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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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S
Granola
S
Sora
A
Lex
A
TaglineRun any open-source AI model with an API call.Meeting notes that don't suck. Runs locally, no bot joins.OpenAI's video model. Long clips, cinematic quality.Google Docs with an AI collaborator baked in.
CategoryDev PlatformMeetingsVideoWriting
PricingPay per second of computeFree + $18/moIncluded with ChatGPT Plus/ProFree + $12/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Founders, execs, consultants who live in calls.ChatGPT subscribers experimenting with cinematic shots.Essays, long-form drafts, thinking on the page.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • No bot in the call — runs on your Mac
  • Strong templates
  • Fast summaries
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Mac-only
  • Single-user by design
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier. Category-defining UX. If you take notes in meetings, switch this week.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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