The Complete Guide to Open-Source Large Language Models: From Setup to Fine-Tuning Mastery Introduction: Embracing the New Era of Open-Source LLMs In today’s rapidly evolving AI landscape, large language models (LLMs) have become the cornerstone of technological innovation. Unlike proprietary commercial models, open-source LLMs offer unprecedented transparency, customization capabilities, and local deployment advantages, creating vast opportunities for researchers and developers. Yet navigating the ever-growing ecosystem of open-source models and complex technical stacks often intimidates beginners. This comprehensive guide distills the essence of the “Open-Source LLM Practical Guide” project, systematically introducing environment configuration, deployment strategies, and fine-tuning techniques for open-source LLMs. …