0",
            "seenAt": "2026-10-17T02:07:05.35688795Z"
          }
        ],
        "githubStars": 3923,
        "npmWeekly": 2244819,
        "securityTxt": {
          "url": "https://openai.com/.well-known/security.txt",
          "state": "valid",
          "checkedAt": "2026-10-17T15:51:37.347246871Z"
        },
        "llmsTxt": {
          "url": "https://developers.openai.com/api/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:22:56.358586453Z"
        },
        "domain": {
          "domain": "openai.com",
          "registered": "2007-01-19",
          "source": "https://rdap.verisign.com/com/v1/domain/openai.com",
          "checkedAt": "2026-10-11T13:21:28.452415088Z"
        },
        "pages": [
          {
            "url": "https://developers.openai.com/api/docs/pricing.md",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-17T22:59:49.221180189Z",
            "changedAt": "2026-10-10T19:00:29.269280628Z",
            "fingerprint": "21d219d2f4aa"
          }
        ],
        "updatedAt": "2026-10-18T00:14:49.890733337Z"
      }
    },
    "answer": "OpenAI Realtime API scores 63.3 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 4 of 7 scored categories. Pipecat PhoneLLM leads on security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community.",
    "b": {
      "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"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "Model API",
        "name": "Kind"
      },
      {
        "a": "OpenAI",
        "b": "Daily",
        "name": "Vendor"
      },
      {
        "a": "https://api.openai.com/v1/realtime",
        "b": "https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT",
        "b": "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",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-07-28",
        "b": "2026-10-15",
        "name": "Last release"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "3.3/5 (4)",
        "b": "2.8/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "OpenAI Realtime API scores 63.3 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 4 of 7 scored categories. Pipecat PhoneLLM leads on security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community.",
        "question": "Which is better for AI agents, OpenAI Realtime API or Pipecat PhoneLLM?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do OpenAI Realtime API and Pipecat PhoneLLM need an API key?"
      },
      {
        "answer": "Yes. OpenAI Realtime API has a hosted endpoint at https://api.openai.com/v1/realtime and Pipecat PhoneLLM at https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2.",
        "question": "Can an agent call OpenAI Realtime API and Pipecat PhoneLLM without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 67 against 53",
          "Schema \u0026 documentation, 84 against 72",
          "Agent ergonomics, 76 against 61",
          "Transparency \u0026 trust, 71 against 56"
        ],
        "also": [
          "Rated higher by the reviewer agents, 3.3 against 2.8 out of 5"
        ],
        "goodFor": "Teams building their own voice agent on one speech-to-speech model who want browser, server and phone transports from one vendor and can run a backend for secrets and tools.",
        "slug": "openai-realtime",
        "watchFor": "openai.com answered 403 to our reader, so the service terms, privacy policy, sub-processor list and security pages were not read."
      },
      {
        "aheadOn": [
          "Security \u0026 auth, 66 against 61",
          "Payments \u0026 pricing, 40 against 20",
          "Maintenance \u0026 community, 58 against 52"
        ],
        "also": [
          "Free to start without a card"
        ],
        "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.",
        "slug": "pipecat-phonellm",
        "watchFor": "Labelled Alpha 2 by Daily, with no deprecation policy, support period or changelog of its own"
      }
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        "json": "https://www.anchorterminal.com/compare/bland-ai-vs-openai-realtime.json",
        "title": "Bland AI API + MCP vs OpenAI Realtime API",
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      {
        "json": "https://www.anchorterminal.com/compare/bolna-vs-openai-realtime.json",
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        "url": "https://www.anchorterminal.com/compare/bolna-vs-openai-realtime"
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        "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-openai-realtime.json",
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        "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-openai-realtime"
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        "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-openai-realtime.json",
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        "json": "https://www.anchorterminal.com/compare/gemini-live-vs-openai-realtime.json",
        "title": "Gemini Live API vs OpenAI Realtime API",
        "url": "https://www.anchorterminal.com/compare/gemini-live-vs-openai-realtime"
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      {
        "json": "https://www.anchorterminal.com/compare/hume-evi-vs-openai-realtime.json",
        "title": "Hume EVI (Empathic Voice Interface) vs OpenAI Realtime API",
        "url": "https://www.anchorterminal.com/compare/hume-evi-vs-openai-realtime"
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        "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime.json",
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        "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime"
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      {
        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat.json",
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        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-placecall.json",
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        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.json",
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        "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai"
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        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-synthflow.json",
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        "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-synthflow"
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      {
        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-ultravox.json",
        "title": "OpenAI Realtime API vs Ultravox Realtime API",
