Proxy models are used to change the behavior of a model, for example, by including additional methods or different meta options. Both models operate on the database table of the original model. To create a proxy model, add proxy=True to the Meta class of the model.

The following example illustrates how to create a proxy model:

from django.db import models
from django.utils import timezone

class BaseContent(models.Model):
    title = models.CharField(max_length=100)
    created = models.DateTimeField(auto_now_add=True)

class OrderedContent(BaseContent):
    class Meta:
        proxy = True
        ordering = ['created']

    def created_delta(self):
        return timezone.now() - self.created

Here, we define an OrderedContent model that is a proxy model for the Content model. This model provides a default ordering for QuerySets and an additional created_delta() method. Both models, Content and OrderedContent, operate on the same database table, and objects are accessible via the ORM through either model.