These tools integrates with
LangChainvsOpenAI API
The leading LLM app framework versus GPT-4o, o1, and embeddings from OpenAI
Compare interactively in Explore →Side-by-side comparison
Field
LangChain
OpenAI API
Category
Pipelines & RAG
LLM Infrastructure
Type
Open Source
Commercial
Free Tier
✓ Yes
✗ No
Pricing Plans
—
API: Per token
GitHub Stars
⭐ 93,000
—
LangChain
Most widely used framework for building LLM applications. Chains, agents, RAG pipelines, and deep integrations with 300+ tools.
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.
Shared Connections8 tools both integrate with
Only LangChain (16)
OpenHandsLangGraphSemantic KernelLangSmithQdrantChromaPineconeWeaviatepgvectorRAGAS
Only OpenAI API (11)
LangChainMastraPydanticAIsmolagentsAgnoHeliconeMistral APICohere APIGroqTogether AI
Explore the full AI landscape
See how LangChain and OpenAI API fit into the bigger picture — 123 tools, 283 relationships, all mapped.