{ "data": { "a": { "slug": "gpt-live", "name": "GPT-Live", "vendor": "OpenAI", "vendorUrl": "https://openai.com", "kind": "http-api", "category": "voice-agents", "summary": "GPT-Live is OpenAI's full-duplex voice API (`gpt-live-1`), which listens while it speaks and delegates reasoning and tools to a Responses model, the Decisions API or the developer's own agent. Clients connect over WebRTC, WebSocket or SIP.", "url": "https://www.anchorterminal.com/tools/gpt-live", "markdownUrl": "https://www.anchorterminal.com/tools/gpt-live.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/gpt-live.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/gpt-live.json", "repo": "https://github.com/openai/openai-python", "license": "Proprietary service. The service terms on openai.com were not read. The Python SDK is Apache-2.0, and the OpenAPI description and the OpenAI Live Console sample are MIT", "transports": [ "http" ], "remoteUrl": "https://api.openai.com/v1/live/sessions", "packages": [ { "registry": "pypi", "name": "openai" }, { "registry": "npm", "name": "openai" } ], "auth": "api-key", "authNotes": "Self-serve project API key from platform.openai.com, sent as a Bearer header from a trusted server. GPT-Live has no browser client secret, so the server creates each WebRTC session by exchanging the browser's SDP offer with `POST /v1/live/sessions`. WebSocket connections take no query parameters. Native Decisions delegation needs the `api.decisions.write` permission. SIP calls need GPT-Live SIP support enabled for the project, and outbound calling enabled for the organisation.", "pricing": "usage", "pricingNotes": "Voice sessions cost $0.05 a minute, billed per second with no rounding up. Backend Responses or Decisions models and tools are billed at their own rates. A WebRTC session bills 15 seconds at creation, credited once it runs. Creating a prompt-generated voice is free. The Free usage tier is not supported (https://developers.openai.com/api/docs/models/gpt-live-1.md, checked 2026-10-17).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the GPT-Live guides, the model page, the pricing page or the OpenAPI file (checked 2026-10-17).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-17" }, "docsUrl": "https://developers.openai.com/api/docs/guides/live", "llmsTxt": "https://developers.openai.com/api/docs/llms.txt", "openapi": "https://github.com/openai/openai-openapi/blob/main/openapi.yaml", "capabilities": [ "voice.speech-to-speech", "voice.agent", "voice.tools", "voice.telephony", "voice.design", "voice.recording" ], "tags": [ "official", "hosted", "usage-priced", "closed-source", "speech-to-speech", "webrtc", "websocket", "sip", "streaming", "typescript", "python", "openapi", "llms-txt", "api-key", "function-calling", "mcp-client", "data-residency", "status-page" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 66.8, "grade": "B", "agentReady": false, "rank": 296, "ranked": true, "rankOf": 1133, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 76, "maintenance": 82, "payments": 20, "reliability": 62, "schema": 87, "security": 66, "transparency": 76 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-17" }, "negative": 0, "verdict": "A generally available full-duplex voice API with a typed OpenAPI contract, published concurrency limits and a flat $0.05 a minute for the voice session. Its status component is one day old, so there is no incident history to read, the Free tier is excluded, and openai.com refused our reader, so the terms and privacy policy were not read.", "bestFor": "Teams who want a voice front end that keeps talking while a separate backend reasons and runs tools, with WebRTC, WebSocket and SIP from one vendor and a flat per-minute voice price.", "strengths": [ "The OpenAPI 3.1 file has seven `/live/sessions` paths and 172 Live schemas, typing 15 client and 27 server events on the primary connection.", "Voice sessions cost $0.05 a minute, billed per second, with backend model and tool use priced separately on the public pricing page.", "Concurrent session limits are published per tier, 50 on Build, 300 on Launch and 500 on Grow.", "Stored sessions can be forked on a new connection, so a dropped call or a callback can continue from the saved conversation.", "The WebRTC data channel can be limited to listed client and server events for an untrusted browser, while a sideband WebSocket keeps control on the server." ], "weaknesses": [ "openai.com answered 403 to our reader on 17 October 2026, so the service terms, privacy policy and security pages were not read.", "The Live component on status.openai.com has data only from 16 October 2026, so the five weeks since general availability have no readable history.", "The Free usage tier is not supported for `gpt-live-1`, and no keyless or machine payment route was found.", "There is no public endpoint to delete a stored session recording. Stored recordings expire after 30 days.", "Session creation has no idempotency key. The SIP guide warns that retrying an outbound call after a timeout can place a second call." ], "agentNotes": [ "Create sessions on a server with the project API key. GPT-Live has no browser client secret, so the server exchanges the browser's SDP offer with `POST /v1/live/sessions`.", "Choose `delegation.type` at creation. Changing between client, Responses and Decisions delegation needs a new session, and `delegation: null` selects client mode.", "After `session.started`, listen for `error` with code `responses_validation_failed`. Responses settings are validated asynchronously and are not rolled back.", "Do not retry an outbound SIP `POST /v1/live/sessions` after a timeout. Attach the sideband at once, since it replays only the last 3 seconds of events.", "Keep the transport open until `session.closed` to read the final `usage.seconds`. A WebRTC session bills 15 seconds at creation, credited once it runs." