AI ModelsLast updated: April 2026
GPT (Generative Pre-trained Transformer)
OpenAI's series of language models that power ChatGPT.
In Plain English
GPT stands for Generative Pre-trained Transformer. It's a type of large language model developed by OpenAI. "Generative" means it creates new content, "Pre-trained" means it learned from data before being deployed, and "Transformer" refers to its underlying architecture. As of early 2026, ChatGPT runs on the GPT-5 series of models, with GPT-5.4 being the latest version. OpenAI releases updated versions regularly, so check ChatGPT for the current model.
💡Real-World Example
When people say "I asked GPT" or "ChatGPT told me," they're referring to these models.
Related Terms
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