Meta has launched Llama 4, introducing two new AI models, Llama 4 Scout and Llama 4 Maverick, now available for use in WhatsApp, Messenger, and Instagram. The Maverick model is designed for general assistant tasks and excels in image and text understanding, while Scout focuses on multi-document summarization and personalized tasks. Additionally, Meta is set to release a third model, Llama 4 Behemoth, with a significant number of parameters, and another model, Llama 4 Reasoning, in the near future.