Where does the bug appear (feature/product)? Somewhere else… Describe the Bug Hey, I’ve added my Anthropic API key to Cursor to get more usage from Claude, but it doesn’t work consistently. In the screenshot, you can see the error message I’m getting. Cursor is expensive, and this is very disappoin…

Hey, thanks for the report. I can see the error details. It’s a provider error when using your Anthropic API key. Can you click Copy Request Details and share the full request ID? That will really help the engineers pinpoint the issue on their side. Also, for now please check: Credits in your ac…

encountered same issue today, removed external model I added recently and it worked.

I have the same issues when using Open AI Key and override OpenAI Base Url: {“error”:{“type”:“provider”,“reason”:“provider_error”,“message”:“Provider returned 400”,“retryable”:false,“provider”:{“status”:400,“body”:“{“error”:{“message”:“unknown provider for model gpt-5.2”,“type”:“invalid_request_err…

Thanks for the info. When the Override OpenAI Base URL setting is enabled, it affects all models, including Cursor Pro models (like gpt-5.2). Cursor will try to send requests for every model through your overridden Base URL. Fix: Turn off Override OpenAI Base URL in Settings > Models when you wan…

We encountered an issue when using your API key: Streaming error

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user129 (HungHo) January 6, 2026, 3:32am 6

Thanks for the explanation.

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We encountered an issue when using your API key: Streaming error

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