OpenAI on Wednesday launched GPT-Live, a pair of new voice models that fundamentally redesign how people talk to ChatGPT — replacing the company's existing Advanced Voice Mode with an architecture that can listen and speak simultaneously, much like an actual human conversation.
The two models, GPT-Live-1 and GPT-Live-1 mini, are rolling out globally starting today across iOS, Android, and ChatGPT.com. GPT-Live-1 becomes the default voice model for paid ChatGPT users on the Go, Plus, and Pro tiers, while GPT-Live-1 mini serves free-tier users. OpenAI also plans to bring the models to the API, and developers can sign up to be notified.
The defining technical advance is what OpenAI calls a "full-duplex architecture." In telecommunications, full-duplex means both parties on a phone call can talk and listen at the same time. Applied to AI, it means the model continuously processes incoming speech while generating its own responses — eliminating the awkward pauses and turn-taking that have characterized chatbots until now.
The release marks the third generation of ChatGPT's voice technology in roughly two years — and OpenAI's clearest bid yet to turn its chatbot into something that feels less like querying a search engine and more like talking to a colleague. This positions the firm to compete more directly with voice-native offerings from Google, Amazon, and Apple.
While the technology is a significant leap, full-duplex voice raises new challenges around conversational etiquette and user expectations. A system that can interrupt or speak simultaneously may feel unnatural or intrusive in certain contexts, and OpenAI has not detailed how it handles overlapping speech or handles ambiguous interruptions.