OpenAI introduces GPT-Live, a new generation of voice models with full-duplex architecture. The model can listen and speak at the same time and hands off complex tasks to GPT-5.5 in the background.
With GPT-Live, OpenAI is shipping a new class of AI voice models designed to make talking to ChatGPT feel more like a real conversation. Two versions are rolling out worldwide right away. GPT-Live-1 is for paying users on Go, Plus, and Pro plans, while GPT-Live-1 mini is available on free accounts. Both work on iOS, Android, and ChatGPT.com. OpenAI plans to add API access soon, and developers can sign up through a form.
Instead of the old rigid back-and-forth where users speak and the AI responds, GPT-Live uses a full-duplex architecture. The model can listen and talk at the same time, much like a real conversation between people. Earlier this year, Nvidia released a similar open-source model called PersonaPlex.
OpenAI says GPT-Live makes decisions multiple times per second about whether to speak, keep listening, pause, interrupt, or call a tool. The model can use filler phrases like "mhmm" or "got it" to signal it's following along. Users can interrupt, take a moment to think, or ask the model to slow down.
