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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Perplexity S | ChatGPT Operator B | smol-audio A | Skye A | |
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| Tagline | AI search done right. Cited answers, not chat theater. | OpenAI's browser agent. Clicks and types on websites for you. | A free, open collection of Colab notebooks that makes fine-tuning Whisper, Parakeet, Voxtral, Granite Speech, and Audio Flamingo 3 actually approachable on commodity GPUs. | 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 | Research | Agents | Audio | Agents |
| Pricing | Free + $20/mo Pro | Included with ChatGPT Pro $200/mo | Free (open-source, Apache 2.0) | Waitlist / Beta (pricing not yet disclosed) |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Power users willing to pay $200/mo for a browser bot. | ML engineers and audio researchers who want reproducible, low-friction recipes for fine-tuning open-source speech models on custom domains without standing up their own GPU infra. | 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 search. I use it before Google now. If you're still Googling everything, try this for a week. | B-tier. Still early. Manus is more flexible for less money. | If you've ever rage-quit trying to fine-tune Whisper on a niche language or domain, smol-audio is the cookbook you wished existed — transparent, practical, and actually runs on free Colab. It's a practitioner's toolkit, not a product, but that's exactly what makes it useful. (Verdict pending Phi's full review.) | 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 → | Open → |