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.
Pick tools (4 selected)
Coding
Image
Productivity
Writing
Marketing
Lex A | ChatGPT Operator B | Skye A | Replicate S | |
|---|---|---|---|---|
| Tagline | Google Docs with an AI collaborator baked in. | OpenAI's browser agent. Clicks and types on websites for you. | 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. | Run any open-source AI model with an API call. |
| Category | Writing | Agents | Agents | Dev Platform |
| Pricing | Free + $12/mo | Included with ChatGPT Pro $200/mo | Waitlist / Beta (pricing not yet disclosed) | Pay per second of compute |
| Best for | Essays, long-form drafts, thinking on the page. | Power users willing to pay $200/mo for a browser bot. | iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day. | Developers using open-source models (Flux, SDXL, Whisper, etc). |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | B-tier. Still early. Manus is more flexible for less money. | 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.) | S-tier for open-source model APIs. The default in this space. |
| Link | Open → | Open → | Open → | Open → |