OpenAI launches GPT-Live-1 API for voice agents that listen while they speak

craigsdennis · x · 2026-09-11

OpenAI has made GPT-Live-1 available in the API, bringing ChatGPT-style natural back-and-forth voice conversations to third-party apps. Voice agents can listen while speaking and work with the models and harness developers choose.

Early reactions call it the first truly performant real-time voice option that doesn't require rolling your own infra stack, with predictions it will unlock many new consumer products and possibly entire new app categories.

Related event: OpenAI launches GPT-Live-1 speech model on API with full-duplex conversation(38 posts)→

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