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Tag

evals

6 catalogue entries use this topic; each Project's license policy is labeled separately.

Langfuse

LangfuseAIOpen

Open-source LLM observability, evals, and prompt management

Stars35.3K
Commitjust now
LicenseMIT

Langfuse is an open-source platform for tracing, evaluating, and improving LLM applications and AI agents, with prompt management and experiments built in.

Alternative toArize Phoenix
Arize Phoenix

Arize PhoenixAI

Open-source tracing, evals, and prompt tools for LLM apps

Stars11.7K
Commitjust now
LicenseElastic-2.0

Arize Phoenix is a self-hosted observability platform for LLM apps with tracing, evaluations, datasets, and a prompt playground.

LangWatch

LangWatchAIOpen

Open-source agent observability, evals, and AI governance

Stars4,937
Commitjust now
LicenseApache-2.0

LangWatch is an open-source observability and evaluation platform for AI platform teams, covering LLM operations, coding-assistant usage, AI gateway routing, and AI governance in one place.

Alternative toLangfuse
Logfire

LogfireAIOpen

AI-native observability from the Pydantic team, joining LLM calls with telemetry

Stars4,511
Commitjust now
LicenseMIT

Logfire is Pydantic's AI-native observability platform for debugging AI applications in production, built on OpenTelemetry so one timeline covers agent model calls, tools, services, databases, and hosts.

Alternative toLangfuseHyperDX
Laminar

LaminarAIOpen

Open-source tracing, evals, and observability for AI agents

Stars3,373
Commitjust now
LicenseApache-2.0

Laminar is an open-source observability platform purpose-built for AI agents, with OpenTelemetry-native tracing, evaluations, and behavior monitoring built in.

Alternative toLangfuse
OpenLIT

OpenLITAIOpen

Open-source OpenTelemetry observability for LLM apps and AI agents

Stars2,842
Commitjust now
LicenseApache-2.0

OpenLIT is an Apache-2.0 platform tracing and evaluating LLM apps and AI agents over OpenTelemetry, self-hosted with Docker or Kubernetes.

Alternative toLangfuse