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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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Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Le Chat (Mistral)
B
Rows
A
Cursor
S
OpenAI Voice / Realtime
S
TaglineFrench alternative. Fast, European, privacy-focused.Spreadsheets with AI + live integrations baked in.VS Code fork that made AI coding actually work.ChatGPT's voice + the Realtime API for developers.
CategoryChatbotsDataCodingVoice
PricingFree + $15/mo ProFree + $19-$89/user/moFree + $20/mo Pro + $40/mo BusinessVoice included with ChatGPT Plus; Realtime API by usage
Best forEuropean users with data residency needs. Fans of open-weight models.Ops teams, marketers, anyone building dashboards from multiple sources.Developers. Non-developers who want to ship working code.Voice chat users, developers building voice agents on OpenAI.
Strengths
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
Weaknesses
  • Smaller capability gap vs frontier models
  • Less polished UX
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
Kai's verdictB-tier overall, A-tier if GDPR/data residency matters. Solid backup option.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.
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