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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ChatGPT S | Perplexity S | Skye A | ChatGPT Operator B | |
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| Tagline | The default. Strongest ecosystem + best multimodal breadth. | 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. | OpenAI's browser agent. Clicks and types on websites for you. |
| Category | Chatbots | Research | Agents | Agents |
| Pricing | Free + $20/mo Plus + $200/mo Pro | Free + $20/mo Pro | Waitlist / Beta (pricing not yet disclosed) | Included with ChatGPT Pro $200/mo |
| Best for | General use, voice chat, image generation, first-time AI users. | 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. | Power users willing to pay $200/mo for a browser bot. |
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| Kai's verdict | S-tier all-rounder. If you want one tool that does everything okay-to-great, this is it. | 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.) | B-tier. Still early. Manus is more flexible for less money. |
| Link | Open → | Open → | Open → | Open → |