These tools integrates with
LangfusevsPromptFoo
OSS LLM engineering platform versus CLI/library for prompt testing and red-teaming
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 PromptFoo when…
- •You want CLI-first, config-driven LLM evals
- •Running eval suites in CI/CD pipelines is a goal
- •You need red-teaming and safety testing built in
Side-by-side comparison
Field
Langfuse
PromptFoo
Category
LLM Infrastructure
Prompt & Eval
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
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GitHub Stars
⭐ 7,000
⭐ 5,000
Langfuse
Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with clean UX.
Shared Connections3 tools both integrate with
Only Langfuse (24)
CursorClaude CodeOpenHandsCrewAIAutoGenLangGraphLangChainLlamaIndexDifyMastra
Only PromptFoo (2)
LangfuseVellum
Explore the full AI landscape
See how Langfuse and PromptFoo fit into the bigger picture — 123 tools, 304 relationships, all mapped.