Langfuse (open source)
Visit pageSelf-hosted LLM observability and evaluation. MIT license.
LLM Evaluation, Observability and Quality
Langfuse
Open-source LLM engineering platform. Observability, evals, and prompt management.
About Langfuse
Langfuse is the leading open-source LLM observability platform. Self-host or use Langfuse Cloud. Strong tracing primitives, prompt management, and eval workflows. Popular in privacy-sensitive deployments.
Test, monitor, and grade LLM outputs in development and production. Hallucination detection, regression testing, traceability, and continuous quality measurement.
Products
Langfuse products and platform components
Direct links to the vendor's product pages. Last reviewed 2026-05-07.
Langfuse Cloud
Visit pageHosted version with SOC 2, SLA, and support.
CWS engagement
How CWS works with Langfuse
CWS helps customers evaluate, deploy, and operate Langfuse products as part of an AI security program. Engagements span vendor selection, proof-of-concept design, integration with existing controls, day-2 operations, and exit planning if the fit changes over time.
CWS does not resell Langfuse. The recommendation is honest, evidence-based, and tied to the customer's posture gaps — not to channel economics.
Engage CWS on Langfuse Related — same category
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