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123 tools · 10 stacks
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AI tools are all over the place. This is the full landscape — 123 tools across 12 categories, mapped and connected. Ready to narrow it down? Build your stack →

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
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These tools competes with
Langfuse
vs
Logfire

Choose Langfuse when…

  • •You want open-source LLM observability
  • •Self-hosting your tracing stack is important
  • •You need cost tracking across models and users

Choose Logfire when…

  • •You want Pydantic-native observability for Python apps
  • •Structured logging and tracing in one tool matter
  • •You're already using Pydantic in your Python stack
Field
Langfuse
Logfire
Category
LLM Infrastructure
LLM Infrastructure
Type
OSS
SaaS
Free Tier
✓ Yes
✓ Yes
Plans
Cloud: $59/mo
Team: Paid
Stars
⭐ 7,000
—

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with clean UX.

Logfire

OpenTelemetry-based observability platform built by Pydantic. Tight integration with PydanticAI for tracing agent runs and LLM calls with structured data.

Langfuse Website ↗GitHub ↗
Logfire Website ↗

Shared Connections (1)

Helicone

Only Langfuse (26)

CursorClaude CodeOpenHandsCrewAIAutoGenLangGraphLangChainLlamaIndex

Only Logfire (2)

PydanticAILangfuse
See full comparison in Explore →