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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
v0
S
GitHub Copilot
B
Groq
S
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Vercel's AI-powered UI generator. Prompt to shadcn component.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.The fastest AI inference in the world. Crazy low latency.
CategoryChatbotsDesignCodingDev Platform
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free + $20/moFree (limited) + $10/mo Pro + $19/mo BusinessFree tier + pay-as-you-go API
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Frontend devs, PMs prototyping UIs, anyone on Next.js.Teams with GitHub already. Devs who don't want to change IDEs.Developers who need sub-100ms LLM responses.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Best for shadcn stack
  • Iterating can be fiddly
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.S-tier. If you're on Vercel/shadcn, this is cheating.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for speed. When latency is the product, start here.
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