OpenAI has created a highly advanced language model known as ChatGPT. This model belongs to the GPT (Generative Pretrained Transformer) family and is based on deep learning and natural language processing (NLP) technologies. ChatGPT has been created to generate text responses to text-based input that is close to the way humans converse. This has been made possible by training it on a massive collection of text data which enables it to comprehend the context and purpose of a user's query and generate replies accordingly.

One of the remarkable capabilities of ChatGPT is its capacity to generate text that is context-dependent. This means that it can generate appropriate and pertinent replies to a wide array of questions and requests, from simple factual queries to complex conversations on an extensive range of topics.

Another remarkable attribute of ChatGPT is its potential to carry out various NLP tasks such as text summarization, translation, and text generation. This flexibility makes it an invaluable tool for a variety of uses, including conversational AI systems.