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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
Luma Dream Machine
A
Reflect
A
TaglineGrammar check + tone + AI drafting, everywhere you type.Smooth, cinematic motion. Image-to-video specialist.AI-powered networked notes. Roam with a brain.
CategoryWritingVideoProductivity
PricingFree + $12-$15/mo Premium + team plansFree + $10-$500/mo$10/mo
Best forNon-native English writers, business email, anyone who types a lot.Photographers animating stills, cinematic b-roll.Knowledge workers + thinkers who want AI in their second brain.
Strengths
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Best image-to-video in the category
  • Great camera motion control
  • Ray 2 model produces striking shots
  • AI auto-links related notes
  • Generates backlinks + summaries
  • Clean, minimal UX
Weaknesses
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Prompt fidelity below Runway
  • Queue times on free tier
  • Expensive for just notes
  • Smaller community than Obsidian
Kai's verdictA-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.A-tier. Niche but beloved. If you've outgrown Notion, try this.
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