Fixing LibreChat OpenRouter Model Error | Generated by AI
This error occurs when using LibreChat with OpenRouter as the backend, and the selected model (gpt-5-chat or similar) is not available or not properly routed. Here’s a breakdown of the issue and how to resolve it:
Why This Error Happens
- OpenRouter acts as a proxy to various AI models, but not all models are available or enabled by default.
- The error
404 No endpoints found that support tool usemeans the model you selected (gpt-5-chat) is either:- Not supported by OpenRouter.
- Not configured in your LibreChat setup.
- Requires a different provider or API key.
How to Fix It
1. Check Available Models in OpenRouter
- Visit OpenRouter’s model list to see which models are available.
- As of now,
gpt-5-chatis not an official OpenAI model (the latest is GPT-4o). If you meant GPT-4, useopenai/gpt-4or similar.
2. Update LibreChat Configuration
- In LibreChat, go to Settings > Model Selection.
- Choose a model that is supported by OpenRouter (e.g.,
openai/gpt-4,mistralai/mistral-7b, etc.). - If you want to use OpenAI directly, switch the API Provider to OpenAI instead of OpenRouter.
3. Verify API Keys
- Ensure you have a valid OpenRouter API key (if using OpenRouter) or OpenAI API key (if using OpenAI).
- Add the key in LibreChat’s Settings > API Keys.
4. Restart LibreChat
- After changing settings, restart LibreChat to apply the changes.
5. Check LibreChat Documentation
- Refer to LibreChat’s OpenRouter setup guide for detailed instructions.
Alternative Solutions
- If you want to use OpenAI’s models, set the provider to OpenAI and select
gpt-4,gpt-4o, orgpt-3.5-turbo. - If you want to use OpenRouter, pick a model from their supported list.