OpenAIGPT Live

GPT-Live 1

GPT-Live 1 is a conversational voice model that can listen while it speaks. It can delegate reasoning and tools to a separate backend agent.

The voice session and backend work have separate costs

Live sessions cost $0.05 per minute, measured by the second without rounding to a whole minute. Backend model calls and tools are charged separately. The dedicated Live endpoint accepts text and audio, but not images or video.GPT-Live 1 official model documentation

Design for interruptions and unfinished turns

Practical guidance. A voice interface should stop or adjust its speech when the person interrupts. Keep the result of a delegated action separate from the spoken acknowledgment. Measure whether interruptions preserve the intended task and avoid repeated actions.

Specifications & access

GPT-Live 1 specifications
DetailValue and conditions
AccessAPI
Model identifiersgpt-live-1
Input and outputaudio, text in; audio, text outGPT-Live 1 official model documentation
API routesLive (v1/live/sessions)GPT-Live 1 official model documentation