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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Skye A | Sora A | Stripe Link A | NotebookLM S | |
|---|---|---|---|---|
| Tagline | 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 video model. Long clips, cinematic quality. | A digital wallet that lets AI agents spend on your behalf — without ever seeing your actual card number. | Google's research notebook. Turns your docs into a podcast. |
| Category | Agents | Video | Agents | Research |
| Pricing | Waitlist / Beta (pricing not yet disclosed) | Included with ChatGPT Plus/Pro | Free for consumers; standard Stripe per-transaction fees for merchants | Free |
| Best for | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. | ChatGPT subscribers experimenting with cinematic shots. | Anyone running autonomous AI agents (shopping bots, booking assistants, personal AI) who wants delegated payment capability without handing over raw card data. | Students, researchers, anyone with a stack of PDFs or a topic to learn. |
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| Kai's verdict | 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.) | A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros. | Stripe Link is the most credible first move toward a real agentic payment layer — the one-time-use card model is genuinely clever, and the existing merchant network gives it a head start no startup wallet can match. But the 'approve every transaction' UX will get old fast, and the hard part (autonomous spending with guardrails) is still on the roadmap. (Verdict pending Phi's full review.) | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. |
| Link | Open → | Open → | Open → | Open → |