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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Dev Platform
Agents
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Coding
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Manus
S
Windsurf
A
Taskade
B
Devin
A
TaglineAutonomous AI agent that actually finishes tasks.Codeium's agentic IDE. Cascade agent + strong free tier.AI project management with agents for each team.Cognition Labs' autonomous coding engineer.
CategoryAgentsCodingProductivityAgents
PricingFree tier + $39-$199/moFree + $15/mo ProFree + $8-$20/user/mo$500/mo
Best forPeople who want to hand off tasks entirely — trip planning, research, spreadsheet building.Developers who want Cursor-like power for less money.Small teams wanting AI baked into project management.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Custom AI agents per project
  • Doc + tasks + kanban in one
  • Affordable for teams
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Smaller community
  • Model selection more limited
  • Feature sprawl
  • AI agents need tuning to be useful
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. Close second to Cursor. If $5/mo matters, start here.B-tier. Solid product but crowded market. Try it if Notion AI feels too generic.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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