OpenAI has updated the model used in ChatGPT's voice mode, launching a feature called GPT‑Live that can delegate harder tasks to a larger model running in the background.
How GPT‑Live works
According to OpenAI, GPT‑Live hands off tasks that require web search, deeper reasoning, or more complex work to a "frontier" model running behind the scenes. At launch, that background model will be GPT‑5.5; when the company releases newer frontier models, GPT‑Live will be updated to use them. While the background model processes the request, GPT‑Live can continue conversing with the user so the flow of conversation is maintained.
Preview access and prior voice mode
The reporter had preview access to GPT‑Live in the iPhone app for several weeks and found the new model notably improved compared with the prior voice mode. The previous voice mode in the ChatGPT app was based on a GPT‑4o‑era model with a knowledge cutoff sometime in 2024, and the reporter had largely stopped using it because its age and relative limitations reduced its usefulness as a brainstorming partner.
A bug encountered during preview
During the preview period the reporter encountered an unusual bug: the model would interrupt to laugh at things that were not intended as jokes. The behavior felt rude and condescending, so the reporter filed feedback with OpenAI. The company reportedly made some tweaks, and the interrupting laugh now appears less likely to occur.
The reporter identified this transcript excerpt as a possible trigger for the interrupting laugh: "so where are the owls when they're not, like before dusk? The owls exist, right? Are they hiding in holes? Where are they hiding?"
Usage example
The longest conversation the reporter had with the new model lasted a full hour while walking their dog and taking photos of pelicans. They noted they have not yet managed to photograph an owl.
Why this matters
By delegating hard searches and complex reasoning to a stronger background model, GPT‑Live aims to keep voice interactions responsive while accessing more capable, up‑to‑date capabilities. OpenAI's plan to update GPT‑Live with future frontier models means the voice mode may continue to improve as newer models are released.
Summary
GPT‑Live brings background delegation (initially to GPT‑5.5) to ChatGPT's voice mode, allowing the app to handle tougher tasks without interrupting the conversational flow. Early preview users reported improved performance compared with the older GPT‑4o‑era voice model and noted a corrected bug that had caused interrupting laughter.