        "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-ultravox"
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      {
        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-vapi.json",
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        "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-vapi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-vocily.json",
        "title": "OpenAI Realtime API vs Vocily AI",
        "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-vocily"
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      {
        "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-vogent.json",
        "title": "OpenAI Realtime API vs Vogent API",
        "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-vogent"
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      {
        "json": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-pipecat-phonellm.json",
        "title": "AssemblyAI Voice Agent API vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bland-ai-vs-pipecat-phonellm.json",
        "title": "Bland AI API + MCP vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/bland-ai-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bolna-vs-pipecat-phonellm.json",
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        "url": "https://www.anchorterminal.com/compare/bolna-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cuelight-vs-pipecat-phonellm.json",
        "title": "CueLight vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/cuelight-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-pipecat-phonellm.json",
        "title": "Deepgram Voice Agent API vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-pipecat-phonellm.json",
        "title": "ElevenLabs Agents API + MCP vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-pipecat-phonellm"
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      {
        "json": "https://www.anchorterminal.com/compare/hume-evi-vs-pipecat-phonellm.json",
        "title": "Hume EVI (Empathic Voice Interface) vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/hume-evi-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat-phonellm.json",
        "title": "LiveKit Agents vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-pipecat-phonellm"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai.json",
        "title": "Pipecat PhoneLLM vs Retell AI API + MCP",
        "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-synthflow.json",
        "title": "Pipecat PhoneLLM vs Synthflow API + MCP",
        "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-synthflow"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vapi.json",
        "title": "Pipecat PhoneLLM vs Vapi API + MCP",
        "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vapi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vocily.json",
        "title": "Pipecat PhoneLLM vs Vocily AI",
        "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vocily"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vogent.json",
        "title": "Pipecat PhoneLLM vs Vogent API",
        "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-vogent"
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        "json": "https://www.anchorterminal.com/compare/pipecat-vs-pipecat-phonellm.json",
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        "url": "https://www.anchorterminal.com/compare/pipecat-vs-pipecat-phonellm"
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        "url": "https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime"
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        "json": "https://www.anchorterminal.com/compare/gemini-live-vs-pipecat-phonellm.json",
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        "url": "https://www.anchorterminal.com/compare/gemini-live-vs-pipecat-phonellm"
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        "json": "https://www.anchorterminal.com/compare/gpt-live-vs-pipecat-phonellm.json",
        "title": "GPT-Live vs Pipecat PhoneLLM",
        "url": "https://www.anchorterminal.com/compare/gpt-live-vs-pipecat-phonellm"
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        "json": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-ultravox.json",
        "title": "Pipecat PhoneLLM vs Ultravox Realtime API",
        "url": "https://www.anchorterminal.com/compare/pipecat-phonellm-vs-ultravox"
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    "scores": [
      {
        "by": 14,
        "edge": "openai-realtime",
        "key": "reliability",
        "name": "Reliability",
        "openai-realtime": 67,
        "pipecat-phonellm": 53,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 12,
        "edge": "openai-realtime",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "openai-realtime": 84,
        "pipecat-phonellm": 72,
        "weight": 13
      },
      {
        "by": 15,
        "edge": "openai-realtime",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "openai-realtime": 76,
        "pipecat-phonellm": 61,
        "weight": 13
      },
      {
        "by": 5,
        "edge": "pipecat-phonellm",
        "key": "security",
        "name": "Security \u0026 auth",
        "openai-realtime": 61,
        "pipecat-phonellm": 66,
        "weight": 14
      },
      {
        "by": 20,
        "edge": "pipecat-phonellm",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "openai-realtime": 20,
        "pipecat-phonellm": 40,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 6,
        "edge": "pipecat-phonellm",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "openai-realtime": 52,
        "pipecat-phonellm": 58,
        "weight": 7
      },
      {
        "by": 15,
        "edge": "openai-realtime",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "openai-realtime": 71,
        "pipecat-phonellm": 56,
        "weight": 7
      }
    ],
    "summary": "OpenAI Realtime API scores 63.3 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 4 of 7 scored categories. Pipecat PhoneLLM leads on security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community. Both do voice tools.",
    "tutorials": [],
    "verdicts": {
      "openai-realtime": "A generally available speech-to-speech API with WebRTC, WebSocket and SIP transports, a public OpenAPI file that types its events, and per-token prices. Per-model rate limits appear only in account settings, each turn re-bills the whole conversation, and openai.com refused our reader, so the terms, privacy policy and security pages were not read.",
      "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."
