Dify vs Pydantic AI

as AI assistants see them, week of 2026-09-14

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Dify and Pydantic AI land close on overall score, 11 versus 15 out of 100, but AI assistants reach for them differently. Dify shows up in 15 of 71 answers, with its strongest showing on self-hosted platforms for running AI agents privately, named in 3 of 3 answers. Pydantic AI is named more often overall, 19 of 71 answers, and sweeps both "Which AI agent framework should a developer choose?" and "best open-source AI agent frameworks", 3 of 3 each. Head-to-head, Pydantic AI leads on 7 questions to Dify's 4, with 9 ties. Claude rates Pydantic AI highest at 41; Gemini gives it 0.

Head to head

metric	Dify	Pydantic AI
score	11	15
questions won	9	15

By assistant

Dify

assistant	score	named in, this week	usual spot, this week
ChatGPT	8	15% of answers	#6.3
Claude	15	35% of answers	#9.6
Gemini	13	17% of answers	#3.0
Perplexity	10	16% of answers	#5.3

Pydantic AI

assistant	score	named in, this week	usual spot, this week
ChatGPT	6	10% of answers	#5.5
Claude	41	75% of answers	#6.6
Gemini	0	0% of answers
Perplexity	7	11% of answers	#5.0

Where they differ

Only Dify gets named for

What's the best no-code tool to build an AI agent?

Only Pydantic AI gets named for

What are the best open-source AI agent frameworks?
Which AI agent framework should a developer choose?
What's the best tool for building multi-agent systems?
What's the best tool to automate a business workflow with AI agents?
What's the most reliable platform to run AI agents in production?
What's the best tool to build an AI agent that browses the web and does research?
What's the best tool to build an AI agent that answers customer emails?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full AI agent builders leaderboard