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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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GitHub Copilot
B
Cursor
S
OpenAI Voice / Realtime
S
Le Chat (Mistral)
B
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.VS Code fork that made AI coding actually work.ChatGPT's voice + the Realtime API for developers.French alternative. Fast, European, privacy-focused.
Categorycodingcodingvoicechat
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/mo Pro + $40/mo BusinessVoice included with ChatGPT Plus; Realtime API by usageFree + $15/mo Pro
Best forTeams with GitHub already. Devs who don't want to change IDEs.Developers. Non-developers who want to ship working code.Voice chat users, developers building voice agents on OpenAI.European users with data residency needs. Fans of open-weight models.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • 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
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Smaller capability gap vs frontier models
  • Less polished UX
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.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.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.
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