1M context selection broken

[Jurij_Gera]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

For Claude Opus and Gemini 3 Pro models,
1M context cannot be selected.

Steps to Reproduce

Try to select 1M context.

Operating System

Linux

Version Information

Version 3.4.20

Does this stop you from using Cursor

No - Cursor works, but with this issue

[weijia_shao]

same here

[mohitjain (Mohit)]

A couple of things to check here:

Claude Opus (1M context): A bug with the 1M context selector was fixed in a recent update. Since you’re on v3.4.20, you should have that fix. If you’re still unable to select 1M, it may be related to your team’s admin settings. Enterprise teams can configure model access restrictions that limit which model variants are available. I’d recommend checking with your NVIDIA team admin to make sure the Opus 1M variant isn’t restricted in your organization’s admin dashboard.

Gemini 3 Pro: This one is actually expected behavior. Gemini 3 Pro always uses its full 1M context window automatically. There’s no context selector for it because it doesn’t need one — you’re already getting the full 1M context every time you use it.

Let me know if the Opus issue persists after checking with your admin!

[Jurij_Gera]

@mohitjain

cally. There’s no context selector for it because it doesn’t need one — you’re already getting the full 1M context every time you use it.

Claude Opus 1M context works for me now.

Gemini 3.1 Pro tooltip might be outdated, it sill shows “200k context window”