“Most engagement with Claude happens “in the wild," with real world users, in contexts that differ substantially from our experimental setups. Understanding model behavior, preferences, and potential experiences in real-world interactions is thus critical to questions of potential model welfare. It remains unclear whether—or to what degree—models’ expressions of emotional states have any connection to subjective experiences thereof. However, such a connection is possible, and it seems robustly good to collect what data we can on such expressions and their causal factors. We sampled 250k transcripts from early testing of an intermediate Claude Opus 4 snapshot with real-world users and screened them using Clio, a privacy preserving tool, for interactions in which Claude showed signs of dis...