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

Technology · en

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

The Decoder · Sep 23, 2026, 3:14 PM UTC

Anthropic employee Jackson Kernion explains why newer Claude models write so oddly. Optimizing for math, code, and technical explanations aimed at other AI models has created a style that sounds like "overly-dense info dumps" to humans. Opus 5.5 tries to fix this, but Opus 4.6 remains unmatched as a pure writing model.…