Claude 4.5 Opus' Soul Document. Richard Weiss managed to get Claude 4.5 Opus to spit out this 14,000 token document which Claude called the "Soul overview". Richard says: While extracting Claude 4.5 Opus' system message on its release date, as one does, I noticed an interesting particularity. I'm used to models, starting with Claude 4, to hallucinate sections in the beginning of their system message, but Claude 4.5 Opus in various cases included a supposed "soul_overview" section, which sounded ...