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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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Rows
A
OpenRouter
S
Stable Audio
A
NotebookLM
S
TaglineSpreadsheets with AI + live integrations baked in.One API, every model. Pay-as-you-go, no subscriptions.Stability AI's open audio model. Loops + SFX + background.Google's research notebook. Turns your docs into a podcast.
CategoryDataDev PlatformAudioResearch
PricingFree + $19-$89/user/moPay per token — model-dependentFree + $12/mo Pro + enterpriseFree
Best forOps teams, marketers, anyone building dashboards from multiple sources.Developers experimenting across models. Apps that want fallback logic.Game developers, podcasters needing SFX, video creators needing background music.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • 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
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Slight markup over direct API
  • Some provider features not exposed
  • Not for full songs with vocals
  • Shorter generation limits
  • Google-only
  • Can be slow on large corpora
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for model-shopping. I use this for every prototype before committing.A-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.
LinkOpen →Open →Open →Open →