GPT may refer to: Computing Generative pre-trained transformer, a family of artificial intelligence language models ChatGPT, a chatbot/Generative Pre-trained Transformer model developed by OpenAI GUID Partition Table, a disk partitioning standard Get paid to surf, an on line business model Google Publisher Tag, a JavaScript tag embedded in HTML pages to display ads served with DoubleClick for Publishers Biology Alanine transaminase or glutamate pyruvate transaminase Goniopora toxin UDP-N-acetylglucosamine—undecaprenyl-phosphate N-acetylglucosaminephosphotransferase Companies GEC Plessey Telecommunications, a defunct British telecommunications manufacturer GPT Group, an Australian property investment company Other uses Gulfport–Biloxi International Airport, in Mississippi General purpose technology, in economics Generalized probabilistic theory, a general framework to describe the operational features of physical theories. Grounded practical theory, a social science theory