Both are open source framework options with comparable terms, so the choice comes down to which model of the problem you prefer — compare the descriptions below rather than the licence.
Type-safe Python agents with structured output that actually validates.
Role-based crews of agents with delegation between them.
| Pydantic AI | CrewAI | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | open source | freemium |
| Self-hostable | Yes | Yes |
| Languages | Python | Python |
| Install | pip install pydantic-ai | pip install crewai |
| Keys required | None | None |
Both are open source framework options with comparable terms, so the choice comes down to which model of the problem you prefer — compare the descriptions below rather than the licence. Pydantic AI: Type-safe Python agents with structured output that actually validates. CrewAI: Role-based crews of agents with delegation between them.
Pydantic AI can run on your own infrastructure. CrewAI can run on your own infrastructure.
Pydantic AI is open source (open source). CrewAI is open source (freemium).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/pydantic-ai-vs-crewai