Cody (Yingquan) Wu

I tested GPT‑5.2‑think on a state‑of‑the‑art FFT benchmark: describing the split‑radix decimate‑in‑time FFT in a non‑recursive form. This time, it appeared overly confident—it skipped the web search and produced a completely incorrect answer, as shown here: chatgpt.com/s/t_697aea91ac…

@waterluffy Those are the benchmark works in algebraic coding theory, well established in 30 years ago

@CodyWueqs cody, what are these things

I’ve been benchmarking GPT against state-of-the-art topics in algebraic coding theory. Three months ago, GPT-5 Thinking correctly described the Berlekamp–Massey algorithm, but stumbled on the Berlekamp algorithm. I was surprised to see that GPT-5.2 Thinking can now properly describe the Berlekamp algorithm: chatgpt.com/s/t_6979532b7c… It even covered the lesser-known Koetter–Horiguchi formula: chatgpt.com/s/t_6979580a4b… One important caveat: this success relied on web search and verification, rather than deriving directly from first principles.

@FANELONMUS85433 18