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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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Hex
A
Figma AI
A
NotebookLM
S
Devin
A
TaglineModern data notebook with Magic AI assistant.AI features baked into the design tool you already use.Google's research notebook. Turns your docs into a podcast.Cognition Labs' autonomous coding engineer.
CategoryDataDesignResearchAgents
PricingFree + $28+/user/moIncluded with Figma plansFree$500/mo
Best forData teams at startups + enterprises.Designers already on Figma.Students, researchers, anyone with a stack of PDFs or a topic to learn.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Overkill for casual users
  • Enterprise pricing
  • Features vary by plan + region
  • Still rolling out
  • Google-only
  • Can be slow on large corpora
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictA-tier for data teams. S-tier if you already live in SQL + Python.A-tier. No reason not to use it if you're on Figma. Not worth switching for.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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