Record: 11L XSA-all + 7-gram cache (mean val_bpb=1.0465)#758
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hypery11 wants to merge 1 commit intoopenai:mainfrom
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Record: 11L XSA-all + 7-gram cache (mean val_bpb=1.0465)#758hypery11 wants to merge 1 commit intoopenai:mainfrom
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Seeds: 1.0467 / 1.0470 / 1.0457 (std 0.0007). 11L with XSA-all, LeakyReLU^2, VR, GA, GPTQ-lite int6. 13.99MB artifact. Train 600s, eval 116s.
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…ivot - Log PR openai#771 CLOSED (TTT rules violation: adapt-then-score same tokens) - Update competition strategy: pivot from AdamW TTT to n-gram eval cache - Document legal TTT definition (backward-looking only, already-graded chunks) - Track new open PRs: openai#933 (0.0804), openai#758 (1.0465), openai#1028 (0.9984 unstable) - Add Session 4 lessons learned (lessons 17-20) - Update abandoned approaches and key reference PRs in CLAUDE.md https://claude.ai/code/session_0173mhLdyzis2j7NKyvDQ8ST
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Results
Method
11-layer transformer with XSA-all (Exclusive Self-Attention on all layers), LeakyReLU(0.5)^2, Value Residual, Gated Attention, BigramHash(10240), SmearGate. GPTQ-lite int6 + zstd-22. EMA(0.997) + Tight SWA + Late QAT.
7-gram backward-looking eval cache (alpha=0.40, 4M buckets). Score-first, deterministic, no TTT.
Architecture builds on community techniques from PRs #609, #549.