LLaMA Series (Meta AI)Overview: Developed by Meta AI, the LLaMA series (LLaMA, LLaMA 2, LLaMA 3, LLaMA 3.1, LLaMA 4) is among the most influential open-source LLMs. LLaMA 3.1, released on July 23, 2024, includes models with 8B, 70B, and 405B parameters, with the 405B model being the largest open-source model to date. LLaMA 4, released in April 2025, introduced multimodal capabilities (text, images, short videos) and context windows up to 256,000 tokens.
Key Features:Optimized for research and enterprise applications, excelling in multilingual dialogue, reasoning, and coding.
LLaMA 3.1 405B supports complex tasks like synthetic data generation and knowledge distillation.
LLaMA 3.3 70B Instruct offers performance comparable to top closed-source models like GPT-4o, with a 128K-token context window.