{"rewrite":{"id":"r_364453c3c4df3750cb3bcdfd","clusterId":"c_9531f7239a1aa2f9f0744f7e","slug":"openai-opens-gpt-live-1-voice-model-to-its-api","model":"deepseek-v4-flash","headline":"OpenAI Opens GPT-Live-1 Voice Model to Its API","summary":"OpenAI announced an API for GPT-Live-1 on September 10, 2026. The voice model runs full-duplex, speaking while it listens, and can hand reasoning and tool calls to backend text models such as GPT-6 Astra or to third-party models. Developers set tone, speaking speed, and conversation style through system prompts. OpenAI claims a 30 percent gain over GPT-Realtime-2.1 on Full Duplex Bench.","whyItMatters":"Opening GPT-Live-1 to developers puts the full-duplex architecture behind third-party voice agents, including phone handling for reservations and customer support, not only ChatGPT's own voice mode.","webCardHtml":"\u003cp\u003eThe API lets developers tune tone, pace, and conversation style through system prompts, and lets the model pass heavy work such as web search and deep reasoning to backend text models while the conversation continues. OpenAI lists interruption handling, ambient noise and silence, and long-session context retention among the strengths it cites. Phone deployment is one named use, from reservations to customer support. A broader set of voice options spans accents, dialects, and languages, with more planned. OpenAI states GPT-Live-1 improved 30 percent over GPT-Realtime-2.1 on Full Duplex Bench.\u003c/p\u003e","blueskyPost":"GPT-Live-1 keeping reasoning and tool calls on backend text models like GPT-6 Astra means the voice layer is a front end, not the brain. Latency between the two is the product now.","twitterPost":"GPT-Live-1 hands reasoning and tool calls to backend models. The voice layer is a front end; the seam between them is the product.","threadsPost":"GPT-Live-1's full-duplex speech handles talking and listening, but reasoning and tool calls route to backend models like GPT-6 Astra. That split makes the voice layer a front end. What OpenAI is really shipping is the handoff, and the handoff is where latency lives.","newsletterBlurb":"OpenAI announced an API for GPT-Live-1 on September 10, 2026. The full-duplex voice model speaks while listening and can hand reasoning and tool calls to backend text models. Developers get system-prompt control over tone, speaking speed, and conversation style.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260911-gpt-live-1/\",\"title\":\"OpenAI Releases API for Voice Conversation AI \\\"GPT-Live-1\\\"\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4675,"outputTokens":552,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1789100085,"createdAt":"2026-09-11T04:11:07.000Z","publishedAt":"2026-09-11T04:13:26.000Z","updatedAt":"2026-09-11T04:13:26.000Z"},"cluster":{"id":"c_9531f7239a1aa2f9f0744f7e","canonicalTitle":"OpenAIが音声会話AI「GPT-Live-1」のAPIをリリース","representativeArticleId":"a_d5b944fbca16c18a260203b6","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"GPT-Live-1\"],\"studios\":[\"OpenAI\"],\"people\":[],\"type\":\"announcement\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-11T03:21:00.000Z","lastSeenAt":"2026-09-11T03:21:00.000Z","updatedAt":"2026-09-11T04:13:21.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260911-gpt-live-1/","title":"OpenAIが音声会話AI「GPT-Live-1」のAPIをリリース"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["GPT-Live-1"],"studios":["OpenAI"],"people":[],"type":"announcement","domain":"other","is_roundup":false},"keyFacts":null}