Pyyan / Compare / Pydantic AI vs LangGraph vs DSPy

Pydantic AI vs LangGraph vs DSPy

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Agent Frameworks · verified 13 Aug 2026

×Pydantic AIPydanticcurrent
×LangGraphLangChaincurrent
×SDSPyStanford NLPcurrent
2 slots left
SpecificationPydantic AILangGraphDSPy
SummaryType-safe, schema-validated agents.Most battle-tested for stateful production.Compiles prompts instead of hand-writing them.
ModelTypedGraphCompiler
LanguagePythonPython, JSPython
StatusActiveActiveActive
CategoryAgent FrameworksAgent FrameworksAgent Frameworks
OfficialPydanticLangChainStanford NLP

Highlighted rows are where these differ.

Pydantic AI

Type-safe, schema-validated agents.

Best for predictable output.

Full spec sheet →

LangGraph

  • Conditional branches, loops, parallel paths
  • Steepest learning curve

Best for production.

Full spec sheet →

DSPy

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

Best for optimisation.

Full spec sheet →