ChatGPT's new full-duplex voice offloads thinking to GPT-5.5
openai launched gpt-live, a full-duplex voice model that listens and speaks simultaneously while offloading reasoning to gpt-5.5 in the background to close the intelligence gap.
openai announced gpt-live, a new voice mode that uses full-duplex architecture to listen and speak simultaneously, mimicking human conversation patterns with interruptions and backchanneling. unlike previous versions, the model offloads web searches and complex reasoning to the gpt-5.5 model in the background, a move that boosts performance on the browsecomp benchmark from 0.7% to 75.2%. the update is available immediately on ios, android, and web for paying and free users, with api access planned for the future, signaling a shift toward multi-model agent architectures that separate conversational flow from cognitive processing.