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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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S
Manus
S
Figma AI
A
Devin
A
TaglineRun any open-source AI model with an API call.Autonomous AI agent that actually finishes tasks.AI features baked into the design tool you already use.Cognition Labs' autonomous coding engineer.
CategoryDev PlatformAgentsDesignAgents
PricingPay per second of computeFree tier + $39-$199/moIncluded with Figma plans$500/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Designers already on Figma.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Features vary by plan + region
  • Still rolling out
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. No reason not to use it if you're on Figma. Not worth switching for.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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