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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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OpenRouter
S
Rows
A
Udio
A
Gamma
A
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Spreadsheets with AI + live integrations baked in.Suno's main rival. Often better on instrumental nuance.AI slide decks that don't look AI-generated.
CategoryDev PlatformDataAudioProductivity
PricingPay per token — model-dependentFree + $19-$89/user/moFree + $10-$30/moFree + $10-$20/mo
Best forDevelopers experimenting across models. Apps that want fallback logic.Ops teams, marketers, anyone building dashboards from multiple sources.Musicians comparing AI outputs. Anyone who didn't click with Suno.Pitch decks, proposals, internal presentations — fast.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. Genuinely different vibe from Suno — worth trying both for a month.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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