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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
Weights & Biases

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 Weights & Biases when…

  • •You're running ML experiments alongside LLM work
  • •Model training tracking and artifact management are needed
  • •You're a data scientist who uses Weights & Biases already
Field
Langfuse
Weights & Biases
Category
LLM Infrastructure
Prompt & Eval
Type
OSS
SaaS
Free Tier
✓ Yes
✓ Yes
Plans
Cloud: $59/mo
Teams: $50/user/mo
Stars
⭐ 7,000
—

Langfuse

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

Weights & Biases

Industry-standard ML experiment tracking platform with LLM-specific tools for prompt evaluation, fine-tuning monitoring, and dataset versioning.

Langfuse Website ↗GitHub ↗
Weights & Biases Website ↗

Shared Connections (1)

LangSmith

Only Langfuse (26)

CursorClaude CodeOpenHandsCrewAIAutoGenLangGraphLangChainLlamaIndex

Only Weights & Biases (1)

Langfuse
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