Framework freemium
LangChain / LangGraph
The most widely adopted LLM framework. LangGraph extends it with graph-based stateful agent workflows for production use.
Visit Website →Pros
- ✓ Largest ecosystem and community
- ✓ Production-grade with LangSmith observability
- ✓ 50+ LLM integrations
- ✓ Checkpointing and fault tolerance
Cons
- × Steeper learning curve (graph theory concepts)
- × Can be over-engineered for simple use cases
- × Rapidly changing API
Best For
Production multi-step agent pipelines where you need deterministic control flow and debugging.
Pricing
Free (open-source), LangSmith monitoring from $39/mo
open-sourceproductionpythongraph-based
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