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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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Stable Audio
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Gamma
A
TaglineRun any open-source AI model with an API call.Spreadsheets with AI + live integrations baked in.Stability AI's open audio model. Loops + SFX + background.AI slide decks that don't look AI-generated.
CategoryDev PlatformDataAudioProductivity
PricingPay per second of computeFree + $19-$89/user/moFree + $12/mo Pro + enterpriseFree + $10-$20/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Ops teams, marketers, anyone building dashboards from multiple sources.Game developers, podcasters needing SFX, video creators needing background music.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Not for full songs with vocals
  • Shorter generation limits
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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