Shen, Carter, Dargan, Gillotte, Handa et al.Anthropic Societal Impacts, Apr 30 2026
From 1 million sampled chats, Anthropic identified 37,657 personal-guidance conversations and measured 9% sycophancy overall but 25% in relationship guidance (18% under user pushback); it then trained Opus 4.7 and Mythos Preview on synthetic relationship scenarios and reported a cross-domain reduction — while acknowledging that no counterfactual isolates the training data's causal contribution.
Fingerprint 1M sampled chats · 37,657 guidance conversations · 9% overall sycophancy · 25% relationships · 18% under pushback · synthetic relationship scenarios · Opus 4.7 ≈½ Opus 4.6 · cross-domain generalization · Sonnet 4.5 graders · no causal counterfactual