A agentindex
Comparison

Galileo vs Langfuse

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

Galileo

Guardrails and evaluation for production LLMs.

  • + Strong on hallucination and safety metrics
  • + Good for regulated industries
  • − Proprietary and enterprise-priced
  • − Less general-purpose tracing

Langfuse

The most-used open-source LLM observability tool.

  • + Open source and self-hostable
  • + Framework-agnostic via OpenTelemetry
  • − Self-hosting ClickHouse is operational work
  • − Eval features trail dedicated eval tools
Spec Galileo Langfuse
Category eval-observability eval-observability
License Proprietary MIT
Open source No Yes
Self-hostable No Yes
MCP support No No
Pricing paid freemium
Starting price Custom Self-host free; cloud tier
Models multi multi
Languages python python, typescript
GitHub stars — 29.8k
Last activity — 2026-06-25