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Best PydanticAI Alternatives

145 frameworks you can use instead of PydanticAI. Ranked by popularity, tag overlap, and live GitHub signals.

type-safepydanticagentstructured-outputdependency-injectionpython
P

PydanticAI

Reference

Type-safe agent framework built on Pydantic for Python

18.4Ktoday474
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Top Alternatives to PydanticAI

L

LangChain

Build context-aware reasoning applications with LLMs

OSSFree
LangChain AI
141.5K850.0K/wtoday468
1 shared tag
A

AutoGen

Microsoft's framework for building multi-agent AI systems

OSSFree
Microsoft
59.6K12w ago445
1 shared tag
C

CrewAI

Multi-agent orchestration framework for collaborative AI workflows

OSSFree
CrewAI Inc
55.3Ktoday298
1 shared tag
M

Microsoft Agent Framework

Unified multi-agent framework merging AutoGen and Semantic Kernel

OSSFree
Microsoft
59.6K800.0K/w12w ago445
1 shared tag
L

Langflow

Visual framework for building and deploying AI agents — 145K+ stars

OSSFree
Langflow AI
151.6Ktoday338
1 shared tag
L

LiteLLM

Universal LLM API gateway for 200+ providers — 38K+ stars

OSSFree
BerriAI
53.2Ktoday382
1 shared tag
M

MetaGPT

Multi-agent framework — the first AI software company — 65K+ stars

OSSFree
FoundationAgents
69.3K24w ago116
1 shared tag
A

Agno

Build, run, and manage agentic software at scale with 38K+ stars

OSSFree
Agno AGI
41.1Ktoday444
1 shared tag
D

DSPy

Framework for programming — not prompting — LLMs — 33K+ stars

OSSFree
Stanford NLP
36.0Ktoday402
1 shared tag
L

LangGraph

LangChain's framework for building stateful agent graphs — 26K+ stars

OSSFree
LangChain
37.0Ktoday275
1 shared tag
s

smolagents

Lightweight agent framework by HuggingFace — minimal code, maximum control

OSSFree
Hugging Face
28.3Ktoday204
1 shared tag
H

Haystack

End-to-end LLM framework for building NLP and agent pipelines — 18K+ stars

OSSFree
deepset
25.9K600.0K/wtoday383
1 shared tag

Compare directly

PydanticAI vs LangChainPydanticAI vs AutoGenPydanticAI vs CrewAIPydanticAI vs Microsoft Agent Framework