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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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OpenAI Voice / Realtime
S
ChatGPT Operator
B
Hex
A
Fathom
S
TaglineChatGPT's voice + the Realtime API for developers.OpenAI's browser agent. Clicks and types on websites for you.Modern data notebook with Magic AI assistant.Meeting notes, free forever for individuals.
CategoryVoiceAgentsDataMeetings
PricingVoice included with ChatGPT Plus; Realtime API by usageIncluded with ChatGPT Pro $200/moFree + $28+/user/moFree for individuals + $15-$29/user/mo teams
Best forVoice chat users, developers building voice agents on OpenAI.Power users willing to pay $200/mo for a browser bot.Data teams at startups + enterprises.Solo operators, freelancers, small teams on a budget.
Strengths
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • 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
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
Weaknesses
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Overkill for casual users
  • Enterprise pricing
  • Bot-joining model
  • Team features gated
Kai's verdictS-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.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.S-tier for solo + free. The best free option, hands down.
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