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LMSYS ORG Projects Blog About Donations Chatbot Arena Open Menu Projects Blog About Donations Chatbot Arena Close Menu by: The Vicuna Team , Mar 30, 2023 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 code and weights , along with an online demo , are publicly available for non-commercial use. Vicuna (generated by stable diffusion 2.1) *According to a fun and non-scientific evaluation with GPT-4. Further rigorous evaluation is needed. After fine-tuning Vicuna with 70K user-shared ChatGPT conversations, we discover that Vicun...

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