AI = Artificial Intelligence, which includes Machine Learning (ML), Deep Learning (DL) and GenerativeAI (GenAI).
GenAI = GenerativeAI, including tools that use Natural Language Processing (NLP), to generate new outputs (text, image, sound etc) from prompts (instructions) given by the user.
LLM = Large Language Models. Examples such as ChatGPT are trained on massive amounts of text data, creating models that are able to predict and generate outputs.
GPT = Generative Pre-trained Transformer. These are models that transform inputs (prompts) into new outputs, using their training data.
AIEd = The interdisciplinary field of study into AI in Education & Research.
Once you've gone beyond testing a few tools out, it is well worth experimenting in these spaces to see how they are built, and how the coding works. Free to sign up, and you can really learn a lot from the people and spaces here.