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 | Rows A | FlashQLA A | Devin A | |
|---|---|---|---|---|
| Tagline | AI search done right. Cited answers, not chat theater. | Spreadsheets with AI + live integrations baked in. | 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. | Cognition Labs' autonomous coding engineer. |
| Category | Research | Data | Dev Platform | Agents |
| Pricing | Free + $20/mo Pro | Free + $19-$89/user/mo | Free (MIT License, open-source) | $500/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Ops teams, marketers, anyone building dashboards from multiple sources. | 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. | Engineering teams offloading tickets. Ops/platform work. |
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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-tier. The most interesting spreadsheet in years. Great for ops dashboards. | 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.) | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. |
| Link | Open → | Open → | Open → | Open → |