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123 tools · 10 stacks
GitHub

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?
React Flow mini map
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These tools integrates with
OpenAI API
vs
Langfuse

Choose OpenAI API when…

  • •You need the broadest ecosystem and most integrations
  • •GPT-4 or o-series reasoning models are required
  • •Assistants API, fine-tuning, or batch API are needed

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
OpenAI API
Langfuse
Category
LLM Infrastructure
LLM Infrastructure
Type
SaaS
OSS
Free Tier
✗ No
✓ Yes
Plans
API: Per token
Cloud: $59/mo
Stars
—
⭐ 7,000

OpenAI API

API access to GPT-4o, o1, and other OpenAI models including embeddings and image generation. The most widely used LLM API in production.

Langfuse

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

OpenAI API Website ↗
Langfuse Website ↗GitHub ↗

Shared Connections (12)

CrewAIAutoGenLangChainLlamaIndexMastraAgnoLiteLLMPortKeyHeliconeVercel AI SDKPromptFooDeepEval

Only OpenAI API (9)

PydanticAIsmolagentsLangfuseAnthropic APIMistral APICohere APIGroqTogether AI

Only Langfuse (15)

CursorClaude CodeOpenHandsLangGraphDifyLangSmithRAGASOpenAI API
See full comparison in Explore →