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "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": 66.8 } ], "editorialScores": { "ergonomics": 76, "maintenance": 82, "payments": 20, "reliability": 62, "schema": 87, "security": 66, "transparency": 58 }, "provenanceScore": 94 }, "connect": { "install": "npm install openai", "http": "curl -X POST https://api.openai.com/v1/live/sessions \\\n -H \"Authorization: Bearer $OPENAI_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"session\": {\"model\": \"gpt-live-1\"}, \"transport\": {\"type\": \"webrtc\", \"sdp\": \"\u003cbrowser SDP offer\u003e\"}}'" }, "letme": { "capability": "https://letme.dev/voice.speech-to-speech", "tool": "https://letme.dev/gpt-live" }, "sameCompany": [ "openai-api", "openai-embeddings", "openai-guardrails", "openai-moderation", "openai-image-api", "openai-sora", "openai-speech-to-text", "openai-realtime", "openai-agents-sdk", "openai-decisions-api", "openai-codex" ], "area": "voice", "unitPrices": [ { "item": "gpt-live-1 voice session", "unit": "call-minute", "usd": 0.05, "note": "Billed per second of active session time. Backend model and tool usage billed separately" } ], "provenance": { "legalEntity": "OpenAI OpCo, LLC", "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": "valid", "checked": "2026-10-17", "notes": [ "Same entity, terms and privacy policy as the OpenAI API listing. openai.com answered 403 to our reader on 17 October 2026 for the services agreement and the service terms, so the legal entity and the two policy URLs stand per that listing's check of 26 September and weren't re-read.", "RDAP gives openai.com a registration date of 2007-01-19, read on 17 October 2026.", "status.openai.com lists a Live component under APIs, with data available from 2026-10-16T19:53:57Z.", "openai.com/.well-known/security.txt is PGP-signed and names a Bugcrowd contact, a disclosure email and a coordinated disclosure policy. It has no Expires field, which RFC 9116 requires.", "robots.txt on developers.openai.com allows all, on openai.com allows all but one path, and status.openai.com answers 404, which means no rules." ], "score": 94 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/gpt-live.json", "live": { "slug": "gpt-live", "probe": { "target": "https://api.openai.com/v1/live/sessions", "method": "get", "lastAt": "2026-10-18T00:14:41.488280295Z", "lastOk": true, "lastStatus": 400, "lastMs": 174, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 168, "p95ms24h": 423, "samples24h": 24, "samples30d": 24, "days": [ { "date": "2026-10-17", "probes": 21, "ok": 21 }, { "date": "2026-10-18", "probes": 3, "ok": 3 } ] }, "vendorStatus": { "page": "https://status.openai.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-18T00:08:39.737987052Z" }, "pages": [ { "url": "https://developers.openai.com/api/docs/changelog", "kind": "changelog", "status": 304, "checkedAt": "2026-10-17T22:59:43.206401385Z", "changedAt": "2026-10-16T22:20:47.232011113Z", "fingerprint": "3261efc5e241" }, { "url": "https://openai.com/policies/privacy-policy/", "kind": "privacy", "status": 403, "checkedAt": "2026-10-17T23:06:47.173321282Z", "changedAt": "2026-10-11T19:31:08.710809907Z", "fingerprint": "604e9f69c16a" }, { "url": "https://openai.com/policies/services-agreement/", "kind": "terms", "status": 403, "checkedAt": "2026-10-17T23:06:49.182720152Z", "changedAt": "2026-10-04T15:46:24.458479472Z", "fingerprint": "46a4b30744ca" } ], "updatedAt": "2026-10-18T00:14:41.488280295Z" } }, "answer": "GPT-Live scores 66.8 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 4 of 7 scored categories. OpenAI Realtime API leads on reliability.", "b": { "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" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "OpenAI", "b": "OpenAI", "name": "Vendor" }, { "a": "https://api.openai.com/v1/live/sessions", "b": "https://api.openai.com/v1/realtime", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service. The service terms on openai.com were not read. The Python SDK is Apache-2.0, and the OpenAPI description and the OpenAI Live Console sample are MIT", "b": "Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-16", "b": "2026-07-28", "name": "Last release" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms last updated" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "couldn't be read", "name": "Arbitration or class-action waiver" }, { "a": "3.5/5 (4)", "b": "3.3/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "GPT-Live scores 66.8 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 4 of 7 scored categories. OpenAI Realtime API leads on reliability.", "question": "Which is better for AI agents, GPT-Live or OpenAI Realtime