Comparing Llama 2 Chat and ChatGPT: How They Perform in Question Answering

Meta AI has released its open-source large language model (LLM), Llama 2, which is available for free use in commercial applications. It comes in three sizes and supports context lengths of up to 4096 tokens. Llama Chat, the fine-tuned model of Llama 2, has been trained on over 1 million human annotations and is specifically tailored for conversational AI scenarios. The performance of Llama 2 in answering questions was compared with that of ChatGPT, showing that both models excel at answering questions based on real-world knowledge. However, Llama 2 faces challenges maintaining answer quality when confronted with complex text formatting. Llama 2 stands out by not requiring high-end GPUs and can operate smoothly on desktop-level GPUs, especially after undergoing low-bit quantization.