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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
OpenAI Voice / Realtime
S
Stable Audio
A
Replicate
S
TaglineSpreadsheets with AI + live integrations baked in.ChatGPT's voice + the Realtime API for developers.Stability AI's open audio model. Loops + SFX + background.Run any open-source AI model with an API call.
CategoryDataVoiceAudioDev Platform
PricingFree + $19-$89/user/moVoice included with ChatGPT Plus; Realtime API by usageFree + $12/mo Pro + enterprisePay per second of compute
Best forOps teams, marketers, anyone building dashboards from multiple sources.Voice chat users, developers building voice agents on OpenAI.Game developers, podcasters needing SFX, video creators needing background music.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Not for full songs with vocals
  • Shorter generation limits
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.S-tier for open-source model APIs. The default in this space.
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