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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
Lovable
A
HeyGen
S
Sora
A
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Build a full app from a prompt. Stripe-ready.AI avatar videos. Record once, speak any language.OpenAI's video model. Long clips, cinematic quality.
CategoryChatbotsDesignVideoVideo
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free + $25-$100/moFree + $24-$65/moIncluded with ChatGPT Plus/Pro
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Non-devs + solopreneurs shipping MVPs.Course creators, multilingual marketers, anyone scaling video content.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Complexity ceiling
  • Can generate brittle code
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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