Earlier this year, Mistral AI introduced Mistral-7b, an open-source large language model (LLM) that gained notable attention for its efficiency and capability, rivaling larger models like Llama-2-13b. Following this, the company released Mixtral 8x7B, a notable open-source model utilizing the Mixture of Experts (MoE) architecture, which is speculated to be used by GPT-4. Fine-tuning models like Mixtral 8x7B or Mistral 7B can significantly enhance performance for specific domains, though the process can be complex. To facilitate this, a step-by-step guide using Ludwig, an open-source declarative machine learning framework, has been developed to simplify the fine-tuning process with optimizations like 4-bit quantization and gradient checkpointing to reduce memory usage. The guide also highlights benchmarks showing Mixtral's competitive performance against larger models and encourages users to enhance model performance through fine-tuning with task-specific data. Predibase offers a platform for easily fine-tuning and deploying these models, providing tools and community support to help developers achieve high accuracy with less data labeling, and explore advanced methods like Reinforcement Fine-Tuning (RFT) for further performance gains.