kapynAI / Models

Anthropic engineer explains why Claude's writing got worse although the model got smarter

Claude's newer models produce denser, less readable text. Anthropic engineer Jackson Kernion explains that the shift toward optimizing for math, code, and technical explanations aimed at other AI models has turned the writing style into “overly-dense info dumps.” Opus 5.5 attempts to correct this, but Opus 4.6 remains the strongest pure writing model.

The Decoder·Sep 23, 2026

Opening Kapyn…