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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.
Pick tools (4 selected)
Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Figma AI
A
HeyGen
S
Lex
A
Devin
A
TaglineAI features baked into the design tool you already use.AI avatar videos. Record once, speak any language.Google Docs with an AI collaborator baked in.Cognition Labs' autonomous coding engineer.
CategoryDesignVideoWritingAgents
PricingIncluded with Figma plansFree + $24-$65/moFree + $12/mo$500/mo
Best forDesigners already on Figma.Course creators, multilingual marketers, anyone scaling video content.Essays, long-form drafts, thinking on the page.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Features vary by plan + region
  • Still rolling out
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictA-tier. No reason not to use it if you're on Figma. Not worth switching for.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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