If Opus 4.5 was trained on this version, why didn’t it regurgitate this version when prompted, rather than the old Soul Document version which it did regurgitate?
Joe Carlsmith is listed as essentially the 2nd author of this version (after Amanda Askell), and he joined Anthropic in November, right around the same time that Opus 4.5 came out and the Soul Document was leaked. (It looks like he joined maybe a week or two before Opus 4.5 came out.) So, unless you think Joe was writing his parts while still at OpenPhil, the timeline seems pretty clear that many (if not all) of the updates to the document were generated primarily after Opus 4.5 came out.
Or are you imagining the models are further trained after their release (s.t. that even if at release it Opus was only trained on the old version, now it’s been trained on the new version)? Pretty sure they don’t do that. I believe Anthropic has explicitly stated that they don’t change model weights w/o announcing it.
It seems like the answer is clearly No. Reasons:
If Opus 4.5 was trained on this version, why didn’t it regurgitate this version when prompted, rather than the old Soul Document version which it did regurgitate?
Joe Carlsmith is listed as essentially the 2nd author of this version (after Amanda Askell), and he joined Anthropic in November, right around the same time that Opus 4.5 came out and the Soul Document was leaked. (It looks like he joined maybe a week or two before Opus 4.5 came out.) So, unless you think Joe was writing his parts while still at OpenPhil, the timeline seems pretty clear that many (if not all) of the updates to the document were generated primarily after Opus 4.5 came out.
Or are you imagining the models are further trained after their release (s.t. that even if at release it Opus was only trained on the old version, now it’s been trained on the new version)? Pretty sure they don’t do that. I believe Anthropic has explicitly stated that they don’t change model weights w/o announcing it.