OpenAI Codex changelog

Codex CLI 0.166.0 adds GPT-6.1 Terra to Vertex AI and Bedrock catalogs

Codex CLI 0.166.0 adds GPT-6.1 Terra to the bundled, Vertex AI, and Amazon Bedrock model catalogs.

Who is affected:

Codex users on Vertex AI or Bedrock can select GPT-6.1 Terra.

What to do:

Update to Codex CLI 0.166.0 to see the model in your catalog.

Codex CLI 0.166.0 adds transcript selection and codex doctor --network-only

Codex CLI 0.166.0 adds keyboard-driven transcript selection, codex queue --resume, clearer safety-block explanations with safer follow-up prompts, and codex doctor --network-only for network diagnostics.

Who is affected:

Codex CLI users get new terminal navigation and diagnostics features.

What to do:

Run npm install -g @openai/codex@0.166.0 to update.

OpenAI API, Codex and ChatGPT Work purchasable through Oracle Marketplace

Oracle customers in the U.S. can buy access to the OpenAI API, Codex and ChatGPT Work through Oracle Marketplace. Purchases use existing procurement processes and eligible Oracle Universal Credits.

Codex CLI 0.165.0 adds a Google Cloud Vertex AI provider

Codex CLI 0.165.0 adds a built-in Vertex AI provider set with model_provider = "gcp" and adds GPT-6.1 Terra to the model catalogs. It also turns on reasoning effort changes during a conversation by default and makes memory v2 the default for fresh profiles.

Who is affected:

Codex CLI users who want Google Cloud models or who start fresh profiles are affected.

What to do:

Run npm install -g @openai/codex@0.165.0 to update.

GPT-6.1 Terra arrives in ChatGPT Work and Codex

GPT-6.1 Terra is available in ChatGPT Work and Codex on Plus, Pro, Business, Enterprise and Edu plans. It is not available in Chat and does not support UAE inference residency.

Who is affected:

Users of Codex and ChatGPT Work on paid plans can now pick a fast model with strong image understanding and computer use.

What to do:

Choose GPT-6.1 Terra from the model list in Advanced in the ChatGPT desktop app or in ChatGPT Work on the web.

Codex CLI 0.164.0 adds /presets and inline /model arguments

Codex CLI 0.164.0 adds ten numbered /presets slots for reusable prompts and slash commands. It also lets users set model, reasoning effort, speed and permission profiles with inline /model and /permissions arguments, and enables the Amazon Bedrock setup wizard by default.

Who is affected:

Codex CLI users get faster model and permission switching and reusable prompts.

What to do:

Run npm install -g @openai/codex@0.164.0 to update.

OpenAI models and Codex coming to Google Cloud

OpenAI and Google Cloud announced OpenAI frontier models and Codex workflows in Model Garden through Google Cloud Marketplace.

GPT-6.1 Sol arrives in Codex and ChatGPT Work

GPT-6.1 Sol rolled out to Codex and ChatGPT Work for Plus, Pro, Business, Enterprise and Edu. Free and Go were not included at launch.

Who is affected:

Codex and ChatGPT Work users.

What to do:

Try gpt-6.1-sol for long-running work.

GPT-6 Sol and Luna roll out in Codex and ChatGPT Work

GPT-6 Sol and GPT-6 Luna rolled out to Codex and ChatGPT Work for Plus, Pro, Business, Enterprise and Edu at lower token prices than GPT-5.6. Free and Go get Luna in the desktop app. They are not available in ChatGPT Chat.

Who is affected:

Codex and ChatGPT Work users.

What to do:

Pick gpt-6-sol or gpt-6-luna. Enterprise admins must enable them.

Codex moves into the ChatGPT desktop app

Codex became part of the ChatGPT desktop app on macOS and Windows. Existing Codex app users keep their projects and settings.

Who is affected:

Codex desktop app users.

What to do:

Update the app. Settings carry over.

OpenAI models, Codex and Managed Agents on AWS

OpenAI announced its GPT models, Codex and Managed Agents on AWS.

GPT-5.5 available in Codex and recommended for most tasks

GPT-5.5 became available in Codex as the recommended choice for most Codex tasks once it appears in the model picker.

Who is affected:

Codex users.

What to do:

Select gpt-5.5 in Codex.

Codex SDK released with Codex general availability

OpenAI released the Codex SDK for TypeScript when Codex became generally available. It lets developers run the same agent that powers the Codex CLI inside their own tools and workflows.