Sarah Chieng(@MilksandMatcha):What happens when you give the quant trader’s bible to two frontier AI models? The Green Book is what traders use to prepare for firms like SIG and HRT, where I interned. And in high-frequency quant trading, being right isn’t enough. You have to be first. Inside Codex, I extracted all 183 questions and their official solutions. Then I gave GPT-5.6 Sol Ultrafast (via API) on @cerebras and Claude Opus 5 the exact same test, timed every answer, and blind-graded the results. One finished nearly three times faster, and got more answers right.

2026.08.20 16:43

What happens when you give the quant trader’s bible to two frontier AI models? The Green Book is what traders use to prepare for firms like SIG and HRT, where I interned. And in high-frequency quant trading, being right isn’t enough. You have to be first. Inside Codex, I extracted all 183 questions and their official solutions. Then I gave GPT-5.6 Sol Ultrafast (via API) on @cerebras and Claude Opus 5 the exact same test, timed every answer, and blind-graded the results. One finished nearly three times faster, and got more answers right.