CIFAR-10
The CIFAR-10 dataset consists of 60000 color images, each 32 by 32 pixels.
Each image belongs to one of ten classes (airplane, automobile, bird, cat, deer, dog, frog, horse, ship and truck).
CIFAR-100
CIFAR-100 is just like the CIFAR-10, except it has 100 classes, groupd into 20 superclasses, containing 600 images each.