From our Large Model Systems Organization (LMSYS), we introduce Vicuna-13B, an open-source chatbot trained by fine-tuning LLaMA on user-shared conversations collected from ShareGPT. Preliminary evaluation using GPT-4 as a judge shows Vicuna-13B achieves more than 90%* quality of OpenAI ChatGPT and Google Bard while outperforming other models like LLaMA and Stanford Alpaca in more than 90%* of cases. The cost of training Vicuna-13B is around $300. The training and serving code, along with an online demo, are publicly available for non-commercial use. Large Model Systems Organization is a group of researchers spanning UC Berkeley, Carnegie Mellon University, UC San Diego, and MBZUAI.
Learn more about Vicuna at vicuna.lmsys.org.