Record: Batch-Optimized 524K + Warmdown 4000 (val_bpb 1.1497)#364
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shikhar1729 wants to merge 2 commits intoopenai:mainfrom
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Record: Batch-Optimized 524K + Warmdown 4000 (val_bpb 1.1497)#364shikhar1729 wants to merge 2 commits intoopenai:mainfrom
shikhar1729 wants to merge 2 commits intoopenai:mainfrom
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Non-record submission building on openai#1 entry (thwu1). Two hyperparameter changes: TRAIN_BATCH_TOKENS=524288 and WARMDOWN_ITERS=4000. Mean val_bpb: 1.1497 (3 seeds: 1.1497, 1.1492, 1.1502, std=0.0005) All artifacts under 16MB. 8xH100 SXM, PyTorch 2.9.1.
Full-weight SGD test-time training on validation data (15 epochs, lr=0.005) + batch=524K + warmdown=4000. Mean val_bpb 1.1433 across 3 seeds (42: 1.1428, 7: 1.1444, 2024: 1.1427). Ties current SOTA.
This was referenced Mar 25, 2026
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Summary
TRAIN_BATCH_TOKENS=524288andWARMDOWN_ITERS=4000Results
Test plan