A agentindex
Comparison

Comet Opik vs SigNoz

A like-for-like, spec-level comparison. Both entries are verified against their docs and repo.

Comet Opik

Open-source eval and tracing from Comet.

  • + Open source with self-host option
  • + Backed by Comet's MLOps experience
  • − Smaller community than Langfuse
  • − UI less polished than paid rivals

SigNoz

Open-source OpenTelemetry observability.

  • + Unified app and LLM tracing on OTel
  • + Fully self-hosted, no vendor lock-in
  • − LLM evals via OpenLLMetry, not native
  • − More ops to run than a SaaS
Spec Comet Opik SigNoz
Category eval-observability eval-observability
License Apache-2.0 MIT
Open source Yes Yes
Self-hostable Yes Yes
MCP support No No
Pricing freemium freemium
Starting price Self-host free Self-host free
Models multi multi
Languages python, typescript go, typescript
GitHub stars 19.8k 27.5k
Last activity 2026-06-25 2026-06-25