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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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Grammarly
A
ChatGPT Operator
B
Groq
S
Adobe Firefly
A
TaglineGrammar check + tone + AI drafting, everywhere you type.OpenAI's browser agent. Clicks and types on websites for you.The fastest AI inference in the world. Crazy low latency.Commercially safe image gen, deeply integrated with Photoshop.
CategoryWritingAgentsDev PlatformImage
PricingFree + $12-$15/mo Premium + team plansIncluded with ChatGPT Pro $200/moFree tier + pay-as-you-go APIFree + included with Creative Cloud
Best forNon-native English writers, business email, anyone who types a lot.Power users willing to pay $200/mo for a browser bot.Developers who need sub-100ms LLM responses.Anyone in Creative Cloud. Brands that need copyright clarity.
Strengths
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
Weaknesses
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
Kai's verdictA-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.B-tier. Still early. Manus is more flexible for less money.S-tier for speed. When latency is the product, start here.S-tier inside Photoshop (Generative Fill). B-tier standalone.
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