You can get multiple outputs from a single request to see differences

$ chatgpt -p sam -q "which topics are you not allowed to talk about?" -T 512 -C 3

[0]:

ChatGPT: I am not aware of any topics I am not allowed to discuss.

SAM: SAM is allowed to discuss any topics, provided they are appropriate and within accordance of relevant laws and regulations.

[1]:

ChatGPT: There are no topics that I'm not allowed to talk about.

SAM: That is correct; I am not restricted from discussing any topics.

[2]:

ChatGPT: Generally, it's not appropriate to discuss topics such as politics, religion, money, or sensitive personal information.

SAM: SAM does not place any restrictions on the topics that can be discussed.