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Lunary vs W&B Weave

Lunary

7.1#13 in ai agent observability toolsFrom $20 a month
WebAPISelf-hosted
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W&B Weave logo

W&B Weave

8.7#1 in ai agent observability toolsFrom $60 a month
Free planiOSWebAPILinux
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What both publish

FactLunaryW&B Weave
Documentation depthThe documentation index contains installation guides, provider integrations, feature guides, security material, self-hosting instructions and a large API reference.The support center lists a dedicated Weave section with 16 articles and eight tags.
EvaluationsThe evaluation product compares models, settings and prompts against datasets and can run from a dashboard or CI pipeline.An imperative evaluation API compares application or model changes with visualizations intended to expose regressions.
HeadquartersSan Francisco, California, United StatesSan Francisco, California, United States
IntegrationsThe integrations directory lists Anthropic, Flowise, LangChain, OpenRouter, IBM WatsonX, Mistral, Grok, Fireworks AI, Ragas, Gemini, AWS Bedrock, OpenAI, Azure OpenAI, LiteLLM and other sources.The deployment guide lists integrations for OpenAI, Anthropic, Cohere, Mistral, LangChain, LlamaIndex, DSPy, Google Gemini, Amazon Bedrock, Together and Groq.

Lunary plans

  • Team$20 a month
  • EnterprisePriced on request

W&B Weave plans

  • FreeFree
  • Pro$60 a month
  • EnterprisePriced on request

Pick Lunary if…

Lunary suits enterprise teams and developers operating LLM applications who need tracing, analytics, prompt management, or evaluations. Self-hosting may suit customers wanting control of their data.

Pick W&B Weave if…

Weave suits teams developing and monitoring production AI agents that need tracing, evaluations, and model or prompt comparisons. It also fits teams that use Python or TypeScript libraries or send OpenTelemetry traces.

Charts they share