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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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Image
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Devin
A
ChatGPT Operator
B
Recraft
S
NotebookLM
S
TaglineCognition Labs' autonomous coding engineer.OpenAI's browser agent. Clicks and types on websites for you.Vector + raster AI for designers. Actually controls the output.Google's research notebook. Turns your docs into a podcast.
CategoryAgentsAgentsImageResearch
Pricing$500/moIncluded with ChatGPT Pro $200/moFree + $12-$48/moFree
Best forEngineering teams offloading tickets. Ops/platform work.Power users willing to pay $200/mo for a browser bot.Designers, brand teams, anyone needing vector output or tight style control.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Less hyped than Midjourney
  • Learning curve for non-designers
  • Google-only
  • Can be slow on large corpora
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.B-tier. Still early. Manus is more flexible for less money.S-tier for designers. The only one that takes vectors seriously.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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