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Arize-ai / phoenix
AI Observability & Evaluation
Helicone / helicone
🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓
Popularity
Repository stars12,180Highest6,271
Fork1,272Highest701
Maintenance
Last push2026-11-072026-10-28
Maintenance notesNot verifiedNot verified
Repository created2022-11-092023-01-31
License & use
LicenseLicense not declaredApache-2.0 · Permissive
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeModel and data evaluationModel and data evaluation
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