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June 19, 2026

Langfuse Assistant

Ben Bachem

The Langfuse Assistant is now in public beta for everyone on Langfuse Cloud. Ask questions about your traces, observations, and metrics in plain language.

The Langfuse Assistant is now available to everyone on Langfuse Cloud. No opt-in, no Feature Preview modal. Open it and start asking questions about your data.

Ask in plain language. For example:

• "Which traces had the highest latency yesterday?"
• "Show me failed generations in the last hour."
• "What's my token spend this week, broken down by model?"

How it works

The Assistant runs on the Langfuse MCP server, the same MCP server you can connect to your own tools. It uses those tools to query your traces, observations, and metrics, then answers in context.

This is the initial release. More capabilities will follow.

The Assistant is Langfuse Cloud only and still labeled Beta. It is free during the Beta, though pricing may change later.