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235 tools · 33 stacks

AI tools are all over the place. This is the full landscape — 247 tools across 21 categories, mapped and connected. Ready to narrow it down? Build your stack →

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These tools competes with
Langfuse
vs
PromptLayer

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 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
Field
Langfuse
PromptLayer
Category
Observability
Prompt & Eval
Type
OSS
SaaS
Free Tier
✓ Yes
✓ Yes
Plans
Cloud: $59/mo
Pro: Paid
Stars
⭐ 7,000
—
Health
●95 — Active
—
Trajectory
— not enough data
— not enough data
Synced
today
—

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with broad framework support. Acquired by ClickHouse in January 2026; OSS core continues with deeper ClickHouse-backed analytics.

PromptLayer

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

Langfuse Website ↗GitHub ↗
PromptLayer Website ↗

Only Langfuse (29)

CursorCrewAIAutoGenLangGraphLangChainLlamaIndexDifyMastra

Only PromptLayer (2)

LangfuseHumanloop
See full comparison in Explore →