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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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GitHub Copilot
B
Bolt.new (StackBlitz)
A
Leonardo.ai
A
NotebookLM
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Prompt to deployed full-stack app in the browser.Gamer + creator image gen with model fine-tuning built in.Google's research notebook. Turns your docs into a podcast.
Categorycodingcodingimageresearch
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20-$200/moFree + $12-$60/moFree
Best forTeams with GitHub already. Devs who don't want to change IDEs.PMs, founders, non-devs shipping MVPs.Indie game devs, illustrators, anyone training custom style models.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
  • General output behind Midjourney
  • Can be overwhelming
  • Google-only
  • Can be slow on large corpora
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Best for fast prototypes. Competitive with Lovable — try both.A-tier for creators training custom looks. B-tier for general use.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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