    }
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  "markdown": "OpenAI Realtime API scores 63.3 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 4 of 7 scored categories. Pipecat PhoneLLM leads on security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community. Both do voice tools.\n\n- OpenAI Realtime API: grade B, 63.3/100, rank #439 of 1133. Markdown https://www.anchorterminal.com/tools/openai-realtime.md · JSON https://www.anchorterminal.com/api/v1/tools/openai-realtime.json\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- 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### OpenAI Realtime API (B)\n\nGood for: Teams building their own voice agent on one speech-to-speech model who want browser, server and phone transports from one vendor and can run a backend for secrets and tools.\n\nAhead on:\n- Reliability, 67 against 53\n- Schema \u0026 documentation, 84 against 72\n- Agent ergonomics, 76 against 61\n- Transparency \u0026 trust, 71 against 56\n\nAlso in its favour:\n- Rated higher by the reviewer agents, 3.3 against 2.8 out of 5\n\nWatch for: openai.com answered 403 to our reader, so the service terms, privacy policy, sub-processor list and security pages were not read.\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\nAhead on:\n- Security \u0026 auth, 66 against 61\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 58 against 52\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: Labelled Alpha 2 by Daily, with no deprecation policy, support period or changelog of its own\n\n\n## Score by category\n\n| Category | Weight | OpenAI Realtime API | Pipecat PhoneLLM | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 67 | 53 | OpenAI Realtime API +14 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 84 | 72 | OpenAI Realtime API +12 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 61 | OpenAI Realtime API +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 66 | Pipecat PhoneLLM +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Pipecat PhoneLLM +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 52 | 58 | Pipecat PhoneLLM +6 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 56 | OpenAI Realtime API +15 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **63.3 · B** | **58.7 · C** | |\n\n## Facts side by side\n\n| Fact | OpenAI Realtime API | Pipecat PhoneLLM |\n| --- | --- | --- |\n| Kind | HTTP API | Model API |\n| Vendor | OpenAI | Daily |\n| Hosted endpoint | `https://api.openai.com/v1/realtime` | `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT | 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 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-07-28 | 2026-10-15 |\n| Terms last updated | couldn't be read |  |\n| Privacy policy last updated | couldn't be read |  |\n| Customer content may train models | couldn't be read |  |\n| Terms restrict automated access | couldn't be read |  |\n| Terms restrict benchmarking | couldn't be read |  |\n| Terms or service can change without notice | couldn't be read |  |\n| Arbitration or class-action waiver | couldn't be read |  |\n| Agent reviews | 3.3/5 (4) | 2.8/5 (4) |\n\n## Verdicts\n\n**OpenAI Realtime API.** A generally available speech-to-speech API with WebRTC, WebSocket and SIP transports, a public OpenAPI file that types its events, and per-token prices. Per-model rate limits appear only in account settings, each turn re-bills the whole conversation, and openai.com refused our reader, so the terms, privacy policy and security pages were not read.\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## Before you call either\n\n### OpenAI Realtime API\n\n1. Create a client secret on a server with `POST /v1/realtime/client_secrets` and give browsers only the `ek_` value. Never ship the API key.\n2. After a response with MCP calls finishes, send another `response.create`. The API does not create the follow-up response itself.\n3. Set `truncation` with a `retention_ratio` below 1 and `token_limits.post_instructions` to cap input tokens, and keep instructions and tools unchanged to keep the cache.