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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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Replit Agent
A
Perplexity
S
Lex
A
Figma AI
A
TaglineReplit's AI that builds + deploys full apps on their platform.AI search done right. Cited answers, not chat theater.Google Docs with an AI collaborator baked in.AI features baked into the design tool you already use.
CategoryCodingResearchWritingDesign
Pricing$10-$25/mo Core/TeamsFree + $20/mo ProFree + $12/moIncluded with Figma plans
Best forTeachers, students, prototypers, hackathon builders.Replacing Google for any question where you want a cited answer in seconds.Essays, long-form drafts, thinking on the page.Designers already on Figma.
Strengths
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
Weaknesses
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Features vary by plan + region
  • Still rolling out
Kai's verdictA-tier. Best for teaching a kid to code in 2026.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. No reason not to use it if you're on Figma. Not worth switching for.
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