Universal Primer is a Generative Pre-trained Transformer (GPT) on top of OpenAI's ChatGPT that acts as a learning assistant. This AI-powered tool can converse on a wide variety of subjects and provide in-depth insights when asked. It's designed to aid in the educational process by making complex concepts easier to understand and thus facilitating faster learning. The GPT can explain topics ranging from technology, such as 'Transformers' in language model engineering or the practical application of React and Redux in software development, to mathematics and physics concepts like 'Kalman filters' or the derivation of 'Navier-Stokes equations'. The primary function of Universal Primer is to serve as a go-to resource for anyone looking to gain knowledge on any topic of interest. The user need only express their curiosity about a subject and Universal Primer GPT will strive to elucidate on the prompt, thereby enabling the user to learn about anything they desire. Signed up users can engage in a direct chat with the GPT which requires ChatGPT Plus. The Prime advantage of this GPT is its highly flexible nature in terms of the subjects it can converse on, making it a valuable tool in the field of AI-assisted learning and education.