These tools integrates with

LangfusevsBraintrust

OSS LLM engineering platform (acquired by ClickHouse, Jan 2026) versus AI evaluation platform with datasets and prompt mgmt

Compare interactively in Explore →

Choose Langfuse when…

  • •You want open-source LLM observability
  • •Self-hosting your tracing stack is important
  • •You need cost tracking across models and users

Choose Braintrust when…

  • •You want eval-first development with a full platform
  • •Prompt experiments and dataset management are central
  • •You're building eval pipelines alongside your product

Side-by-side comparison

Field
Langfuse
Braintrust
Category
Observability
Observability
Type
Open Source
Commercial
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
Team: Paid
GitHub Stars
⭐ 7,000
—
Health
●95 — Active
—

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with broad framework support. Acquired by ClickHouse in January 2026; OSS core continues with deeper ClickHouse-backed analytics.

Website ↗GitHub ↗

Braintrust

End-to-end evaluation platform for AI products. Manage datasets, run evals, and track prompt versions across experiments in a clean interface.

Website ↗

Shared Connections1 tools both integrate with

LangSmith

Only Langfuse (30)

Claude CodeCrewAICursorLangGraphLangChainOpenHandsAutoGenLlamaIndexDifyMastra

Only Braintrust (1)

Langfuse

Explore the full AI landscape

See how Langfuse and Braintrust fit into the bigger picture — 235 tools, 543 relationships, all mapped.

Open in Explore →