Models & Products
GPT (Generative Pre-trained Transformer)
Definition
A family of language models developed by OpenAI. GPT models are trained to predict the next token in a sequence and can perform a wide range of language tasks. GPT-4, GPT-4o, and GPT-5 are prominent members of this family.
In Plain English
The name for OpenAI's AI models — the ones behind ChatGPT. The letters stand for "Generative Pre-trained Transformer." Each new version (GPT-4, GPT-5) is smarter and more capable than the last.