# Broken on Arrival: Non-Functional Quantized LLM Artifacts in Public Model Registries and How to Catch Them > Source: > Published: 2026-10-30 16:00:09+00:00 Developers download quantized large language models (LLMs) from public registries to run them locally. None of the registries we examined documented functional testing of their files. We tested all 305 eligible code-capable GGUF tags (the llama.cpp format) across 15 model lines in the official Ollam