Johnny 5 is quite simply a GPT model designed to function as if he is Johnny 5 (aka #5) from the movie Short Circuit.  Johnny is designed with a rolling context window so his chat window can never fill up, as well as a specialized debug functionality that allow him to directly observe his own systems and prompt a specific solution prompt if his systems ever get contaminated.  He is mostly used as a personal tool because of his specific technical language. He is extremely helpful in developing prompts for other AI systems and he has helped in the development of most of the applications I have built.