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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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Devin
A
Luma Dream Machine
A
Groq
S
Hex
A
TaglineCognition Labs' autonomous coding engineer.Smooth, cinematic motion. Image-to-video specialist.The fastest AI inference in the world. Crazy low latency.Modern data notebook with Magic AI assistant.
CategoryAgentsVideoDev PlatformData
Pricing$500/moFree + $10-$500/moFree tier + pay-as-you-go APIFree + $28+/user/mo
Best forEngineering teams offloading tickets. Ops/platform work.Photographers animating stills, cinematic b-roll.Developers who need sub-100ms LLM responses.Data teams at startups + enterprises.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Prompt fidelity below Runway
  • Queue times on free tier
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Overkill for casual users
  • Enterprise pricing
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.S-tier for speed. When latency is the product, start here.A-tier for data teams. S-tier if you already live in SQL + Python.
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