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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
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Stable Audio
A
NotebookLM
S
Gamma
A
Sora
A
TaglineStability AI's open audio model. Loops + SFX + background.Google's research notebook. Turns your docs into a podcast.AI slide decks that don't look AI-generated.OpenAI's video model. Long clips, cinematic quality.
CategoryAudioResearchProductivityVideo
PricingFree + $12/mo Pro + enterpriseFreeFree + $10-$20/moIncluded with ChatGPT Plus/Pro
Best forGame developers, podcasters needing SFX, video creators needing background music.Students, researchers, anyone with a stack of PDFs or a topic to learn.Pitch decks, proposals, internal presentations — fast.ChatGPT subscribers experimenting with cinematic shots.
Strengths
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
Weaknesses
  • Not for full songs with vocals
  • Shorter generation limits
  • Google-only
  • Can be slow on large corpora
  • Locked into Gamma's format
  • Export quality varies
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
Kai's verdictA-tier for its niche. Different use case than Suno — SFX and loops, not songs.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.
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