The Model Zoo: Why We Have 100,000 Variants of the Same Architecture

You search for "Llama 3" on Hugging Face. You find thousands of variants. Fine-tuned for coding. Fine-tuned for medical diagnosis. Fine-tuned for creative writing. Fine-tuned for customer service. Fine-tuned for sarcasm. They are all based on the same architecture. They are all slightly different. They are all slightly better at one specific thing. This is the model zoo. A vast collection of fine-tuned models. Each one a specialized variant of a base model. This is a remarkable achievement. It…