ChatGPT is an artificial intelligence chatbot developed by OpenAI based on the company's Generative Pre-trained Transformer (GPT) series of large language models (LLMs). [2] ChatGPT is built upon OpenAI's foundational GPT models , specifically GPT-3.5 and GPT-4 , and has been fine-tuned for conversational applications using a combination of supervised and reinforcement learning techniques.
ChatGPT was launched on November 30, 2022, and gained attention for its detailed and articulate responses spanning various domains of knowledge. [3] However, a notable drawback has been its tendency to confidently provide inaccurate information . [4]
By January 2023, it had become the fastest-growing consumer software application in history, gaining over 100 million users and contributing to OpenAI's valuation growing to US$ 29 billion. [5] [6] Within months, other businesses accelerated competing LLM products such as Google PaLM-E , Baidu ERNIE , and Meta LLaMA . [7]