ChatGPT Codex Voice + browser + Sites: an expert’s AI workflow | Nick Baumann (OpenAI)

Codex is a fast, agentic coding environment inside ChatGPT, and the new voice interface lets a user run a full session hands-free.

The episode opens with the host introducing Nick Baumann and then moves into what's new in Codex at the 02:56 marker — the voice layer that lets users drive coding sessions without typing.

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ChatGPT Work on mobile introduces Heartbeats, an automation system that runs background tasks for the user.

At the 05:40 marker Nick introduces Heartbeats in ChatGPT Work on mobile, which lets AI run background tasks autonomously.

There is a meaningful trade-off between response latency and the intelligence of the model producing the answer.

At 13:25 Nick discusses the latency-versus-intelligence trade-off in voice-driven agentic workflows, then gives a quick recap of what's been shown so far.

ChatGPT Sites lets a user build and deploy a live website in real time, and this is achievable from the mobile voice experience.

From 15:04 Nick covers voice on mobile and the ChatGPT Sites workflow, showing how to build and deploy a live website through the platform.