What this error means
the model default does not work with your current plan or API key is a Cursor failure pattern reported for developers trying to fix cursor ide showing persistent model-unavailable error after switching providers or updating api keys, particularly claude models. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.
Why this happens
Active forum discussion and multiple blog posts confirm this is a recurring Cursor bug. Users report 'model default does not work with your current plan' messages persisting even after re-entering valid API keys. Caused by Auto Mode caching stale model-plan mappings. High commercial value as Cursor Pro users ($20/mo) affected.
Common causes
- Active forum discussion and multiple blog posts confirm this is a recurring Cursor bug. Users report 'model default does not work with your current plan' messages persisting even after re-entering valid API keys. Caused by Auto Mode caching stale model-plan mappings. High commercial value as Cursor Pro users ($20/mo) affected.
Quick fixes
- Confirm the exact error signature matches
the model default does not work with your current plan or API key. - Check the Cursor account, local tool state, and provider configuration involved in the failing workflow.
- Compare the failing environment with a known working setup, then change one configuration value at a time.
Platform/tool-specific checks
- Verify the command, editor, extension, or API client that produced the error.
- Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
- Avoid deleting credentials, local model data, or project settings until the failing scope is clear.
Step-by-step troubleshooting
- Capture the exact error message and the command, editor action, or request that triggered it.
- Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
- Review the source evidence below and compare it with your environment.
- Apply one change at a time and rerun the smallest failing action.
- Keep the working fix documented for the team or deployment environment.
How to prevent it
- Keep provider/tool configuration documented.
- Record non-secret diagnostics such as tool version, provider name, model name, and command path.
- Add a lightweight check before CI or production workflows depend on the tool.