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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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Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Claude
S
Devin
A
Lovable
A
Bolt.new (StackBlitz)
A
TaglineAnthropic's flagship — best reasoning + longest useful context.Cognition Labs' autonomous coding engineer.Build a full app from a prompt. Stripe-ready.Prompt to deployed full-stack app in the browser.
CategoryChatbotsAgentsDesignCoding
PricingFree + $20/mo Pro + team/enterprise$500/moFree + $25-$100/moFree + $20-$200/mo
Best forLong writing, code, careful thinking, documents over 50 pages.Engineering teams offloading tickets. Ops/platform work.Non-devs + solopreneurs shipping MVPs.PMs, founders, non-devs shipping MVPs.
Strengths
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
Weaknesses
  • Image generation is weak
  • No native web search on all tiers
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Complexity ceiling
  • Can generate brittle code
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
Kai's verdictS-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.A-tier. Best for fast prototypes. Competitive with Lovable — try both.
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