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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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S
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OpenRouter
S
Fireflies
A
TaglineRun any open-source AI model with an API call.Vector + raster AI for designers. Actually controls the output.One API, every model. Pay-as-you-go, no subscriptions.Sales-focused meeting AI with CRM integration.
CategoryDev PlatformImageDev PlatformMeetings
PricingPay per second of computeFree + $12-$48/moPay per token — model-dependentFree + $10-$19/user/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Designers, brand teams, anyone needing vector output or tight style control.Developers experimenting across models. Apps that want fallback logic.Sales teams, customer success, anyone running many discovery calls.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
  • 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
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Less hyped than Midjourney
  • Learning curve for non-designers
  • Slight markup over direct API
  • Some provider features not exposed
  • Bot-joins (intrusive)
  • Gets expensive at team scale
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for designers. The only one that takes vectors seriously.S-tier for model-shopping. I use this for every prototype before committing.A-tier for sales teams. B-tier for solo users.
LinkOpen →Open →Open →Open →