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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
Adobe Firefly
A
HeyGen
S
TaglineGrammar check + tone + AI drafting, everywhere you type.Commercially safe image gen, deeply integrated with Photoshop.AI avatar videos. Record once, speak any language.
CategoryWritingImageVideo
PricingFree + $12-$15/mo Premium + team plansFree + included with Creative CloudFree + $24-$65/mo
Best forNon-native English writers, business email, anyone who types a lot.Anyone in Creative Cloud. Brands that need copyright clarity.Course creators, multilingual marketers, anyone scaling video content.
Strengths
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Trained on licensed content — commercially safe
  • Generative Fill in Photoshop is incredible
  • Native to Adobe ecosystem
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Aesthetic ceiling below Midjourney
  • Tied to Adobe subscription
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
Kai's verdictA-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.S-tier inside Photoshop (Generative Fill). B-tier standalone.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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