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Arize-ai / phoenix
AI Observability & Evaluation
langfuse / langfuse
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
Popularity
Repository stars12,18037,105Highest
Fork1,2724,168Highest
Maintenance
Last push2026-11-072026-11-06
Maintenance notesNot verifiedNot verified
Repository created2022-11-092023-05-18
License & use
LicenseLicense not declaredLicense not declared
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeModel and data evaluationModel and data evaluation · Observability · Self-hosted services
TypeApps & systemsApps & systems
SubcategoryOperationsOperations
PlatformNot verifiedNot verified
First collected2026-11-032026-11-03
LanguagePythonTypeScript
License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Measured at 2026-11-06 UTC