Record: 11L + Partial XSA + TTT + BatchOpt (val_bpb=1.1354)#290
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ibarrajo wants to merge 1 commit intoopenai:mainfrom
Open
Record: 11L + Partial XSA + TTT + BatchOpt (val_bpb=1.1354)#290ibarrajo wants to merge 1 commit intoopenai:mainfrom
ibarrajo wants to merge 1 commit intoopenai:mainfrom
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Stacks Partial XSA (last 3 layers), TTT (3-epoch SGD), batch=524K, and RoPE50K on the PR openai#198 base. 8,945 steps on 8xH100 in 600s. 15.85MB artifact (int6+zstd-22). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Approach
Four improvements stacked on the PR #198 base:
Key Metrics
Note
Uses PyTorch SDPA fallback (FA3 not in RunPod image — see #280). With FA3, expect ~600 more training steps and slightly better BPB.
Test plan
🤖 Generated with Claude Code