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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
Audio
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Agents
Coding
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Image
Video
Voice
Meetings
Design
Productivity
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Data
Marketing
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Grammarly
A
HeyGen
S
Framer
A
Gamma
A
TaglineGrammar check + tone + AI drafting, everywhere you type.AI avatar videos. Record once, speak any language.Design + publish sites with AI assists built in.AI slide decks that don't look AI-generated.
CategoryWritingVideoDesignProductivity
PricingFree + $12-$15/mo Premium + team plansFree + $24-$65/moFree + $5-$30/moFree + $10-$20/mo
Best forNon-native English writers, business email, anyone who types a lot.Course creators, multilingual marketers, anyone scaling video content.Designers shipping marketing sites without engineers.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Less flexible than raw code
  • Pricing per-site adds up
  • Locked into Gamma's format
  • Export quality varies
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 multilingual video. If you sell courses or speak at events, this is a cheat code.A-tier for designer-led sites. S-tier if animations matter.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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