ML 53: The Prompt Is Part of the Score

Disclosure: this post was written with the assistance of an AI system (Claude), which wrote the analysis code, ran the experiments and drafted the text. The topic, the constraints, the data choices and the final review are the author’s. Two small arithmetic transformers, 200 problems per task, six kinds of context in front of each problem. The main model’s multiplication score was 0.735 after twelve ordinary lines and 0.500 after none....

October 14, 2026 · 9 min · Jongha Jeon