10h agoAnthropic updates Opus 4.8 to allow mid-conversation system instruction changes while preserving prompt cache hitsThe update reduces API latency and costs for applications.SentimentSentimentPos50%Neg50%Positive users praise Claude Opus 4.8 for knowing its org chart better than coworkers, while negative users mock it for gaslighting itself by flagging the unofficial account in caching queries.2 comments with sentiment. View comments.