You canto use the free version

This is a coloring tool, one thing is that it will not change the elements of the original image

Step 1: Upload the image

Step 2: Select the model, models 2 and 3 consume less (but the effect will be reduced a little), and model 2 is suitable for NSFW tasks.

Step 3: Select the image description method, the default is automatic reverse inference, manual is recommended

Step 4: After selecting manual description, describe in detail what you imagine the image to be after coloring

Step 5: Seed value, which is locked by default.