OpenAI Codex CLI rust-v0.159.1

OpenAI Codex CLI rust-v0.159.1 was released on September 29, 2026.

Summary

OpenAI Codex CLI rust-v0.159.1 now defaults to GPT-6.1 Sol, a more powerful model that works across all your catalogs including Amazon Bedrock. This upgrade brings faster, smarter code suggestions right out of the box. Check the full changelog to see what else improved under t...

Release Context

This was the 100th OpenAI Codex CLI release of 2026 tracked by Havoptic.
It shipped 1 day after OpenAI Codex CLI rust-v0.159.0 (September 29, 2026).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

Claude Code v2.1.288 (October 2, 2026)
Antigravity CLI v1.2.15 (October 2, 2026)
Grok Build v1.0.49 (October 2, 2026)
Grok Build v1.0.48 (October 2, 2026)
Factory Droid v0.232.0 (October 2, 2026)

Compare OpenAI Codex CLI

Release Notes

New Features - Added GPT-6.1 Sol as the default model in the bundled catalog and Amazon Bedrock Mantle and Runtime catalogs. (49323, 49342) Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.159.0...rust-v0.159.1 - 49323 [0.159] Prepare 0.159.1 release backports @andrewgu-oai - 49342 [0.159] Backport GPT-6.1 Sol Bedrock catalogs @celia-oai

View original release

Other Recent OpenAI Codex CLI Releases

rust-v0.169.0 (November 13, 2026)
rust-v0.168.0 (November 13, 2026)
rust-v0.167.2 (November 11, 2026)
rust-v0.167.1 (November 10, 2026)
rust-v0.167.0 (November 6, 2026)

Upgrading from rust-v0.159.1? See all 16 releases since.

All OpenAI Codex CLI releases · All AI coding tool releases on Havoptic