In general, LM-generated text is still easily distinguishable by other LMs. Even though we humans can not tell the difference, the way they generate text is not really human-like. They are much more predictable, simply because they are not trying to convey information as humans do, they are guessing the most probable sequence of tokens.
Humans are less predictable, because they have always something new to say, LMs on the other hand are like the most cliche person ever.
In general, LM-generated text is still easily distinguishable by other LMs. Even though we humans can not tell the difference, the way they generate text is not really human-like. They are much more predictable, simply because they are not trying to convey information as humans do, they are guessing the most probable sequence of tokens.
Humans are less predictable, because they have always something new to say, LMs on the other hand are like the most cliche person ever.
You should try turning the temperature up.