[robrenaud]

I've been using self hosted langfuse via litellm in a juptyer notebook for a few weeks for some synthetic data experiments. It's been a nice/useful tool.

I've liked having the traces and scores in a unified browser based UI, it made sanity checking experiments way easier than doing the same thing inside the notebook.

The trace/generation retrieval API was brutally slow for bulk scanning operations, so I bypassed it and just queried the db directly. But the is the beauty of open source/self hosted code.

[marcklingen]

Thanks for the feedback, glad that you find Langfuse useful!

Can you create an issue with more details on the API performance problems? We monitor strict SLOs on the public API for Langfuse Cloud and are not aware of any ongoing issues, would love to learn more.