Codex: what I’ve logged

Codex comes up in 12 posts of my AI log, from September 2025 to October 2026, and each item below links to the primary source. The sources come from OpenAI, filed under frontier, open weights and image, video, world.

Items that mention Codex

OpenAI 12 Oct 2026
Codex 0.162.0
Adds managed Git worktree tools, task pinning in the Command Center and a signed PowerShell installer for Windows.
Primary source
OpenAI 6 Jul 2026
Codex joins the ChatGPT desktop app
July 9 brought Codex into the ChatGPT desktop app on macOS and Windows, with PR Chat and in-app editing.
Primary source
OpenAI 15 Jun 2026
Record and Replay in the Codex app
June 18 lets Codex on macOS turn a workflow you demonstrate into a reusable skill, with handoff between local and remote hosts.
Primary source
OpenAI 8 Jun 2026
Codex app 26.608 and Import from Claude Code
June 9 added flows that import setups from Claude Code and Claude Cowork, with a revamped plugins screen.
Primary source
OpenAI 25 May 2026
Computer use and remote control for Codex on Windows
The May 29 update brings computer use and remote control to Windows.
Primary source
OpenAI 11 May 2026
Codex in the ChatGPT mobile app
From May 14 the ChatGPT mobile app can drive Codex running on a connected Mac.
Primary source
OpenAI 4 May 2026
Codex Chrome extension
Codex can now work inside the user's own Chrome, launched May 7.
Primary source
OpenAI 13 Apr 2026
Codex app 26.415: in-app browser and computer use on macOS
The April 16 Codex update adds an early in-app browser and computer use on macOS, not offered in the EEA, UK or Switzerland at launch.
Primary source
OpenAI 9 Feb 2026
Codex model list (GPT-5.3-Codex-Spark)
OpenAI released a very fast Codex variant served on Cerebras hardware, tuned for quick interactive edits.
Primary source
OpenAI 2 Feb 2026
GPT-5.3-Codex
OpenAI's latest Codex model, released the same day as Opus 4.6 and aimed at long-running coding tasks.
Primary source
OpenAI 2 Feb 2026
Codex changelog (Codex app for macOS)
OpenAI launched a desktop Codex app for running several coding agents side by side.
Primary source
OpenAI 15 Dec 2025
GPT-5.2-Codex
OpenAI's agentic coding model, built for long professional software jobs and defensive security work, landed about a week after GPT-5.2.
Primary source
OpenAI 15 Sep 2025
Codex upgrades with GPT-5-Codex
The Codex CLI repo is where the GPT-5-Codex model, tuned for long agentic coding runs, is wired into the terminal.
Primary source