[Bug]: Title generation not working for all grok-3 and grok-4 models

[alex-lawlab]

What happened?

https://github.com/danny-avila/LibreChat/blob/f1b29ffb45134804e27b37322d1bfb89130c00a9/api/app/clients/OpenAIClient.js#L722C1-L729C7

According to official docs, presencePenalty and frequencyPenalty in requests will results in errors for Grok models. However, in generating titles, we are sending those in the requests, without using dropParams to drop it.

I think these two params are less useful nowadays, and we could potentially just remove them to make title generation work again in Grok models.

I've tried using the grok-2-vision model in the titleModel and title generation works again, because grok-2 series do support these params.

Version Information

ghcr.io/danny-avila/librechat-dev latest c0fa16ffb0d2 31 hours ago 1.11GB

Steps to Reproduce

1. Use xAI custom endpoint. Use grok-3 or grok-4 in the model in agents. Set titleModel to current_model or grok-3-mini
2. Start a conversation

Expected: title generated works
Actual: Title generation failed, no errors. Just become "Untitled" after a while.

What browsers are you seeing the problem on?

Safari

Relevant log output

No relevant error logs. And when turning on debug logs, just saying title generation started and completed. No errors.

Screenshots

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[dojoca]

I'm experiencing the same problem with locally hosted deepseek reasoner and chat models.

Error from logs:
2025-07-17 05:27:50 error: [api/server/controllers/agents/client.js #titleConvo] Error registry.ollama.ai/library/deepseek-v2:16b does not support tools

I am able to generate titles in OpenWebUI so is there a workaround?