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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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Hex
A
OpenAI Voice / Realtime
S
Rows
A
Manus
S
TaglineModern data notebook with Magic AI assistant.ChatGPT's voice + the Realtime API for developers.Spreadsheets with AI + live integrations baked in.Autonomous AI agent that actually finishes tasks.
CategoryDataVoiceDataAgents
PricingFree + $28+/user/moVoice included with ChatGPT Plus; Realtime API by usageFree + $19-$89/user/moFree tier + $39-$199/mo
Best forData teams at startups + enterprises.Voice chat users, developers building voice agents on OpenAI.Ops teams, marketers, anyone building dashboards from multiple sources.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • SQL + Python + no-code in one notebook
  • Magic AI writes queries + viz for you
  • Team-grade collaboration
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
Weaknesses
  • Overkill for casual users
  • Enterprise pricing
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
Kai's verdictA-tier for data teams. S-tier if you already live in SQL + Python.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier in the agent category. The first one I'd give to a non-technical friend.
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