Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Request failed with status code 400: [{ “error”: { “code”: 400, “message”: “Invalid JSON payload received. Unknown name “top_k”: Cannot find field.…

This issue should be fixed now. Please let me know if it still persists.

Still? Ah, I was just going to try again.

Got the same problem with my own google API key. Meanwhile gemini 2.5-Pro is working just fine!

I have the same problem, seems they are not calling the new api correctly.

yes same Request failed with status code 400: [{ “error”: { “code”: 400, “message”: “Invalid JSON payload received. Unknown name “top_k”: Cannot find field.”, “status”: “INVALID_ARGUMENT”, “details”: [ { “ @type ”: “ type.googleapis.com/google.rpc.BadRequest” , “fieldViolations”: [ { “descrip…

Also have this same error :upside_down_face:

ya same here, please @cursor fix this!! [image]

[Screenshot 2025-11-22 at 11.59.57] I thought I am using my google tier 3 api key but i was using cursor included all time.. i added my model , enabled my api key why cursor not letting us using our keys ? this is a big scam , you thought you are using your api key untill you see usage dashboard. …

btw i am not trying to get all benefits from cursor just paying like 20 dollar, i am ultra plan user and thinking about cancel my subscription.

Why using api key is impossible?

Support Bug Reports

hmeng (Haris M) November 23, 2025, 9:35am 43

there is a dedicated thread for it Claude 4.5 Thinking model returning 404 errors in Cursor 2.0.69

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Gemini 2.5 Pro - Own API Key - Not Working Bug Reports	79	1389	September 1, 2025
Unable to add Google API Key Bug Reports	35	2702	May 3, 2025
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Claude 4.5 Thinking model returning 404 errors in Cursor 2.0.69 Bug Reports	35	1902	December 19, 2025
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Why using api key is impossible?

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