codex - 💡(How to fix) Fix 403 Forbidden error in the middle of normal usage

Just started getting this error during normal usage: Error running remote compact task: unexpected status 403 Forbidden: Unknown error, url: Started a new instance of codex in another shell window, still a 403 error preventing use.

TL;DR

The 403 Forbidden error when running the remote compact task may be related to authentication or permission issues with the Codex CLI.

Guidance

• Verify the business license credentials and subscription status to ensure they are valid and active.
• Check the Codex CLI documentation for any specific requirements or restrictions on using the gpt-5.4-mini medium model with a business license.
• Investigate if there are any known issues or updates related to the 0.121.0 version of the Codex CLI that may be causing the 403 error.
• Try running the Codex CLI with a different model or version to see if the issue is specific to the gpt-5.4-mini medium model.

Notes

The issue may be related to the business license or subscription, but without more information about the license and subscription details, it's difficult to provide a more specific solution.

Recommendation

Apply workaround: Try using a different model or version of the Codex CLI to see if the issue persists, as this may help identify if the problem is specific to the gpt-5.4-mini medium model or a more general issue with the 0.121.0 version.