Mastra vs Relevance AI

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

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Mastra and Relevance AI land close overall, with scores of 8 and 9 out of 100 and each named in 12 of 71 answers. Their overall closeness hides a split personality: Mastra shows up most for developer-facing questions, like framework choice (2 of 3 answers) and multi-agent systems (2 of 3), while Relevance AI leans toward non-technical use, topping out at being named in 3 of 4 answers for best platform for a non-technical founder. Head-to-head, Mastra was named more often in 5 questions, Relevance AI in 4, and they tied in 11. By assistant, Gemini rates Relevance AI far higher (35) than Mastra (0), while Claude favors Mastra (18 vs 6).

Head to head

metric	Mastra	Relevance AI
score	8	9
questions won	9	8

By assistant

Mastra

assistant	score	named in, this week	usual spot, this week
ChatGPT	5	10% of answers	#6.5
Claude	18	40% of answers	#9.1
Gemini	0	0% of answers
Perplexity	7	11% of answers	#4.5

Relevance AI

assistant	score	named in, this week	usual spot, this week
ChatGPT	7	10% of answers	#3.5
Claude	6	15% of answers	#12.7
Gemini	35	58% of answers	#5.6
Perplexity	0	0% of answers

Where they differ

Only Mastra gets named for

Which AI agent framework should a developer choose?
What's the best tool for building multi-agent systems?
What's the best platform for an agency building AI agents for clients?
What's the best platform to build AI agents that use MCP tools?
What are the best open-source AI agent frameworks?

Only Relevance AI gets named for

Which AI agent platform is best for a non-technical founder?
What's the best no-code tool to build an AI agent?
Which AI agent platform has the best pricing for a small team?
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