Llama 2
About
Llama 2, developed by Meta AI and released in July 2023, is a prominent family of large language models designed as an open-source alternative to proprietary chatbots. Its models, available in multiple sizes from 7 billion to 70 billion parameters, provide varying levels of accuracy balanced with computational efficiency. Llama 2 supports both research and commercial use, fostering greater accessibility and innovation in the AI community. Emphasizing safety and usefulness, the model employs techniques like reinforcement learning from human feedback (RLHF) and features specialized Llama 2-Chat models optimized for conversational applications. This makes it a versatile tool for various AI-driven tasks 1 2 3.