Codex: Added built-in Google Cloud Vertex AI provider

What changed

5 points

1. 1

   Added a built-in Google Cloud Vertex AI provider, configured with model_provider = "gcp". Added GPT-6.1 Terra to the model catalogs.

   Official wording · c1 c2

   Added a built-in Google Cloud Vertex AI provider, configured with `model_provider = "gcp"`.

   Added GPT-6.1 Terra to the model catalogs.

2. 2

   Added a repository filter to the session picker and directory grouping to the agent command center, making it easier to navigate sessions across linked worktrees. Added experimental attached thread forks to the app-server API.

   Official wording · c3 c4

   Added a repository filter to the session picker and directory grouping to the agent command center, making it easier to navigate sessions across linked worktrees.

   Added experimental attached thread forks to the app-server API.

3. 3

   Enabled reasoning effort changes during a conversation by default for supported models. Enabled memory v2 by default for fresh profiles and added support for importing external-agent memories into it.

   Official wording · c5 c6

   Enabled reasoning effort changes during a conversation by default for supported models.

   Enabled memory v2 by default for fresh profiles and added support for importing external-agent memories into it.

4. 4

   Prevented queued agent messages from restarting work after an interrupt or a switch to Plan mode. Stopped retrying when a provider reports that a model was not found, preserving its error message.

   Official wording · c7 c8

   Prevented queued agent messages from restarting work after an interrupt or a switch to Plan mode.

   Stopped retrying when a provider reports that a model was not found, preserving its error message.

5. 5

   Closed a marketplace URL validation gap that could allow Git to connect to a different host than the one checked against allowed patterns.

   Official wording · c9

   Closed a marketplace URL validation gap that could allow Git to connect to a different host than the one checked against allowed patterns.

Change details

Fields in this table are taken verbatim from the official text.

Version timeline

This is the only Codex update on this site so far.

1. 2026-10-27CurrentAdded built-in Google Cloud Vertex AI provider

About this tool

Codex

OpenAI’s software-development agent tools with local terminal workflows and cloud task entry points for inspecting, modifying, checking and reviewing projects.

CategoriesAI Coding

View Codex details

Related guides

• AI coding tools: choose by workflow, sign-in and costsChoose an AI coding tool by IDE or terminal workflow, sign-in method and billing limits. Compare six listed tools using official sources; no performance tests.
• gh-address-comments: work through GitHub PR review commentsOfficial OpenAI Codex skill: fetch comments on the current branch's PR with the gh CLI, number them, then fix only the ones you pick; not tested.
• security-best-practices: language- and framework-specific security reviewOfficial OpenAI Codex skill: load security references matching the project's language and framework, then write safer code or a report; not tested.