Cursor / Cursor
Cursor IDE 'AI Model Not Found — Model name is not valid block'
Fix Cursor IDE model loading error caused by broken auto-mode model mapping in version 2.4.7+; ghost models fail to load Includes evidence for Cursor troubleshooting demand.
- Category
- Cursor
- Error signature
AI Model Not Found: Model name is not valid block- Quick fix
- Compare the failing environment with a known working setup, then change one configuration value at a time.
- Updated
What this error means
AI Model Not Found: Model name is not valid block is a Cursor failure pattern reported for developers trying to fix cursor ide model loading error caused by broken auto-mode model mapping in version 2.4.7+; ghost models fail to load. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.
Why this happens
dredyson.com detailed guide documents specific error ‘AI Model Not Found - Model name is not valid block’ triggered by Cursor 2.4.7+ Auto Mode attempting to load non-existent models from broken autoModels.json config. Affects paying Cursor subscription users unable to use AI coding features. DEBUG logs show ModelLoader attempting to load ‘block-v2-32k’ which doesn’t exist in registry. Category: Cursor per mapping rules. Not a duplicate of existing ‘model not available’ — this is a distinct config corruption variant.
Common causes
- dredyson.com detailed guide documents specific error ‘AI Model Not Found - Model name is not valid block’ triggered by Cursor 2.4.7+ Auto Mode attempting to load non-existent models from broken autoModels.json config. Affects paying Cursor subscription users unable to use AI coding features. DEBUG logs show ModelLoader attempting to load ‘block-v2-32k’ which doesn’t exist in registry. Category: Cursor per mapping rules. Not a duplicate of existing ‘model not available’ — this is a distinct config corruption variant.
Quick fixes
- Confirm the exact error signature matches
AI Model Not Found: Model name is not valid block. - 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.
Sources checked
Evidence note: dredyson.com detailed guide documents specific error ‘AI Model Not Found - Model name is not valid block’ triggered by Cursor 2.4.7+ Auto Mode attempting to load non-existent models from broken autoModels.json config. Affects paying Cursor subscription users unable to use AI coding features. DEBUG logs show ModelLoader attempting to load ‘block-v2-32k’ which doesn’t exist in registry. Category: Cursor per mapping rules. Not a duplicate of existing ‘model not available’ — this is a distinct config corruption variant.
Related errors
- Cursor
FAQ
What should I check first?
Start with the exact AI Model Not Found: Model name is not valid block text and the smallest action that reproduces it.
Can I ignore this error?
No. Treat it as a failed Cursor workflow until the root cause is understood.
Is this guaranteed to have one fix?
No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.
How do I know the fix worked?
Rerun the same command, editor action, or request. The fix is working when that action completes without AI Model Not Found: Model name is not valid block.