MetaStack v3: 1.1792 sliding bpb, 10L BigramHash SmearGate OrthoInit SWA#205

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xinpw8 wants to merge 3 commits intoopenai:mainfrom

Commits on Mar 20, 2026

MetaStack v3: 1.1792 sliding bpb, 10L BigramHash SmearGate OrthoInit SWA
xinpw8
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feat: add MetaStack v3 near-SOTA non-record submission
xinpw8
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Commits on Mar 21, 2026

fix: address automated review comments on tooling/infra
xinpw8
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