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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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DeepSeek
S
GitHub Copilot
B
Bolt.new (StackBlitz)
A
DALL-E 3
B
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Prompt to deployed full-stack app in the browser.OpenAI's image model. Built into ChatGPT Plus.
Categorychatcodingcodingimage
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free (limited) + $10/mo Pro + $19/mo BusinessFree + $20-$200/moIncluded with ChatGPT Plus $20/mo
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Teams with GitHub already. Devs who don't want to change IDEs.PMs, founders, non-devs shipping MVPs.ChatGPT Plus users who want images without paying extra.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • 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
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.B-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.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.
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