A. GPT-4: Developed by OpenAI, it focuses on large-scale, versatile language processing with advanced capabilities in understanding, generating text, and maintaining context in conversations. It is particularly effective in generating detailed, contextually rich responses across a wide range of applications. Llama 3.1: Developed by Meta, it emphasizes efficiency and performance optimization with a focus on delivering high performance with fewer parameters compared to GPT-4. Llama 3.1 is especially strong in specific domains where it has been fine-tuned, offering highly accurate and context-aware responses.