ChatGPT is built on OpenAI’s GPT-3 model, one of the most powerful language processing AI systems. It uses machine learning techniques to generate responses to text inputs.
The model is first pre-trained on a large amount of internet text but doesn’t know specifics about which documents were part of its training set. In this pre-training phase, it learns to predict the next word in a sentence. For example, if you input “I like to eat”, it might predict the word “apples”. This helps it understand grammar, facts about the world, and some level of reasoning.
It then goes through a fine-tuning process on custom datasets created by OpenAI, which includes demonstrations of correct responses and comparisons to rank different responses. This is curated with human reviewers who follow guidelines provided by OpenAI.
ChatGPT does not have access to personal data about individuals unless it has been shared with it in the course of the conversation. It is designed to respect user privacy and confidentiality.