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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
OpenRouter
S
Fireflies
A
Rows
A
Stable Audio
A
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Sales-focused meeting AI with CRM integration.Spreadsheets with AI + live integrations baked in.Stability AI's open audio model. Loops + SFX + background.
CategoryDev PlatformMeetingsDataAudio
PricingPay per token — model-dependentFree + $10-$19/user/moFree + $19-$89/user/moFree + $12/mo Pro + enterprise
Best forDevelopers experimenting across models. Apps that want fallback logic.Sales teams, customer success, anyone running many discovery calls.Ops teams, marketers, anyone building dashboards from multiple sources.Game developers, podcasters needing SFX, video creators needing background music.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
  • 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
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Bot-joins (intrusive)
  • Gets expensive at team scale
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Not for full songs with vocals
  • Shorter generation limits
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier for sales teams. B-tier for solo users.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.
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