L
Langfuse
On the RadarAI Compliance IndexOpen SourceModel Evaluation & BenchmarkingOpen-source LLM engineering platform (YC W23, MIT license): tracing, LLM-as-judge evals, prompt management, and datasets — the most widely adopted OSS option; part of ClickHouse since Jan 2026.
Last verified
on the radar · vendor-claimed
This is an early-stage listing. All information below is vendor-claimed and has not yet been independently verified by AI Compliance Index. No compliance score is issued and this tool is excluded from rankings and comparisons.
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overview
Open-source LLM engineering platform (YC W23, MIT license): tracing, LLM-as-judge evals, prompt management, and datasets — the most widely adopted OSS option; part of ClickHouse since Jan 2026.
core features
- Open-source LLM engineering platform (YC W23, MIT license): tracing, LLM-as-judge evals, prompt management, and datasets — the most widely adopted OSS option; part of ClickHouse since Jan 2026.
faq
Langfuse — frequently asked questions
- What is Langfuse?
- Open-source LLM engineering platform (YC W23, MIT license): tracing, LLM-as-judge evals, prompt management, and datasets — the most widely adopted OSS option; part of ClickHouse since Jan 2026.
- Does Langfuse have compliance certifications?
- Langfuse does not publicly list specific compliance frameworks in our directory. Confirm the latest posture directly with the vendor at https://langfuse.com.
- How much does Langfuse cost?
- Langfuse is open source, so you can self-host it for free. Managed/cloud tiers may be offered separately.
- Who is Langfuse for?
- Teams working on model evaluation & benchmarking — particularly those that need to evidence AI compliance and security controls.
- Is Langfuse open source?
- Yes — the source code is available on GitHub at https://github.com/langfuse/langfuse.
