The advancement of AI technology relies heavily on the research community's access to generative AI tools, such as language models. However, the current state of AI models is often restricted by proprietary walls, hindering the progress of innovation. To address this issue, Meta has released LLaMA 2 , which aims to democratize access to these powerful tools for researchers and commercial users across the globe. In this post, we will discuss LLaMA models and their latest version; LLaMA 2 . Note that this is just an introduction, in later posts, we will explore more advanced topics such as how to fine-tune LLaMA 2 and deploy them into production. Stay tuned.  What is LLaMa! In February 2023, Meta introduced a project known as LLaMA , which stands for Large Language Model Meta Artificial Intelligence. This extensive language model (LLM) has undergone training across a range of model sizes, spanning from 7 billion to 65 billion parameters. The variations in LLaMa models are attribut