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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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Grammarly
A
Ollama
S
Adobe Firefly
A
Writesonic
B
TaglineGrammar check + tone + AI drafting, everywhere you type.Run LLMs locally. One-line install, GUI optional.Commercially safe image gen, deeply integrated with Photoshop.SEO-first AI writer. Optimized for ranking content.
CategoryWritingDev PlatformImageMarketing
PricingFree + $12-$15/mo Premium + team plansFree + open sourceFree + included with Creative CloudFree + $15-$99/mo
Best forNon-native English writers, business email, anyone who types a lot.Devs wanting offline/local LLMs for privacy or experimentation.Anyone in Creative Cloud. Brands that need copyright clarity.Content marketers churning out SEO articles.
Strengths
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Run Llama, Mistral, Qwen, etc. on your laptop
  • Simple CLI + API
  • Hardware-aware (picks the right quant)
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
  • SEO built-in (Surfer integration)
  • Article generator for long-form
  • Chatsonic for research
Weaknesses
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Needs beefy laptop for larger models
  • Speed way behind cloud APIs
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
  • Output quality behind Claude for polish
  • SEO automation can produce generic content
Kai's verdictA-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.S-tier for local inference. If you care about privacy or want to tinker, install this today.S-tier inside Photoshop (Generative Fill). B-tier standalone.B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic.
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