Board Thread:Theories and Speculation/@comment-1872728-20200725151448/@comment-46279039-20200729231242

We don't know exactly when Oro meet the White Snake. But finding him doesn't mean you become instantly a Sage... You become a Sage when you enter the Sage Mode, and you can use Senpou techniques... Training takes a long time, we know that Jiraiya took much longer than Naruto to become a Sage.

Orochimaru is not a Sage.