ChatGPT is an artificial intelligence language model developed by OpenAI. It is part of the GPT (Generative Pre-trained Transformer) family of models, which are designed to generate human-like text based on input prompts. ChatGPT is specifically trained to carry out conversational tasks, such as answering questions, completing sentences, and engaging in dialogue. It has been pre-trained on a large corpus of text data and fine-tuned on specific tasks to improve its performance. As a result, ChatGPT can generate responses that are often coherent, relevant, and natural-sounding.