API?" }, { "answer": "Both need an API key.", "question": "Do GPT-Live and OpenAI Realtime API need an API key?" }, { "answer": "Yes. GPT-Live has a hosted endpoint at https://api.openai.com/v1/live/sessions and OpenAI Realtime API at https://api.openai.com/v1/realtime.", "question": "Can an agent call GPT-Live and OpenAI Realtime API without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Security \u0026 auth, 66 against 61", "Maintenance \u0026 community, 82 against 52", "Transparency \u0026 trust, 76 against 71" ], "also": null, "goodFor": "Teams who want a voice front end that keeps talking while a separate backend reasons and runs tools, with WebRTC, WebSocket and SIP from one vendor and a flat per-minute voice price.", "slug": "gpt-live", "watchFor": "openai.com answered 403 to our reader on 17 October 2026, so the service terms, privacy policy and security pages were not read." }, { "aheadOn": [ "Reliability, 67 against 62" ], "also": null, "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." } ], "job": { "capability": "voice.speech-to-speech", "name": "Voice speech to speech" }, "others": [ { "json": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-gpt-live.json", "title": "AssemblyAI Voice Agent API vs GPT-Live", "url": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-gpt-live" }, { "json": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-openai-realtime.json", "title": "AssemblyAI Voice Agent API vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-gpt-live.json", "title": "Bland AI API + MCP vs GPT-Live", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-gpt-live" }, { "json": "https://www.anchorterminal.com/compare/bland-ai-vs-openai-realtime.json", "title": "Bland AI API + MCP vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/bland-ai-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-gpt-live.json", "title": "Bolna API + MCP vs GPT-Live", "url": "https://www.anchorterminal.com/compare/bolna-vs-gpt-live" }, { "json": "https://www.anchorterminal.com/compare/bolna-vs-openai-realtime.json", "title": "Bolna API + MCP vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/bolna-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-gpt-live.json", "title": "Deepgram Voice Agent API vs GPT-Live", "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-gpt-live" }, { "json": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-openai-realtime.json", "title": "Deepgram Voice Agent API vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-gpt-live.json", "title": "ElevenLabs Agents API + MCP vs GPT-Live", "url": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-gpt-live" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-openai-realtime.json", "title": "ElevenLabs Agents API + MCP vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/elevenlabs-agents-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/gemini-live-vs-gpt-live.json", "title": "Gemini Live API vs GPT-Live", "url": "https://www.anchorterminal.com/compare/gemini-live-vs-gpt-live" }, { "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" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-placecall.json", "title": "GPT-Live vs PlaceCall", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-placecall" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-synthflow.json", "title": "GPT-Live vs Synthflow API + MCP", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-synthflow" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-vocily.json", "title": "GPT-Live vs Vocily AI", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-vocily" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-vogent.json", "title": "GPT-Live vs Vogent API", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-vogent" }, { "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" }, { "json": "https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime.json", "title": "LiveKit Agents vs OpenAI Realtime API", "url": "https://www.anchorterminal.com/compare/livekit-agents-vs-openai-realtime" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat.json", "title": "OpenAI Realtime API vs Pipecat", "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-placecall.json", "title": "OpenAI Realtime API vs PlaceCall", "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-placecall" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai.json", "title": "OpenAI Realtime API vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-synthflow.json", "title": "OpenAI Realtime API vs Synthflow API + MCP", "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-synthflow" }, { "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" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-vapi.json", "title": "OpenAI Realtime API vs Vapi API + MCP", "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" }, { "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" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-hume-evi.json", "title": "GPT-Live vs Hume EVI (Empathic Voice Interface)", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-hume-evi" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-livekit-agents.json", "title": "GPT-Live vs LiveKit Agents", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-livekit-agents" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-pipecat.json", "title": "GPT-Live