OpenAI Codex CLI rust-v0.153.3

OpenAI Codex CLI rust-v0.153.3 was released on .

Summary

OpenAI Codex CLI rust-v0.153.3 now supports GPT-6-Astra through Amazon Bedrock, giving you access to a powerful new model option. We've also fixed how async questions work with Astra to ensure smooth, text-based interactions. Check the full changelog to see all the details.

Release Context

  • This was the 88th OpenAI Codex CLI release of 2026 tracked by Havoptic.
  • It shipped 1 day after OpenAI Codex CLI rust-v0.153.2 (September 3, 2026).
  • OpenAI Codex CLI: ships every 1 days — 14 releases in the last month.

Why it matters: GPT-6-Astra Now Available on Amazon Bedrock.

Because we are beyond happy to have Astra rolled out today ahead of schedule and you have been super patient with us (not really, but it’s ok!)… we will do the full banked reset today too for all… — Tibo

Shipped around the same time

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

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Release Notes

New Features - Added GPT-6-Astra to the Amazon Bedrock model picker for Mantle and Runtime global/US routes. (42805) Bug Fixes - Corrected GPT-6-Astra’s guidance for asynchronous clarification questions to use the supported tool and recognize that it accepts text only. (42809) Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.153.2...rust-v0.153.3 - 42805 [0.153 hotfix] Add GPT-6-Astra to Amazon Bedrock catalogs @celia-oai - 42809 [0.153 hotfix] Update Astra async-question guidance @rhan-oai

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