2h agoOpus 4.8 launches with broad benchmark improvements over 4.7 but trails Mythos PreviewLiveBench evaluations for the model are expected shortlySentimentSentimentPos66.7%Neg33.3%Positive users express excitement and surprise over Opus 4.8's rapid release and benchmark gains while negative users dismiss the updates as incremental marketing with no real advances.3 comments with sentiment. View comments.