OpenAI Codex rust-v0.164.0
Codex CLI rust-v0.164.0 adds ten numbered /presets slots for saved prompts and slash commands, inline arguments for /model and /permissions, and enterprise MCP sign-in, plus credential masking in remote Bash sessions and fixes for failed compaction and session resume.
Why it matters
For developers who use OpenAI's open-source coding agent every day, this release cuts repeated typing with saved presets and makes it easier to connect company MCP servers, while keeping secrets out of remote shell output.
What's new
- Save reusable prompts and slash commands in ten numbered /presets slots, with a keyboard menu to pick them.
- Set model, reasoning effort, speed and permission profiles directly with inline /model and /permissions arguments.
- Enterprise MCP connections can authenticate with eligible Codex account grants or a dedicated sign-in, including OAuth clients that need secrets.
- Credentials are masked during supported remote Bash commands and Zsh snapshot sessions, and the Amazon Bedrock setup wizard is now on by default.
- Fixes: failed compaction no longer leaves partial summaries in history, resumed sessions restore their saved thread settings, and Windows proxy authentication now uses Negotiate or NTLM credentials.
Taken from the project's own release notes. Claims about speed or accuracy are the maker's unless stated otherwise.
Quick facts
| Pricing | Included with ChatGPT Plus, Pro, Business, Edu and Enterprise plans, or use an API keynot verified |
|---|---|
| Free or paid | Paid (via ChatGPT plan or API) |
| License | Apache-2.0 |
| Language | Rust |
| Platform | macOS, Linux, Windows; CLI, IDE extension, desktop app |
| GitHub stars | ★ 130,754 (as of 2026-10-24) |
| Maker | OpenAI |
Links
- Official site: https://developers.openai.com/codex
- Repository: https://github.com/openai/codex
- Release notes: https://github.com/openai/codex/releases/tag/rust-v0.164.0
- Docs: https://developers.openai.com/codex/ide
Related ranking
See how established tools compare in Best AI Coding Tools for Developers. New releases aren't scored until we review them against the rubric.
What we couldn't verify
- quick_facts.pricing (plan list carried from the earlier release, not re-checked)
Checked 2026-10-24 from the release notes's own pages. Prices and star counts change, so confirm on the official site. Listing here is not a ranking or an endorsement.
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