Dify vs Vertex AI Agent Builder

as AI assistants see them, week of 2026-10-19

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Dify and Vertex AI Agent Builder are neck and neck, each landing an overall score of 12 and each named in 22 of 73 answers. Dify edges ahead with ChatGPT and Claude (13 and 13 versus 14 and 11), while Vertex AI Agent Builder scores higher with Perplexity (13 vs 12). Head-to-head, Vertex AI Agent Builder comes out named more often in 7 questions, Dify in 6, and the two tie in 12. Dify sweeps "best AI agent builder in 2026" and "best self-hosted platform for running AI agents privately" at 3 of 3, while Vertex AI Agent Builder matches that on "best platforms for building AI agents."

Head to head

metric	Dify	Vertex AI Agent Builder
score	12	12
questions won	12	13

By assistant

Dify

assistant	score	named in, this week	usual spot, this week
ChatGPT	13	30% of answers	#6.2
Claude	13	25% of answers	#9.6
Gemini	not sampled this week
Perplexity	12	22% of answers	#5.5

Vertex AI Agent Builder

assistant	score	named in, this week	usual spot, this week
ChatGPT	14	20% of answers	#5.8
Claude	11	30% of answers	#11.3
Gemini	not sampled this week
Perplexity	13	33% of answers	#5.5

Where they differ

Only Dify gets named for

What's the best self-hosted platform for running AI agents privately?
What's the best no-code tool to build an AI agent?
What's the best tool to build an AI agent that browses the web and does research?
What are the best alternatives to n8n?

Only Vertex AI Agent Builder gets named for

What's the best platform to build an AI agent that connects to my company's data?
Which AI agent framework should a developer choose?
What's the best tool for building multi-agent systems?
What are the best alternatives to Pydantic AI?
What's the best tool to automate a business workflow with AI agents?

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