dify - 💡(How to fix) Fix OpenAI-API-compatible provider keeps broken Perplexity Sonar credentials and validation fails [3 comments, 2 participants]

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Dify version

1.14.1

Cloud or Self Hosted

Cloud

Steps to reproduce

1. Add Perplexity Sonar models using OpenAI-API-compatible provider
2. Delete or modify credentials
3. Try reopening credential configuration
4. Reinstall provider
5. Try adding a new Sonar model

✔️ Expected Behavior

Credentials should delete correctly and deleted models should not reappear after reinstalling the provider.

Validation for newly added Sonar models should succeed with valid max token settings.

❌ Actual Behavior

Using the OpenAI-API-compatible provider with Perplexity Sonar models causes broken credential references.

Deleted credentials cannot be removed because Dify says they are still in use, but opening the credential configuration shows: "Credential with id xxx not found"

Additionally, reinstalling the provider causes deleted Sonar models to reappear automatically.

Trying to add a new Sonar model with a new credential also fails validation incorrectly with: "max_tokens must be at least 16 for sonar"

even though max tokens is set properly.

This issue may indicate orphaned credential references remaining in the workspace state after model/provider deletion.

<img width="1282" height="946" alt="Image" src="https://github.com/user-attachments/assets/e1dd1f1f-7bdb-4fff-8bab-fa171ec60541" /> <img width="1267" height="910" alt="Image" src="https://github.com/user-attachments/assets/d1443dbb-1496-467b-a3a0-481a3e410402" /> <img width="1272" height="966" alt="Image" src="https://github.com/user-attachments/assets/e914c50a-6678-46eb-a6cf-517ba58bf08e" />