AI Glossary
GPT
Also called generative pre-trained transformer
What does “GPT” mean?
GPT: Short for generative pre-trained transformer, the decoder-only design OpenAI introduced in 2018 and used for its GPT series of models. The name is also used loosely for chatbots in general, and "GPTs" is OpenAI's name for custom versions of ChatGPT.

What is an example of “GPT”?
GPT-3, released in 2020, showed that a large enough model could take on new tasks from just a few examples in the prompt.