GPT-Live 1 (GA)
GPT-Live 1 is OpenAI’s full-duplex voice model, generally available in the API since September 10, 2026.
- Lab
- OpenAI
- Release date
- Status
- Generally available
- API model ID
- gpt-live-1
OpenAI’s API changelog for September 10, 2026 says GPT-Live 1 (gpt-live-1) is generally available in the API through the v1/live/sessions endpoint. It is built for full-duplex voice conversations that can continue while a backend model or agent handles reasoning and tools, either through Responses delegation with an OpenAI model or client delegation to the developer’s own backend.
- Modalities
- Speech in and speech out (full-duplex voice)
- Availability
- OpenAI API (v1/live/sessions).
- Official source
- developers.openai.com
- Last checked
Questions
When did GPT-Live 1 become generally available?
OpenAI’s API changelog dates general availability to September 10, 2026.
What is GPT-Live 1 for?
Full-duplex voice conversations that continue while a backend model or agent handles reasoning and tools.
Which endpoint does it use?
v1/live/sessions.Source
Release dates, model IDs and limits come from each lab’s own announcement, changelog, documentation or deprecations page, linked on every model with the date it was last checked. How we pick and check sources: editorial standards.