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

Support Bug Reports
5

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 want to use Cursor Pro models
  • Turn it back on only when you’re using custom models via your Base URL
  • Switch it manually depending on which model you’re using

A similar issue is discussed here: Cursor Models Fail When Using BYOK OpenAI Key with Overridden Base URL (GLM-4.7)

The team is working on a fix.

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