ChatGPT is a language model developed by OpenAI, a leading artificial intelligence research organization. OpenAI was founded in 2015 with the goal of promoting and developing friendly AI that benefits humanity.

ChatGPT is based on the Transformer architecture, which was introduced in a 2017 paper by Vaswani et al. The model was trained on a diverse range of internet text, including websites, articles, and books, to enable it to generate human-like text.

Since its release, ChatGPT has been used for a variety of applications, including language translation, question answering, and text generation. The model's ability to generate coherent and fluent text has made it popular for use in chatbots and virtual assistants, where it can respond to users in real-time and carry out a wide range of conversational tasks.

OpenAI has continued to improve and fine-tune the ChatGPT model, making it even more powerful and capable. The most recent version of the model, GPT-3, has received widespread attention for its advanced language abilities and has been used to create new applications and services in various industries.

In conclusion, ChatGPT is a remarkable example of the progress being made in the field of AI and its potential to transform our world. OpenAI's work in developing and improving the model is helping to advance our understanding of natural language processing and shaping the future of AI.