Compare LangGraph and Pydantic AI side by side. Both are tools in the Agent Frameworks category.
| Category | Agent Frameworks | Agent Frameworks |
| Website | langchain.com | ai.pydantic.dev |
Key criteria to evaluate when comparing Agent Frameworks solutions:
LangGraph is LangChain's graph-based orchestration framework for building stateful, multi-step AI agents. It models agent workflows as directed graphs with nodes and edges, enabling complex control flow patterns like branching, looping, and human-in-the-loop interactions. LangGraph supports persistent state, streaming, and deployment via LangGraph Cloud.
Pydantic AI is an agent framework from the creators of Pydantic that leverages Python type hints for building type-safe AI agents. It provides structured output validation, dependency injection for tools, and a model-agnostic interface, making it popular with Python developers who value code quality and type safety.
Developer frameworks and SDKs for building autonomous AI agents with tool use, planning, multi-step reasoning, and orchestration capabilities.
Browse all Agent Frameworks tools →