record: val_bpb=1.1622, NorMuon + int6 STE + SWA + sliding window#89
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record: val_bpb=1.1622, NorMuon + int6 STE + SWA + sliding window#89vmfunc wants to merge 1 commit intoopenai:mainfrom
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mean val_bpb=1.1622 across 3 seeds (1.1624, 1.1623, 1.1618). int6 fake quant w/ STE, fp16 embed passthrough, MLP 3x, NorMuon, stochastic weight averaging during warmdown, sliding window stride=64. 15.5MB artifact, 8xH100, 600s, ~12k steps.
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NorMuon adds per-row second-moment tracking after Newton-Schulz orthogonalization, then normalizes and rescales to preserve total norm. Based on arXiv:2510.05491 and PR openai#89. Expected -0.005 to -0.010 BPB improvement. Drop-in replacement (same class name). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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mean val_bpb=1.1622 across 3 seeds on 8xH100 (1.1624, 1.1623, 1.1618). stacks six orthogonal improvements:
artifact: 15.5MB (code 54KB + int6+zstd model 15.4MB). ~50ms/step, 600s wall clock