Pyyan / Compare / LangGraph vs CrewAI vs Claude Agent SDK vs Pydantic AI
Agent Frameworks · verified 13 Aug 2026
| Specification | LangGraph | CrewAI | Claude Agent SDK | Pydantic AI |
|---|---|---|---|---|
| Summary | Most battle-tested for stateful production. | Role-based agent crews. | The Claude Code loop as a library. | Type-safe, schema-validated agents. |
| Model | Graph | Role-based | Harness | Typed |
| Language | Python, JS | Python | Python, TS | Python |
| MCP support | — | Yes | Yes | — |
| Status | Active | Active | Active | Active |
| Category | Agent Frameworks | Agent Frameworks | Agent Frameworks | Agent Frameworks |
| Official | LangChain ↗ | CrewAI ↗ | Anthropic ↗ | Pydantic ↗ |
Highlighted rows are where these differ.
Best for production.
Best for custom agents.