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This repository was archived by the owner on Mar 23, 2026. It is now read-only.
This repository was archived by the owner on Mar 23, 2026. It is now read-only.

Unable to use Codex agent in VS Code with GitHub Copilot Enterprise subscription #14167

@SentientMatt

Description

@SentientMatt

Type: Bug

I am unable to use the Codex agent in VS Code with an active GitHub Copilot Enterprise subscription because the Codex plugin does not provide a GitHub Copilot sign-in path.

When I try to authenticate the Codex extension, the only available options are:

  • Sign in with ChatGPT
  • Use an API key

There is no option to authenticate using my GitHub Copilot Enterprise subscription, so I cannot use the Codex agent through the subscription I already have.

Expected behavior:
The Codex agent experience in VS Code should either:

  • support authentication through GitHub Copilot Enterprise when that subscription is intended to work with Codex in VS Code, or
  • clearly indicate that GitHub Copilot Enterprise is not supported for this flow.

Actual behavior:
The extension only offers ChatGPT or API key authentication, which blocks use through my Copilot Enterprise subscription.

Environment:

  • VS Code version: 1.111.0
  • Codex extension version: 26.5313.41514
  • OS: Windows 11
  • Also reproduced in WSL
  • Subscription: GitHub Copilot Enterprise

Steps to reproduce:

  1. Install the Codex extension in VS Code.
  2. Attempt to sign in / authenticate the extension.
  3. Observe that the only available auth options are ChatGPT or API key.
  4. Try to use Codex via an existing GitHub Copilot Enterprise subscription.

What I expected:
A GitHub Copilot authentication option, or clear product messaging that this combination is unsupported.

What I saw instead:
No GitHub Copilot sign-in option is available, so I cannot authenticate the Codex plugin with my Copilot Enterprise subscription.

Additional context:
I searched for an existing issue in this repository but did not find an exact match for this authentication path problem.

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