OpenAI Codex 0.166.0 released
A feature release adding keyboard-driven transcript navigation, Markdown rendering improvements, GPT-6.1 Terra model support, and various bug fixes.
What changed in 0.166.0
- Navigate transcripts with keyboard using word, line, and page motions, with integrated search and configurable shortcuts.
- Markdown now renders consistently in async questions, choices, answers, and transcript replies.
- Added GPT-6.1 Terra to bundled, Vertex AI, and Amazon Bedrock model catalogs.
- Use
codex queue --resumeto resume unloaded threads after queueing messages; improved safety-block explanations and diagnostics withcodex doctor --network-only. - Fixed thread resumption and forking to preserve settings, local image attachments, and reasoning-token accounting; improved offline TUI recovery.
Summarised by AgentGid from OpenAI's official release notes on GitHub, as reported there; read the original before relying on it. Price, status and release dates come from our daily data.
OpenAI Codex at a glance
| What it is | OpenAI's coding agent, offered as an open-source terminal CLI, an IDE extension, a desktop app and a cloud agent that works on repositories. Users sign in with a ChatGPT account or use an OpenAI API key; with an API key… |
|---|---|
| Latest version | 0.166.0 is the latest stable release we track. |
| Release pace | 8 stable releases in the last 30 days; 0.166.0 came 2 days after the previous one |
| Price | Free + $8/mo. Included in ChatGPT plans: Free $0, Go $8/month, Plus $20/month, Pro from $100/month ($100, $200 or $500 tiers), Business $20/user/month billed annually ($25 monthly), Enterprise … Official pricing ↗ (checked Oct 6, 2026) |
| Live status | Up 6 incidents in the last 30 days on the official status page |
| Usage limit resets | Last reset 3d ago, announced by @thsottiaux on X. All resets |
| Downloads, last 7 days | 27.8M up 15.4% |
| Gid Score | 84 #1 in Terminal coding agents |
OpenAI Codex overview Monthly changelogIs OpenAI Codex down?Usage limitsAlternatives
OpenAI Codex releases around 0.166.0
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