#primarytags-aws-sagemaker-fine-tuning-llama-3-cost-optimization-llm-secondarytags-lora-spot-instances-model-training-aws-cost-open-source-ai-mistral-hugging-face-longtailtags-fine-tune-llama3-on-aws-sagemaker-training-cost-aws-spot-instances-savings-lora-fine-tuning-tutorial-custom-ai-model-cheap-aws-gpu-cost-optimization-train-llm-on-budget