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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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Data
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Hex
A
DeepSeek
S
Devin
A
Runway
S
TaglineModern data notebook with Magic AI assistant.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.Cognition Labs' autonomous coding engineer.The pro's AI video tool. Gen-4 is the current bar.
CategoryDataChatbotsAgentsVideo
PricingFree + $28+/user/moFree web + ultra-cheap API (~$0.14/M input tokens)$500/moFree + $15-$95/mo
Best forData teams at startups + enterprises.Developers + cost-conscious builders. Anyone fine with self-hosting.Engineering teams offloading tickets. Ops/platform work.Marketing video, pitch decks, b-roll, creative shorts.
Strengths
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
Weaknesses
  • Overkill for casual users
  • Enterprise pricing
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Expensive at scale
  • Still needs post-editing
Kai's verdictA-tier for data teams. S-tier if you already live in SQL + Python.S-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier. Market leader with reason. Start here for serious video.
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