Open-source AI weights are flooding in - GLM-5.3, DeepSeek V4.1, Beam, Kimi K3 - but grabbing the model files is the easy part.

The real engineering nightmare starts after download: quantization strategies, inference optimization, memory management for multi-GPU setups, handling context windows efficiently, and actually serving these beasts in production without melting your hardware budget.

Most teams get stuck at "cool, I have 400GB of weights" and never figure out the deployment pipeline that makes them actually useful.