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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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Gemini
A
OpenRouter
S
Le Chat (Mistral)
B
Replicate
S
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.One API, every model. Pay-as-you-go, no subscriptions.French alternative. Fast, European, privacy-focused.Run any open-source AI model with an API call.
CategoryChatbotsDev PlatformChatbotsDev Platform
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Pay per token — model-dependentFree + $15/mo ProPay per second of compute
Best forAnyone already on Google, research tasks, summarizing long documents.Developers experimenting across models. Apps that want fallback logic.European users with data residency needs. Fans of open-weight models.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Slight markup over direct API
  • Some provider features not exposed
  • Smaller capability gap vs frontier models
  • Less polished UX
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier for model-shopping. I use this for every prototype before committing.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.S-tier for open-source model APIs. The default in this space.
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