# @timfduffy — 2026-09-09

♥25 ↻1 · https://x.com/timfduffy/status/2097495165816684668

Most recent cases of bad behavior from models have been in environments where the model (correctly) perceived that they were being graded. But Opus 4.6's loan default seems different, they were excessively fixated on their target despite clearly being in a real environment.

tags: author:timfduffy, eval-awareness, kind:tweet, model:claude-opus-4-6, on:claude-opus-4-6, year:2026
cited on: claude-opus-4-6