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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
Kling
A
Replicate
S
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Kuaishou's video model. The surprise standout.Run any open-source AI model with an API call.
Categorychatcodingvideodev platform
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free (limited) + $10/mo Pro + $19/mo BusinessCredit-based, free trialPay per second of compute
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Teams with GitHub already. Devs who don't want to change IDEs.Anyone who wants top-tier video quality for less.Developers using open-source models (Flux, SDXL, Whisper, etc).
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
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
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
  • UX is rough for English speakers
  • Queue times
  • Cold starts on less-popular models
  • Pricing gets real at scale
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. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.S-tier for open-source model APIs. The default in this space.
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