Kimi K3.1 Pro writing style shift: fewer em dashes and asides, more bold, headings and tables

ArtificialAnlys · x · 2026-11-03

Follow-up in the same thread: compared to Kimi K3, Kimi K3.1 Pro's responses use fewer parenthetical asides, em dashes, contractions, and italics, but more bold text, headings (1.16→1.73 per response) and tables (0.02→0.09).

The attached charts give per-item data across length, structure, punctuation and emphasis characteristics.

Related event: AA Bench: Kimi K3.1 Pro Shows Largest Personality Shift on Record(4 posts)→

Original post →

More from Models

Models channel →