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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
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Voice
Meetings
Design
Productivity
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Data
Marketing
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Taskade
B
Grammarly
A
Flux (Black Forest Labs)
A
Runway
S
TaglineAI project management with agents for each team.Grammar check + tone + AI drafting, everywhere you type.Open weights + strong photorealism. The open-source answer.The pro's AI video tool. Gen-4 is the current bar.
CategoryProductivityWritingImageVideo
PricingFree + $8-$20/user/moFree + $12-$15/mo Premium + team plansAPI + open weights (Schnell is Apache 2.0)Free + $15-$95/mo
Best forSmall teams wanting AI baked into project management.Non-native English writers, business email, anyone who types a lot.Developers + power users who want control and privacy.Marketing video, pitch decks, b-roll, creative shorts.
Strengths
  • Custom AI agents per project
  • Doc + tasks + kanban in one
  • Affordable for teams
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
Weaknesses
  • Feature sprawl
  • AI agents need tuning to be useful
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
  • Harder to use than hosted tools
  • Needs infra
  • Expensive at scale
  • Still needs post-editing
Kai's verdictB-tier. Solid product but crowded market. Try it if Notion AI feels too generic.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.A-tier. S-tier if you self-host. The reason open-source image gen matters.S-tier. Market leader with reason. Start here for serious video.
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