ClaimArticle · 2:56 — 5:40

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. ✦ AI generated

Nick Baumann · Lenny's Newsletter · 2026-08-03 · original ↗

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[No verbatim transcript available — source provides only the show notes. Chapter: 'What's new in Codex.' Narration: 'Nick walks me through several features that have launched or evolved recently.']

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✳ ChatGPT ✳ Codex ◉ Nick Baumann

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Evidence · 1

ChatGPT Codex Voice doesn't just answer questions — it can actually operate your computer while you keep talking, running several tasks in parallel via separate threads.Claire · Lenny's Newsletter · conf 85%

Context · 1

The whole PR review agent was built in Codex with a single prompt and a few steering turns, and using Chrome browser use let me configure the Slack bot and GitHub app without manually clicking through setup screens.Claire Vo · Lenny's Newsletter · conf 60%

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provides context → Thread-forking is one of Codex's most powerful features: it can open a new thread, branch from an existing one, or pull context from previous conversations on its own, without the user manually organizing everything first.Claire · Lenny's Newsletter gives example → In a single live voice conversation, Codex can delegate a flight search, hotel booking, and expense report without opening a single app manually.Nick Baumann · Lenny's Newsletter