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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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Lex
A
Udio
A
Sora
A
Cursor
S
TaglineGoogle Docs with an AI collaborator baked in.Suno's main rival. Often better on instrumental nuance.OpenAI's video model. Long clips, cinematic quality.VS Code fork that made AI coding actually work.
CategoryWritingAudioVideoCoding
PricingFree + $12/moFree + $10-$30/moIncluded with ChatGPT Plus/ProFree + $20/mo Pro + $40/mo Business
Best forEssays, long-form drafts, thinking on the page.Musicians comparing AI outputs. Anyone who didn't click with Suno.ChatGPT subscribers experimenting with cinematic shots.Developers. Non-developers who want to ship working code.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. Genuinely different vibe from Suno — worth trying both for a month.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
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