Describe the Bug I’m using the OpenRouter API but encountering the following error. I added the latest model, anthropic/claude-sonnet-4, but the cursor is still trying to use claude-sonnet-4-20250514, which makes no sense. We encountered an issue when using your API key: the provider was unable to …

I am having the same issue with Cursor on Windows 11 , using the latest build of cursor. Is there a fix for this?

anything update here? I also face this problem

I also can’t use Anthropic API Key need help key already correct try generate 5 times still got same error Unauthorized User API key Request ID: 587701d7-4902-4b43-aa1f-1fc7dd3e0373

this is still happening - can someone at Cursor please fix this! "We encountered an issue when using your API key: Provider was unable to process your request API Error: Request failed with status code 400: {"error":{"message":"claude-sonnet-4-20250514 is not a valid model ID","code":400} }

Cursor is using old claude sonnet 4 model for openrouter

Support Bug Reports

chernistry (chernistry) July 27, 2025, 2:14pm 9

Here’s the workaround that might help Workaround to get Openrouter models working in Cursor

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Cursor is using old claude sonnet 4 model for openrouter

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