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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
Figma AI
A
Devin
A
Kling
A
TaglineRun any open-source AI model with an API call.AI features baked into the design tool you already use.Cognition Labs' autonomous coding engineer.Kuaishou's video model. The surprise standout.
CategoryDev PlatformDesignAgentsVideo
PricingPay per second of computeIncluded with Figma plans$500/moCredit-based, free trial
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Designers already on Figma.Engineering teams offloading tickets. Ops/platform work.Anyone who wants top-tier video quality for less.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • 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
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Features vary by plan + region
  • Still rolling out
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • UX is rough for English speakers
  • Queue times
Kai's verdictS-tier for open-source model APIs. The default in this space.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.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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