Comparison

DeepEval (Confident AI) vs OpenLLMetry

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

DeepEval (Confident AI)

Open-source unit tests for LLMs.

  • + Pytest-style DX, fits existing test suites
  • + Open source metric library
  • − Confident AI cloud is proprietary
  • − Setup for custom metrics takes work

OpenLLMetry

OpenTelemetry instrumentation for LLMs.

  • + Vendor-neutral instrumentation
  • + Works with existing observability stacks
  • − Instrumentation only, no UI
  • − Needs a backend like SigNoz or Honeycomb
Spec DeepEval (Confident AI) OpenLLMetry
Category eval-observability eval-observability
License Apache-2.0 Apache-2.0
Open source Yes Yes
Self-hostable Yes Yes
MCP support No No
Pricing free free
Starting price Self-host free Free
Models multi multi
Languages python python, typescript
GitHub stars 16.5k 7.2k
Last activity 2026-06-25 2026-06-25