It's an LLM, "pretending" and "truly beleiving" are the same, or rather don't exist.
It's like, when you use prompts like : "You're an helpful assistant", is it believing, pretending, or beleiving to be pretending to be an helpful assistant?
It's as funny as disconcerting to see intent and will attributed to probabiltities. Feels sometimes like we're close to making a religion out of this. History of the human race, i guess (https://www.youtube.com/watch?v=xuCn8ux2gbs for the ref).