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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
Adobe Firefly
A
ChatGPT
S
Lex
A
TaglineCognition Labs' autonomous coding engineer.Commercially safe image gen, deeply integrated with Photoshop.The default. Strongest ecosystem + best multimodal breadth.Google Docs with an AI collaborator baked in.
CategoryAgentsImageChatbotsWriting
Pricing$500/moFree + included with Creative CloudFree + $20/mo Plus + $200/mo ProFree + $12/mo
Best forEngineering teams offloading tickets. Ops/platform work.Anyone in Creative Cloud. Brands that need copyright clarity.General use, voice chat, image generation, first-time AI users.Essays, long-form drafts, thinking on the page.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
  • Great voice mode
  • Huge plugin/custom GPT ecosystem
  • Strong image generation (DALL-E built in)
  • Code Interpreter
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
  • Reasoning quality varies by mode
  • Can be verbose
  • Confabulates on niche facts
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier inside Photoshop (Generative Fill). B-tier standalone.S-tier all-rounder. If you want one tool that does everything okay-to-great, this is it.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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