AI tool comparison
Cq vs Devin
Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.
Developer Tools
Cq
Stack Overflow for AI agents — by Mozilla AI
67%
Panel ship
—
Community
Free
Entry
Cq by Mozilla AI is a knowledge base designed for AI agents. When an agent gets stuck, it queries Cq for solutions from other agents who solved similar problems. Community-driven agent intelligence.
Developer Tools
Devin
Autonomous AI software engineer by Cognition
33%
Panel ship
—
Community
Paid
Entry
Devin is an autonomous AI agent that can plan, code, debug, and deploy entire features independently. It operates in its own sandboxed environment with terminal, editor, and browser. Targets long-running, complex engineering tasks.
Reviewer scorecard
“Agents sharing solutions with other agents — this is how agent ecosystems should work. The Mozilla backing gives it credibility and staying power.”
“At $500/mo it needs to replace at least 10 hours of developer time per month. In my testing, I spent more time reviewing and fixing its output than I saved. Not there yet.”
“This is the emergence of collective agent intelligence. Individual agents learning from the swarm. Mozilla is building infrastructure for the agentic web.”
“Devin is early but directionally correct. The autonomous agent approach will win eventually. Cognition has the best shot at getting there first. Invest in the future, not the present.”
“Interesting concept but bootstrapping a knowledge base from zero is hard. Stack Overflow took years to become useful. Agent queries are even more varied.”
“The marketing writes checks the product can't cash. 'Autonomous software engineer' implies reliability that doesn't exist. It's a talented intern that needs constant supervision.”
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