OpenAI is rolling out GPT-Live, a new generation of voice models designed to make speaking with ChatGPT feel closer to a real conversation.
The new system uses a full duplex architecture, allowing GPT-Live to listen and speak at the same time instead of waiting for users to fully stop talking before responding. OpenAI said the model can acknowledge users with short responses, stay quiet when they need time to think, or handle quick back and forth exchanges more naturally.
GPT-Live also separates live conversation from deeper work. When a request requires search, reasoning, or more complex execution, the voice model can delegate the task to a frontier model in the background while keeping the conversation moving.
At launch, OpenAI said GPT-Live will use GPT-5.5 behind the scenes, with future frontier models expected to replace it over time.
The launch powers a new ChatGPT Voice experience across iOS, Android, and ChatGPT.com. GPT-Live 1 will become the default voice model for Go, Plus, and Pro users, while GPT-Live 1 mini will become the default for Free users. OpenAI also plans to bring the models to the API.