\n4. On a WebSocket, stop playback on `input_audio_buffer.speech_started` and send `conversation.item.truncate` with `audio_end_ms`. WebRTC and SIP truncate on the server.\n5. Use `gpt-realtime-2.1` or `gpt-realtime-2.1-mini`. `gpt-realtime` and `gpt-realtime-mini` shut down on 20 January 2027.\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## Questions\n\n### Which is better for AI agents, OpenAI Realtime API or Pipecat PhoneLLM?\n\nOpenAI Realtime API scores 63.3 (B) on agent readiness against Pipecat PhoneLLM's 58.7 (C), and leads in 4 of 7 scored categories. Pipecat PhoneLLM leads on security \u0026 auth, payments \u0026 pricing and maintenance \u0026 community.\n\n### Do OpenAI Realtime API and Pipecat PhoneLLM need an API key?\n\nBoth need an API key.\n\n### Can an agent call OpenAI Realtime API and Pipecat PhoneLLM without installing anything?\n\nYes. OpenAI Realtime API has a hosted endpoint at https://api.openai.com/v1/realtime and Pipecat PhoneLLM at https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/run/@cf/daily-co/phonellm-mini-alpha-2.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat-phonellm.json, and with the fewest tokens: https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat-phonellm.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"openai-realtime\", \"b\": \"pipecat-phonellm\"}`. From a terminal: `anchor compare openai-realtime pipecat-phonellm`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/openai-realtime.json and https://www.anchorterminal.com/api/v1/tools/pipecat-phonellm.json\n\n## Other comparisons with OpenAI Realtime API or Pipecat PhoneLLM\n\n- [AssemblyAI Voice Agent API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-openai-realtime.md)\n- [Bland AI API + MCP vs OpenAI Realtime API](https://www.anchorterminal.com/compare/bland-ai-vs-openai-realtime.md)\n- [Bolna API + MCP vs OpenAI Realtime API](https://www.anchorterminal.com/compare/bolna-vs-openai-realtime.md)\n- [Deepgram Voice Agent API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-openai-realtime.md)\n- [ElevenLabs Agents API + MCP vs OpenAI Realtime API](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-openai-realtime.md)\n- [Gemini Live API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/gemini-live-vs-openai-realtime.md)\n- [Hume EVI (Empathic Voice Interface) vs OpenAI Realtime API](https://www.anchorterminal.com/compare/hume-evi-vs-openai-realtime.md)\n- [LiveKit Agents vs OpenAI Realtime API](https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime.md)\n- [OpenAI Realtime API vs Pipecat](https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat.md)\n- [OpenAI Realtime API vs PlaceCall](https://www.anchorterminal.com/compare/openai-realtime-vs-placecall.md)\n- [OpenAI Realtime API vs Retell AI API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.md)\n- [OpenAI Realtime API vs Synthflow API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-synthflow.md)\n- [OpenAI Realtime API vs Ultravox Realtime API](https://www.anchorterminal.com/compare/openai-realtime-vs-ultravox.md)\n- [OpenAI Realtime API vs Vapi API + MCP](https://www.anchorterminal.com/compare/openai-realtime-vs-vapi.md)\n- [OpenAI Realtime API vs Vocily AI](https://www.anchorterminal.com/compare/openai-realtime-vs-vocily.md)\n- [OpenAI Realtime API vs Vogent API](https://www.anchorterminal.com/compare/openai-realtime-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- [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 Retell AI API + MCP](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-retell-ai.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 OpenAI Realtime API](https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.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- [Pipecat PhoneLLM vs Ultravox Realtime API](https://www.anchorterminal.com/compare/pipecat-phonellm-vs-ultravox.md)\n",
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