How many images can each subscription generate respectively?

The number of images you can generate depends on the GPU you are using and the complexity of the workflow.

If you run the default workflow on an L4 GPU and use the SD1.5 model, the average time to generate an image is 30 seconds.

The Hobbyist plan can generate about 700 images per month, and the Pro plan can generate over 2100 images per month.