Opus 4.5 Model suddenly disappered

[tw-kang01]

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I was working with Copilot using Opus 4.5 in the VS Code environment, but it suddenly disappeared after I shut down and restarted my computer. I know that the Pro plan supports it, so why is this happening?

[Kryptonite778]

Possible Explanation for Opus 4.5 Disappearing in VS Code

It looks like this issue is happening to many users right now, not just you. GitHub recently made some backend changes to Copilot’s available model list, and Claude Opus 4.5 has been temporarily removed or restricted inside the VS Code Copilot extension.

Even if you’re on the Pro plan, model availability isn’t always guaranteed—GitHub sometimes rotates models, limits high-cost ones, or disables them during maintenance. This can cause them to suddenly disappear after a restart.

A few things you can try

1.Sign out and sign back into GitHub Copilot in VS Code.
2.Run “Copilot: Reset User Data” from the Command Palette.
3.Make sure your GitHub Copilot extension is fully updated.
4.Check if the model appears on the Copilot web interface (https://copilot.github.com/) to confirm if it’s a local VS Code issue or a global removal.

If the model isn’t available anywhere, it likely means GitHub has temporarily pulled Opus 4.5 from the VS Code environment. This seems to be a known, ongoing rollout issue rather than a problem with your account or machine. Hopefully GitHub will re-enable it soon, but for now it seems intentional on their side. In the meantime, Claude Sonnet 4.5 and other available models should continue working normally.

[Nixxx19]

Hey! @tw-kang01

It looks like nothing is wrong with your subscription — this is usually just a temporary sync issue between VS Code and the Copilot model list.

A few things you can try that normally bring back Opus 4.5:

1. Reload the Copilot extension
   VS Code → Command Palette → “Developer: Reload Window”.

2. Sign out and back into GitHub in VS Code
   (This forces Copilot to refresh your model entitlements.)

3. Go to “Manage Models…” in the dropdown
   Sometimes the model is still available there but not shown in the quick menu.

4. Check for VS Code or Copilot extension updates
   An outdated extension can temporarily hide newer models.

5. If you’re behind a VPN or corporate network
   Copilot may fail the entitlement check and fall back to fewer models.

Most users report the model reappears after a reload or re-authentication.
If it still doesn’t come back, your best next step is to file a support ticket — but in most cases this is just a momentary sync glitch.

Let me know if any of these steps fix it!

[lod911]

A few things you can try that normally bring back Opus 4.5:

Reload the Copilot extension
VS Code → Command Palette → “Developer: Reload Window”.

Sign out and back into GitHub in VS Code
(This forces Copilot to refresh your model entitlements.)

Go to “Manage Models…” in the dropdown
Sometimes the model is still available there but not shown in the quick menu.

Check for VS Code or Copilot extension updates
An outdated extension can temporarily hide newer models.

If you’re behind a VPN or corporate network
Copilot may fail the entitlement check and fall back to fewer models.

Got the same problem here. Yesterday everything was fine. Unfortunately this advices did not help. I restarted everything, new sign in, even reinstall the GitHub Copilot Chat Extension did not help. I see in https://github.com/settings/copilot/features, that "Anthropic Claude Opus 4.5" is enabled (disable>enable did also not help), so generally its available, right?

Is this a general problem or only for a few users?
@Nixxx19 : Can you select Opus 4.5 in VS Code as Model?

[ishanrajsingh]

Based on recent reports across multiple GitHub discussions, Claude Opus 4.5 has been temporarily removed from VS Code's Copilot extension as of December 2025. This is affecting all Pro plan users globally, not just your account.

What's Happening
GitHub appears to have made backend changes to model availability in VS Code. While Opus 4.5 still shows as "enabled" in your Copilot Features settings, it's not currently accessible through the VS Code extension's model selector.

Current Workarounds
Use Copilot Web Interface: Opus 4.5 may still be available at copilot.github.com if you need it urgently

Alternative Models: Claude Sonnet 4.5 and GPT-4o remain fully functional in VS Code as temporary replacements

Monitor Updates: Check the VS Code Copilot extension changelog for when Opus 4.5 is re-enabled

This appears to be an intentional rollout change rather than a bug with your installation. The troubleshooting steps others suggested (reloading, re-authenticating) won't resolve this since it's a server-side model availability issue.​