coatnet_2_cls(pretrained: bool = False, overrides: object = {})CoAtNet-2 image classifier (Dai et al., 2021).
Wider variant — dims=(128, 256, 512, 1024) — with the standard
CoAtNet head. Approximately 75M parameters, 84.1% ImageNet-1k
top-1 at 224x224 (Table 5).