It depends on the bonus and on the games you play.
The $10 Caesars Palace Online Casino no deposit bonus playthrough is just 1x on slots. It’s 2x on video poker and 5x on other casino games (besides craps, which does not count).
The Caesars Casino deposit match playthrough is 5X on slot games, 30X on video poker games, and 75X on all other casino games (besides craps).