AI agents / Frameworks & automation

LangGraph
by LangChain
Framework for building controllable, stateful agents as graphs.
Open sourceFree optionFrameworks & automation
- Open source (MIT)
- Fine control over agent state and flow
- Pairs with LangSmith tracing
- Steeper learning curve
- Hosted features are paid
- Code required
| Best for | Engineers building production agents |
|---|---|
| Not for | No-code users |
| Pricing | Free framework; LangSmith Developer free, Plus $39/seat/mo |
| Open source | Yes (MIT) |
| Category | Frameworks & automation |
| Verified | 2026-10-14 |
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