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TaglineRun any open-source AI model with an API call.Design + publish sites with AI assists built in.Anthropic's flagship — best reasoning + longest useful context.Spreadsheets with AI + live integrations baked in.
CategoryDev PlatformDesignChatbotsData
PricingPay per second of computeFree + $5-$30/moFree + $20/mo Pro + team/enterpriseFree + $19-$89/user/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Designers shipping marketing sites without engineers.Long writing, code, careful thinking, documents over 50 pages.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Less flexible than raw code
  • Pricing per-site adds up
  • Image generation is weak
  • No native web search on all tiers
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier for designer-led sites. S-tier if animations matter.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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