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TestedStack

Comparison

CrewAI vs Mastra

CrewAI

AI Agents · Open source

Define roles, tasks, and tools, then run them as a crew. A hosted product sits next to the library.

Quality
Pending
Price
Pending
Speed
Pending
Ease of starting
Pending

The framework is open source. CrewAI also sells a hosted platform. See crewai.com/pricing for current cloud plans. No dollar amount is copied here.

https://crewai.com

Mastra

AI Agents · Open source

A TypeScript toolkit for agents, workflows, and evals in the same repo as your app.

Quality
Pending
Price
Pending
Speed
Pending
Ease of starting
Pending

Mastra is open source. Model use is billed by the provider you call.

https://mastra.ai