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207 tools · 25 stacks

AI tools are all over the place. This is the full landscape — 207 tools across 17 categories, mapped and connected. Ready to narrow it down? Build your stack →

Team size

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Use case

Stage

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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?
These tools competes with
PromptLayer
vs
Langfuse

Choose PromptLayer when…

  • •You want prompt versioning and request logging
  • •Prompt history, replay, and A/B testing matter
  • •You need visibility into what prompts are running in production

Choose Langfuse when…

  • •You want open-source LLM observability
  • •Self-hosting your tracing stack is important
  • •You need cost tracking across models and users
Field
PromptLayer
Langfuse
Category
Prompt & Eval
LLM Infrastructure
Type
SaaS
OSS
Free Tier
✓ Yes
✓ Yes
Plans
Pro: Paid
Cloud: $59/mo
Stars
—
⭐ 7,000
Health
—
●80 — Active
Trajectory
— not enough data
— not enough data
Synced
—
today

PromptLayer

Log every LLM request, version prompts, and run A/B tests. Provides a visual interface for prompt engineering teams to iterate collaboratively.

Langfuse

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

PromptLayer Website ↗
Langfuse Website ↗GitHub ↗

Only PromptLayer (2)

LangfuseHumanloop

Only Langfuse (28)

CursorCrewAIAutoGenLangGraphLangChainLlamaIndexDifyMastra
See full comparison in Explore →