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 | FlashQLA A | ChatGPT Operator B | Fireflies A | |
|---|---|---|---|---|
| Tagline | AI search done right. Cited answers, not chat theater. | Qwen's open-source GPU kernel library that squeezes 2–3× more speed out of linear attention on NVIDIA Hopper hardware — if you're lucky enough to own one. | OpenAI's browser agent. Clicks and types on websites for you. | Sales-focused meeting AI with CRM integration. |
| Category | Research | Dev Platform | Agents | Meetings |
| Pricing | Free + $20/mo Pro | Free (MIT License, open-source) | Included with ChatGPT Pro $200/mo | Free + $10-$19/user/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | ML engineers and researchers running Qwen3.x linear-attention models on H100/H200 clusters who need to close the gap between theoretical GDN efficiency and actual hardware throughput. | Power users willing to pay $200/mo for a browser bot. | Sales teams, customer success, anyone running many discovery calls. |
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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. | A genuinely impressive, laser-focused kernel optimization from the Qwen team — real speedups on real hardware — but its utility is gated behind Hopper GPUs and Qwen's GDN architecture, making it a niche power tool rather than a broadly useful library. (Verdict pending Phi's full review.) | B-tier. Still early. Manus is more flexible for less money. | A-tier for sales teams. B-tier for solo users. |
| Link | Open → | Open → | Open → | Open → |