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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
Fathom
S
ChatGPT Operator
B
Hex
A
TaglineRun any open-source AI model with an API call.Meeting notes, free forever for individuals.OpenAI's browser agent. Clicks and types on websites for you.Modern data notebook with Magic AI assistant.
Categorydev platformmeetingagentsdata
PricingPay per second of computeFree for individuals + $15-$29/user/mo teamsIncluded with ChatGPT Pro $200/moFree + $28+/user/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Solo operators, freelancers, small teams on a budget.Power users willing to pay $200/mo for a browser bot.Data teams at startups + enterprises.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Bot-joining model
  • Team features gated
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Overkill for casual users
  • Enterprise pricing
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for solo + free. The best free option, hands down.B-tier. Still early. Manus is more flexible for less money.A-tier for data teams. S-tier if you already live in SQL + Python.
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