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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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Runway
S
ChatGPT Operator
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Fireflies
A
TaglineRun any open-source AI model with an API call.The pro's AI video tool. Gen-4 is the current bar.OpenAI's browser agent. Clicks and types on websites for you.Sales-focused meeting AI with CRM integration.
Categorydev platformvideoagentsmeeting
PricingPay per second of computeFree + $15-$95/moIncluded with ChatGPT Pro $200/moFree + $10-$19/user/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Marketing video, pitch decks, b-roll, creative shorts.Power users willing to pay $200/mo for a browser bot.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
  • Most mature video workflow
  • Character consistency via Act-One
  • Gen-4 quality is production-grade
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Expensive at scale
  • Still needs post-editing
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Bot-joins (intrusive)
  • Gets expensive at team scale
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier. Market leader with reason. Start here for serious video.B-tier. Still early. Manus is more flexible for less money.A-tier for sales teams. B-tier for solo users.
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