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Introducing Respan Router

Lunary vs Sentry (2026)

Updated March 10, 2026

vs

Overview

Rating
10.0 / 10
Rating
10.0 / 10
Product Summary

Lunary is an open-source LLM observability platform for monitoring AI applications in production. It provides request tracing, cost tracking, user analytics, and prompt management with a clean dashboard. Lunary can be self-hosted for data privacy and offers a managed cloud option.

Product Summary

Sentry provides runtime error monitoring and performance observability for AI applications. Its LLM monitoring capabilities track model calls, token usage, and latency alongside traditional error tracking. Sentry helps teams catch and debug issues in production AI pipelines with detailed stack traces and context.

Starting Price
$0Per month
Starting Price
$0Per month
Free Trial
Yes
Free Trial
Yes
Free Version
Yes
Free Version
Yes
Website
Website

Strengths and tradeoffs

What each tool does well, and the limitations to keep in mind.

LunaryLunary

Pros

  • Production-ready platform
  • Good performance
  • Active development
  • Strong features

Cons

  • Enterprise pricing varies
  • Setup complexity
  • Learning curve required
SentrySentry

Pros

  • Developer-friendly platform
  • Production-ready
  • Good performance
  • Active development

Cons

  • Enterprise pricing varies
  • Setup complexity
  • Learning curve

Compare Lunary and Sentry on your own traffic

10KFree traces/mo
1,000+Models
5 minSetup

Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.

Try Respan free

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