Yolov8 does not use cuda

Question

I installed cuda. torch.cuda.is_available() returns true. torch.cuda.get_device_name(0) returns NVIDIA GeForce RTX 3050 Ti Laptop GPU. I would like to ask for help on how to get the model to use VRAM and GPU. CUDA 12.1

from ultralytics import YOLO
model = YOLO('yolov8n.pt')
model.to("cuda")
results = model.predict(source="videoplayback.mp4", show=True, device="cuda")
print(results.cuda())