Article continues below advertisementKaia Gerber is kicking off the year right! The Bottoms actress' longtime trainer, Kristy Godso, took to Instagram to give fans a look at Gerber's intense gym routine, sharing a montage that spotlighted the model's toned abs and strong physique. In one clip, Gerber rocked a plunging black workout set as she powered through treadmill runs and hip dips.Article continues below advertisementSource: @kirstygodso/InstagramKaia Gerber shared a workout video filmed at the gym.