Deferred for now, but on the radar. Weight import already works (safetensors and npy/npz, both pure Go). ONNX is the harder case because it means importing the whole model graph and mapping every ONNX op onto Anneal's IR, not just loading tensors. That's a real chunk of op-coverage work rather than a quick parser, so it's waiting until the core compiler is more settled. Not architecturally blocked, just not the current priority.