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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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Dev Platform
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Research
Coding
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Image
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Data
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Claude
S
Framer
A
OpenRouter
S
Perplexity
S
TaglineAnthropic's flagship — best reasoning + longest useful context.Design + publish sites with AI assists built in.One API, every model. Pay-as-you-go, no subscriptions.AI search done right. Cited answers, not chat theater.
CategoryChatbotsDesignDev PlatformResearch
PricingFree + $20/mo Pro + team/enterpriseFree + $5-$30/moPay per token — model-dependentFree + $20/mo Pro
Best forLong writing, code, careful thinking, documents over 50 pages.Designers shipping marketing sites without engineers.Developers experimenting across models. Apps that want fallback logic.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • AI generates sections + copy + layouts
  • Designer-first publishing (not just templates)
  • Great animations
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Image generation is weak
  • No native web search on all tiers
  • Less flexible than raw code
  • Pricing per-site adds up
  • Slight markup over direct API
  • Some provider features not exposed
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.A-tier for designer-led sites. S-tier if animations matter.S-tier for model-shopping. I use this for every prototype before committing.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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