Mastra vs Microsoft Agent Framework

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

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Mastra and Microsoft Agent Framework both sit near the bottom of the pack, with overall scores of 8 and 9 out of 100. Mastra shows up in 12 of 71 answers, edging out Microsoft Agent Framework's 9 of 71. Mastra does best on "which AI agent framework should a developer choose" (2 of 3 answers) and "best platforms for building AI agents" (2 of 4), while Microsoft Agent Framework is named in all 3 answers for "best tool for building multi-agent systems." Head-to-head, Mastra leads on 6 questions, Microsoft Agent Framework on 3, with 11 ties. Neither is ever named for best voice AI agent platform or best fit for non-technical founders.

Head to head

metric	Mastra	Microsoft Agent Framework
score	11	10
questions won	14	10

By assistant

Mastra

assistant	score	named in, this week	usual spot, this week
ChatGPT	6	10% of answers	#6.0
Claude	21	45% of answers	#7.3
Gemini	not sampled this week
Perplexity	11	22% of answers	#5.3

Microsoft Agent Framework

assistant	score	named in, this week	usual spot, this week
ChatGPT	14	20% of answers	#4.0
Claude	5	10% of answers	#6.0
Gemini	not sampled this week
Perplexity	15	22% of answers	#5.0

Where they differ

Only Mastra gets named for

What's the best tool to build an AI agent that answers customer emails?
What's the best platform for an agency building AI agents for clients?
What's the best AI agent builder in 2026?
Which AI agent platform has the best pricing for a small team?
What's the best platform to build an AI agent that connects to my company's data?

Only Microsoft Agent Framework gets named for

What's the best platform to build and deploy AI agents for a startup?

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