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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Stripe Link A | Fathom S | ChatGPT Operator B | Sora A | |
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| Tagline | A digital wallet that lets AI agents spend on your behalf — without ever seeing your actual card number. | Meeting notes, free forever for individuals. | OpenAI's browser agent. Clicks and types on websites for you. | OpenAI's video model. Long clips, cinematic quality. |
| Category | Agents | Meetings | Agents | Video |
| Pricing | Free for consumers; standard Stripe per-transaction fees for merchants | Free for individuals + $15-$29/user/mo teams | Included with ChatGPT Pro $200/mo | Included with ChatGPT Plus/Pro |
| Best for | Anyone running autonomous AI agents (shopping bots, booking assistants, personal AI) who wants delegated payment capability without handing over raw card data. | Solo operators, freelancers, small teams on a budget. | Power users willing to pay $200/mo for a browser bot. | ChatGPT subscribers experimenting with cinematic shots. |
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| Kai's verdict | 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 solo + free. The best free option, hands down. | B-tier. Still early. Manus is more flexible for less money. | A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros. |
| Link | Open → | Open → | Open → | Open → |