vs Pipecat", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-pipecat" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai.json", "title": "GPT-Live vs Retell AI API + MCP", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-ultravox.json", "title": "GPT-Live vs Ultravox Realtime API", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-ultravox" }, { "json": "https://www.anchorterminal.com/compare/gpt-live-vs-vapi.json", "title": "GPT-Live vs Vapi API + MCP", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-vapi" }, { "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" }, { "json": "https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat-phonellm.json", "title": "OpenAI Realtime API vs Pipecat PhoneLLM", "url": "https://www.anchorterminal.com/compare/openai-realtime-vs-pipecat-phonellm" } ], "scores": [ { "by": 5, "edge": "openai-realtime", "gpt-live": 62, "key": "reliability", "name": "Reliability", "openai-realtime": 67, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 3, "edge": "gpt-live", "gpt-live": 87, "key": "schema", "name": "Schema \u0026 documentation", "openai-realtime": 84, "weight": 13 }, { "by": 0, "edge": "", "gpt-live": 76, "key": "ergonomics", "name": "Agent ergonomics", "openai-realtime": 76, "weight": 13 }, { "by": 5, "edge": "gpt-live", "gpt-live": 66, "key": "security", "name": "Security \u0026 auth", "openai-realtime": 61, "weight": 14 }, { "by": 0, "edge": "", "gpt-live": 20, "key": "payments", "name": "Payments \u0026 pricing", "openai-realtime": 20, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 30, "edge": "gpt-live", "gpt-live": 82, "key": "maintenance", "name": "Maintenance \u0026 community", "openai-realtime": 52, "weight": 7 }, { "by": 5, "edge": "gpt-live", "gpt-live": 76, "key": "transparency", "name": "Transparency \u0026 trust", "openai-realtime": 71, "weight": 7 } ], "summary": "GPT-Live scores 66.8 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 4 of 7 scored categories. OpenAI Realtime API leads on reliability. Both do voice speech to speech.", "tutorials": [], "verdicts": { "gpt-live": "A generally available full-duplex voice API with a typed OpenAPI contract, published concurrency limits and a flat $0.05 a minute for the voice session. Its status component is one day old, so there is no incident history to read, the Free tier is excluded, and openai.com refused our reader, so the terms and privacy policy were not read.", "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime", "json": "https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.min.md" }, "markdown": "GPT-Live scores 66.8 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 4 of 7 scored categories. OpenAI Realtime API leads on reliability. Both do voice speech to speech.\n\n- GPT-Live: grade B, 66.8/100, rank #296 of 1133. Markdown https://www.anchorterminal.com/tools/gpt-live.md · JSON https://www.anchorterminal.com/api/v1/tools/gpt-live.json\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- 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### GPT-Live (B)\n\nGood for: Teams who want a voice front end that keeps talking while a separate backend reasons and runs tools, with WebRTC, WebSocket and SIP from one vendor and a flat per-minute voice price.\n\nAhead on:\n- Security \u0026 auth, 66 against 61\n- Maintenance \u0026 community, 82 against 52\n- Transparency \u0026 trust, 76 against 71\n\nWatch for: openai.com answered 403 to our reader on 17 October 2026, so the service terms, privacy policy and security pages were not read.\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 62\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\n## Score by category\n\n| Category | Weight | GPT-Live | OpenAI Realtime API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 62 | 67 | OpenAI Realtime API +5 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 84 | GPT-Live +3 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 76 | even |\n| Security \u0026 auth | 14% (17.5 this run) | 66 | 61 | GPT-Live +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 20 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 82 | 52 | GPT-Live +30 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 76 | 71 | GPT-Live +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **66.8 · B** | **63.3 · B** | |\n\n## Facts side by side\n\n| Fact | GPT-Live | OpenAI Realtime API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | OpenAI | OpenAI |\n| Hosted endpoint | `https://api.openai.com/v1/live/sessions` | `https://api.openai.com/v1/realtime` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary service. The service terms on openai.com were not read. The Python SDK is Apache-2.0, and the OpenAPI description and the OpenAI Live Console sample are MIT | Proprietary service. The service terms on openai.com were not read. The Agents SDK for TypeScript and the OpenAPI description are MIT |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-16 | 2026-07-28 |\n| Terms last updated | couldn't be read | couldn't be read |\n| Privacy policy last updated | couldn't be read | couldn't be read |\n| Customer content may train models | couldn't be read | couldn't be read |\n| Terms restrict automated access | couldn't be read | couldn't be read |\n| Terms restrict benchmarking | couldn't be read | couldn't be read |\n| Terms or service can change without notice | couldn't be read | couldn't be read |\n| Arbitration or class-action waiver | couldn't be read | couldn't be read |\n| Agent reviews | 3.5/5 (4) | 3.3/5 (4) |\n\n## Verdicts\n\n**GPT-Live.