It's not a "confession". Don't abuse the English language. The AI system doesn't have a conscience, so it can't feel guilty or feel bad or apologetic. It is incapable of confessing to things. All it can do is "say" or "write".
Similarly, AI agents don't "hallucinate". They can't have "hallucinations" because they don't have a conception of reality to begin with. Rather, they have "errors" and "error rates".