Cursor errors / Auth
The model does not work with your current plan or API key
Cause
The selected model is restricted to a higher tier, usage-based billing is off, or a BYOK key is routed through an incorrect base URL.
Fix
In Settings > Models, select a model your plan supports (free tier excludes several frontier models). Under API Keys, disable 'Override OpenAI Base URL' if enabled (it breaks Anthropic key routing). Enable usage-based billing for on-demand premium models. Verify the BYOK key is in the correct provider field.
Part of the Automation Error Index — Cursor errors: browse all.
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