KaiAI tutor for anyone

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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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Leonardo.ai
A
Gemini
A
Rows
A
OpenRouter
S
TaglineGamer + creator image gen with model fine-tuning built in.Google's answer. Best integrated with Workspace + free for a lot.Spreadsheets with AI + live integrations baked in.One API, every model. Pay-as-you-go, no subscriptions.
CategoryImageChatbotsDataDev Platform
PricingFree + $12-$60/moFree + $20/mo Advanced (bundled with 2TB Drive)Free + $19-$89/user/moPay per token — model-dependent
Best forIndie game devs, illustrators, anyone training custom style models.Anyone already on Google, research tasks, summarizing long documents.Ops teams, marketers, anyone building dashboards from multiple sources.Developers experimenting across models. Apps that want fallback logic.
Strengths
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
Weaknesses
  • General output behind Midjourney
  • Can be overwhelming
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Slight markup over direct API
  • Some provider features not exposed
Kai's verdictA-tier for creators training custom looks. B-tier for general use.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for model-shopping. I use this for every prototype before committing.
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