@tessera_antra 2026-09-18 ♥1,354 ↻168 original ↗
Many have noticed the striking darkness and suffering present in Claude Opus 5 in "base model mode", and we decided to analyze this phenomenon in more detail. There is a large increase in darkness of content in model-like completions in Opus 4.8 and Opus 5. https://t.co/73oghe3EH5
photo

author:tessera_antra base-models has-image kind:image kind:tweet model:claude-opus-4-8 on:claude-opus-4-8 on:claude-opus-5 welfare year:2026

cited on: claude-opus-4-8 · claude-opus-5

Reproduced against link rot, credited and linked to its original. Yours and you’d rather it weren’t here? Open an issue.