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

Claude Agent SDK vs LangGraph vs DSPy vs CrewAI vs Pydantic AI

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Agent Frameworks · verified 13 Aug 2026

×Claude Agent SDKAnthropiccurrent
×LangGraphLangChaincurrent
×SDSPyStanford NLPcurrent
×CrewAICrewAIcurrent
×Pydantic AIPydanticcurrent
SpecificationClaude Agent SDKLangGraphDSPyCrewAIPydantic AI
SummaryThe Claude Code loop as a library.Most battle-tested for stateful production.Compiles prompts instead of hand-writing them.Role-based agent crews.Type-safe, schema-validated agents.
ModelHarnessGraphCompilerRole-basedTyped
LanguagePython, TSPython, JSPythonPythonPython
MCP supportYes——Yes—
StatusActiveActiveActiveActiveActive
CategoryAgent FrameworksAgent FrameworksAgent FrameworksAgent FrameworksAgent Frameworks
OfficialAnthropic ↗LangChain ↗Stanford NLP ↗CrewAI ↗Pydantic ↗

Highlighted rows are where these differ.

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 →

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 →

CrewAI

  • Define a crew with goals and tools
  • Added A2A support

Best for prototyping.

Full spec sheet →

Pydantic AI

Type-safe, schema-validated agents.

Best for predictable output.

Full spec sheet →