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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
Claude
S
Perplexity
S
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.One API, every model. Pay-as-you-go, no subscriptions.Anthropic's flagship — best reasoning + longest useful context.AI search done right. Cited answers, not chat theater.
CategoryChatbotsDev PlatformChatbotsResearch
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Pay per token — model-dependentFree + $20/mo Pro + team/enterpriseFree + $20/mo Pro
Best forAnyone already on Google, research tasks, summarizing long documents.Developers experimenting across models. Apps that want fallback logic.Long writing, code, careful thinking, documents over 50 pages.Replacing Google for any question where you want a cited answer in seconds.
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
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Slight markup over direct API
  • Some provider features not exposed
  • Image generation is weak
  • No native web search on all tiers
  • Not a general chatbot
  • Answers can be shallow on complex topics
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.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.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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