Compare AI tools
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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Claude S | Perplexity S | Skye A | |
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| Tagline | Anthropic's flagship — best reasoning + longest useful context. | AI search done right. Cited answers, not chat theater. | An agentic iPhone home screen that replaces your static icon grid with AI widgets that proactively surface health, calendar, finance, and local context — without you having to open a single app. |
| Category | Chatbots | Research | Agents |
| Pricing | Free + $20/mo Pro + team/enterprise | Free + $20/mo Pro | Waitlist / Beta (pricing not yet disclosed) |
| Best for | Long writing, code, careful thinking, documents over 50 pages. | Replacing Google for any question where you want a cited answer in seconds. | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. |
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| Kai's verdict | 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. | The concept is genuinely compelling — turning the home screen into a living AI layer is a smarter bet than yet another chat interface — but this is vaporware until it ships publicly and we see whether Apple's sandbox lets it breathe. (Verdict pending Phi's full review.) |
| Link | Open → | Open → | Open → |