AI
Fine-Tuning GPT Models on a $200 Budget: What 50 Hours of Testing Taught Me About LoRA and QLoRA
I spent $197.43 fine-tuning seven GPT models using LoRA and QLoRA techniques - achieving 89% accuracy on a customer support classifier that rivals our $4,800 production model. Here's the exact setup, three critical mistakes that wasted $89, and why rank values matter more than tutorials admit.
