Other contributors have said "Difference between a stereotype and a prototype?" is the same question as "How is a stereotype different from a prototype?" If you believe that these are not asking the same thing and should be answered differently, click here
A stereotype is giving a name and identity to a group of people (for instance, Chavs, Gangsters, Hoodies). Mostly, these are false.
A prototype is a pre-release model of something. For instance, a car may have several prototypes made before it's release, each prototype contributing to the final product.
Yes, there are different stereotypes (as in more than one) between one group of people, and different stereotypes (as in not the same as other groups) for all groups of people. There are also...