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Compare observability & evals

Braintrust vs Langfuse

Two observability & evals tools for AI agents, side by side. Facts come from each tool's own site.

Braintrust

braintrust.dev

Observability and evals platform for production agents.

New
Visit Braintrust

Langfuse

langfuse.com

Open-source tracing, evals, and observability for agents.

Open sourceNew
Visit Langfuse
Braintrust compared with Langfuse
BraintrustLangfuse
What it doesObservability and evals platform for production agents.Open-source tracing, evals, and observability for agents.
In their wordsBraintrust - The active observability platform for agentsLangfuse: Open Source Agent Evals & Observability
Open sourceNoYes
Websitebraintrust.devlangfuse.com
Link checked2026-10-162026-10-16

More options:Alternatives to BraintrustAlternatives to LangfuseGuide: Best observability and eval tools for AI agents

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