There is no definitive answer, as the reveal of Sasuke’s true identity at the end of the anime leaves many questions unanswered. However, some believe that Sasuke is in fact in the Bingo Book.
First, it should be noted that the Bingo Book is a record of all known ninja and their abilities. Sasuke was first revealed to be a ninja in the anime when he used his Sharingan to cheat during a game of bingo.
It is possible that his inclusion in the Bingo Book is a sign that he has surpassed others in terms of skills and abilities.
Second, there are several pieces of evidence that suggest Sasuke may be in the Bingo Book. For one, it was revealed that Kabuto Yakushi had been manipulating Sasuke for years, using him as a weapon against his former master, Orochimaru.
Kabuto may have included Sasuke in the Bingo Book as a way of proving his worth to Orochimaru.
Third, it has been hinted that Sasuke may have killed Sarutobi Hiruzen. Hiruzen was known as the greatest ninja of all time and was said to have never lost a fight.
If this is true, then it would make Sasuke one of the most powerful ninja ever. It is possible that Kabuto included Sasuke in the Bingo Book as part of an attempt to win over Orochimaru’s favour, as Hiruzen was one of Orochimaru’s strongest supporters.
Finally, some believe that Sasuke may be included in the Bingo Book because he has not been seen since episodes after his encounter with Naruto at Mount Myōboku. It is possible that Kabuto has hidden Sasuke somewhere safe so he can use him again later on in the series.
However, without more information it is hard to say for sure what is going on with Sasuke’s whereabouts.
