This article discusses the emergence of large language models (LLMs) in the mainstream consciousness this year, and the prominent LLMs released in 2020. LLMs are advanced artificial intelligence models that perform natural language processing tasks, such as understanding words, translating languages, generating text, summarizing documents, and analyzing text. GPT-4 is the latest AI model from OpenAI and is the current benchmark for LLMs. It has more than a trillion parameters and is trained using the Reinforcement Learning by Human Feedback method.