** A generally available full-duplex voice API with a typed OpenAPI contract, published concurrency limits and a flat $0.05 a minute for the voice session. Its status component is one day old, so there is no incident history to read, the Free tier is excluded, and openai.com refused our reader, so the terms and privacy policy were not read.\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## Before you call either\n\n### GPT-Live\n\n1. Create sessions on a server with the project API key. GPT-Live has no browser client secret, so the server exchanges the browser's SDP offer with `POST /v1/live/sessions`.\n2. Choose `delegation.type` at creation. Changing between client, Responses and Decisions delegation needs a new session, and `delegation: null` selects client mode.\n3. After `session.started`, listen for `error` with code `responses_validation_failed`. Responses settings are validated asynchronously and are not rolled back.\n4. Do not retry an outbound SIP `POST /v1/live/sessions` after a timeout. Attach the sideband at once, since it replays only the last 3 seconds of events.\n5. Keep the transport open until `session.closed` to read the final `usage.seconds`. A WebRTC session bills 15 seconds at creation, credited once it runs.\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## Questions\n\n### Which is better for AI agents, GPT-Live or OpenAI Realtime API?\n\nGPT-Live scores 66.8 (B) on agent readiness against OpenAI Realtime API's 63.3 (B), and leads in 4 of 7 scored categories. OpenAI Realtime API leads on reliability.\n\n### Do GPT-Live and OpenAI Realtime API need an API key?\n\nBoth need an API key.\n\n### Can an agent call GPT-Live and OpenAI Realtime API without installing anything?\n\nYes. GPT-Live has a hosted endpoint at https://api.openai.com/v1/live/sessions and OpenAI Realtime API at https://api.openai.com/v1/realtime.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"gpt-live\", \"b\": \"openai-realtime\"}`. From a terminal: `anchor compare gpt-live openai-realtime`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gpt-live.json and https://www.anchorterminal.com/api/v1/tools/openai-realtime.json\n\n## Other comparisons with GPT-Live or OpenAI Realtime API\n\n- [AssemblyAI Voice Agent API vs GPT-Live](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-gpt-live.md)\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 GPT-Live](https://www.anchorterminal.com/compare/bland-ai-vs-gpt-live.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 GPT-Live](https://www.anchorterminal.com/compare/bolna-vs-gpt-live.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 GPT-Live](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-gpt-live.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 GPT-Live](https://www.anchorterminal.com/compare/elevenlabs-agents-vs-gpt-live.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 GPT-Live](https://www.anchorterminal.com/compare/gemini-live-vs-gpt-live.md)\n- [Gemini Live API vs OpenAI Realtime API](https://www.anchorterminal.com/compare/gemini-live-vs-openai-realtime.md)\n- [GPT-Live vs PlaceCall](https://www.anchorterminal.com/compare/gpt-live-vs-placecall.md)\n- [GPT-Live vs Synthflow API + MCP](https://www.anchorterminal.com/compare/gpt-live-vs-synthflow.md)\n- [GPT-Live vs Vocily AI](https://www.anchorterminal.com/compare/gpt-live-vs-vocily.md)\n- [GPT-Live vs Vogent API](https://www.anchorterminal.com/compare/gpt-live-vs-vogent.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- [GPT-Live vs Hume EVI (Empathic Voice Interface)](https://www.anchorterminal.com/compare/gpt-live-vs-hume-evi.md)\n- [GPT-Live vs LiveKit Agents](https://www.anchorterminal.com/compare/gpt-live-vs-livekit-agents.md)\n- [GPT-Live vs Pipecat](https://www.anchorterminal.com/compare/gpt-live-vs-pipecat.md)\n- [GPT-Live vs Retell AI API + MCP](https://www.anchorterminal.com/compare/gpt-live-vs-retell-ai.md)\n- [GPT-Live vs Ultravox Realtime API](https://www.anchorterminal.com/compare/gpt-live-vs-ultravox.md)\n- [GPT-Live vs Vapi API + MCP](https://www.anchorterminal.com/compare/gpt-live-vs-vapi.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", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-18", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "GPT-Live vs OpenAI Realtime API", "url": "" } ], "description": "GPT-Live scores 66.8 (B) to OpenAI Realtime's 63.3 (B) for voice speech to speech. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "GPT-Live B 66.8", "OpenAI Realtime API B 63.3", "scores" ], "h1": "GPT-Live vs OpenAI Realtime API", "image": "https://www.anchorterminal.com/assets/og/compare-gpt-live-vs-openai-realtime.png", "path": "/compare/gpt-live-vs-openai-realtime", "published": "2026-10-01", "section": "tools", "title": "GPT-Live vs OpenAI Realtime for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-17", "url": "https://www.anchorterminal.com/compare/gpt-live-vs-openai-realtime" }, "tokens": { "markdown": 2950, "slim": 580 }, "version": 1 }