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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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Le Chat (Mistral)
B
OpenRouter
S
GitHub Copilot
B
Lex
A
TaglineFrench alternative. Fast, European, privacy-focused.One API, every model. Pay-as-you-go, no subscriptions.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Google Docs with an AI collaborator baked in.
Categorychatdev platformcodingwriting
PricingFree + $15/mo ProPay per token — model-dependentFree (limited) + $10/mo Pro + $19/mo BusinessFree + $12/mo
Best forEuropean users with data residency needs. Fans of open-weight models.Developers experimenting across models. Apps that want fallback logic.Teams with GitHub already. Devs who don't want to change IDEs.Essays, long-form drafts, thinking on the page.
Strengths
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Smaller capability gap vs frontier models
  • Less polished UX
  • Slight markup over direct API
  • Some provider features not exposed
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictB-tier overall, A-tier if GDPR/data residency matters. Solid backup option.S-tier for model-shopping. I use this for every prototype before committing.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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