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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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Dev Platform
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Claude Agent SDK
S
Lex
A
Adobe Firefly
A
Cursor
S
TaglineAnthropic's SDK for building your own agents on Claude.Google Docs with an AI collaborator baked in.Commercially safe image gen, deeply integrated with Photoshop.VS Code fork that made AI coding actually work.
CategoryAgentsWritingImageCoding
PricingAPI usage + SDK is freeFree + $12/moFree + included with Creative CloudFree + $20/mo Pro + $40/mo Business
Best forDevelopers building custom agents for their own company/product.Essays, long-form drafts, thinking on the page.Anyone in Creative Cloud. Brands that need copyright clarity.Developers. Non-developers who want to ship working code.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
Weaknesses
  • Developer-only
  • You build the UI
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier inside Photoshop (Generative Fill). B-tier standalone.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
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