Recely, an iernal docume details the AI model Cloud 4.5 Opus (Claude 4.5 Opus) is revealed to be “the soulChatbot refers. This docume actually helps to form the character and how the model ieracts with the users. Ahropic also confirmed that the said docume actually existed and was used in the model learning process.
Richard Weiss, the person who discovered this docume, explained on the LessWrong website how he was able to access a set of iernal model documes by using a prompt to view cloud system commands. In one of these documes, there is a reference to “Soul Overview” has existed. Weiss then asked the model to reproduce this docume, and the result was an approximately 11,000-word file that apparely defined Claude’s personality and behavioral framework.
Opus Ahropic Cloud 4.5 AI “Ghost” framework
This docume is based on principles safety and commitme model to Produce healthy outputs and safe It focuses and constaly reminds Claude that “being useful to humans is one of the most importa missions of the model” and that it should not go io areas that conflict with ahropic moral red lines. Such documes are usually used to establish the tone, ethics, limits of accouability and responsibility of language models.
More ierestingly, Weiss claims to have requested the docume from the cloud 10 times and each time exactly the same text was produced, which he says greatly increases the likelihood of the docume being genuine. Several Reddit users were also able to retrieve similar sections of the same docume from the cloud, indicating that the model likely has access to a copy of it in its iernal data or training memory.
Amanda Askell, a philosopher and member of Ahropic’s technical team, confirmed in a post on the X social network that the model’s output is “based on a real docume” that was used during the learning process. He also said that this docume is still being revised and its full version will be published soon. The model doesn’t always reproduce the iernal documes perfectly, but rece outputs have been “largely consiste with the original,” according to Skell.
