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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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Devin
A
Perplexity
S
Hume AI
A
Figma AI
A
TaglineCognition Labs' autonomous coding engineer.AI search done right. Cited answers, not chat theater.Voice AI that reads + expresses emotion.AI features baked into the design tool you already use.
CategoryAgentsResearchVoiceDesign
Pricing$500/moFree + $20/mo ProFree tier + pay-as-you-goIncluded with Figma plans
Best forEngineering teams offloading tickets. Ops/platform work.Replacing Google for any question where you want a cited answer in seconds.Therapy apps, customer service, any voice agent where emotion matters.Designers already on Figma.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Niche use case
  • Pricing ramps fast
  • Features vary by plan + region
  • Still rolling out
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier in its niche. The only one that actually gets emotion right.A-tier. No reason not to use it if you're on Figma. Not worth switching for.
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