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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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S
Bolt.new (StackBlitz)
A
Galileo AI
B
Framer
A
TaglineRun any open-source AI model with an API call.Prompt to deployed full-stack app in the browser.Prompt to UI design. Figma-ready outputs.Design + publish sites with AI assists built in.
CategoryDev PlatformCodingDesignDesign
PricingPay per second of computeFree + $20-$200/moFree trial + paid plansFree + $5-$30/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).PMs, founders, non-devs shipping MVPs.Designers brainstorming first drafts.Designers shipping marketing sites without engineers.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
  • Prompt-to-UI with real layouts
  • Exports to Figma
  • Faster than hand-designing from scratch
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
  • Output needs designer polish
  • Pricing unclear / changes often
  • Less flexible than raw code
  • Pricing per-site adds up
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. Best for fast prototypes. Competitive with Lovable — try both.B-tier. Useful for first drafts. v0 is the better bet for shipping code.A-tier for designer-led sites. S-tier if animations matter.
LinkOpen →Open →Open →Open →