The Frontier

Nathaniel Whittemore says OpenAI's Codex app now has full computer use for Mac, allowing it to see, click, and type across any application, including those without APIs. Multiple agents can work in parallel.

Codex introduces an in-app browser with comment mode, letting users click elements for precise context. Nathaniel Whittemore highlights this for front-end iteration, bug reporting, and workflows where pointing is faster than describing.

Nathaniel Whittemore notes Codex now includes native image generation with GPT Image 1.5 and rich file previews in Artifacts Beyond Codes for creating mock-ups and editing images within a single thread.

Pash from OpenAI describes Codex's 'thread over time' feature. Threads persist with history and context, and agents can schedule their own next steps, reducing the overhead of daily catch-up tasks like scanning Slack and email.

Codex now supports project-less threads, which Flavio Adama and Jason Liu argue facilitates unstructured work. Liu calls it 'the new Notes app', allowing users to dive in without first selecting a repository.

Ari Weinstein observes that Codex can operate a GUI as fast as a human. Nathaniel Whittemore cites Aaron Levy of Box who sees this as a leap for knowledge worker agents capable of long background tasks like drafting reports and reviewing contracts.

Nick Bauman of OpenAI advocates for a 'monothread' approach in Codex. He keeps a single, long-lived thread that checks his Slack, Gmail, and GitHub hourly to filter noise into actionable signal, shifting from many short chats to a few persistent workstream threads.

Anthony Kroger and Nick Bauman argue Codex's context compaction is a game-changer. Kroger says he never worries about context windows, and Bauman notes dropping the assumption that compaction degrades results opens new product directions.

Jason Liu provides a recipe for a 'Codex chief of staff'. It uses a local folder vault with an agents.md file, interviews the user to understand responsibilities, and proposes creating project notes and installing plugins like Slack and Gmail.

Nathaniel Whittemore contrasts OpenAI Codex's unified interface with Claude Desktop's segmented one. Codex uses one interface for all tasks, while Claude separates Chat, Cowork, and Code modes, reflecting different bets on user friction versus task specialization.