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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
Fathom
S
Framer
A
Bolt.new (StackBlitz)
A
TaglineCognition Labs' autonomous coding engineer.Meeting notes, free forever for individuals.Design + publish sites with AI assists built in.Prompt to deployed full-stack app in the browser.
CategoryAgentsMeetingsDesignCoding
Pricing$500/moFree for individuals + $15-$29/user/mo teamsFree + $5-$30/moFree + $20-$200/mo
Best forEngineering teams offloading tickets. Ops/platform work.Solo operators, freelancers, small teams on a budget.Designers shipping marketing sites without engineers.PMs, founders, non-devs shipping MVPs.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Bot-joining model
  • Team features gated
  • Less flexible than raw code
  • Pricing per-site adds up
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for solo + free. The best free option, hands down.A-tier for designer-led sites. S-tier if animations matter.A-tier. Best for fast prototypes. Competitive with Lovable — try both.
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