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Pyyan / Compare / Pydantic AI vs DSPy vs Claude Agent SDK

Pydantic AI vs DSPy vs Claude Agent SDK

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Agent Frameworks · verified 13 Aug 2026

×Pydantic AIPydanticcurrent
×SDSPyStanford NLPcurrent
×Claude Agent SDKAnthropiccurrent
2 slots left
SpecificationPydantic AIDSPyClaude Agent SDK
SummaryType-safe, schema-validated agents.Compiles prompts instead of hand-writing them.The Claude Code loop as a library.
ModelTypedCompilerHarness
LanguagePythonPythonPython, TS
MCP support——Yes
StatusActiveActiveActive
CategoryAgent FrameworksAgent FrameworksAgent Frameworks
OfficialPydantic ↗Stanford NLP ↗Anthropic ↗

Highlighted rows are where these differ.

Pydantic AI

Type-safe, schema-validated agents.

Best for predictable output.

Full spec sheet →

DSPy

  • ~23k stars
  • Built-in ReAct and agent loops

Best for optimisation.

Full spec sheet →

Claude Agent SDK

  • Renamed from Claude Code SDK in March 2026
  • Tools, bash and a full agentic loop

Best for custom agents.

Full spec sheet →