Meta LlamaLlama Guard 4 is a multimodal content safety classifier derived from Llama 4 Scout and fine-tuned for both prompt and response classification. It acts as an LLM: it generates text that indicates whether a given prompt or response is safe or unsafe and, if unsafe, lists the content categories violated. It is aligned with the standardized MLCommons hazards taxonomy and moderates English and multiple other supported languages, including mixed text-and-image prompts with multiple images. It is integrated into the Llama Moderations API for safety classification of text and images.