Pyyan / Compare / DSPy vs Claude Agent SDK vs Pydantic AI
Agent Frameworks · verified 13 Aug 2026
| Specification | DSPy | Claude Agent SDK | Pydantic AI |
|---|---|---|---|
| Summary | Compiles prompts instead of hand-writing them. | The Claude Code loop as a library. | Type-safe, schema-validated agents. |
| Model | Compiler | Harness | Typed |
| Language | Python | Python, TS | Python |
| MCP support | — | Yes | — |
| Status | Active | Active | Active |
| Category | Agent Frameworks | Agent Frameworks | Agent Frameworks |
| Official | Stanford NLP ↗ | Anthropic ↗ | Pydantic ↗ |
Highlighted rows are where these differ.
Best for custom agents.