Record candidate: 1.05670 BPB — token-only n-gram tilt + AsymLogit + #2060 levers + NUM_PHASES=1#2130

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TanishGudise wants to merge 37 commits intoopenai:mainfrom

TanishGudise:ngram-tilt-asymlogit

Commits on Apr 20, 2026

Port QUANT_ONLY_CHECKPOINT mode to SP8192 base
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Port mixed-regime GPTQ calibration to SP8192 base (CALIB_SPLIT_BY_MODULE)
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Port per-layer QK-Gain init schedule to SP8192 base (QK_GAIN_INIT_SCHEDULE)
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Add overnight run launch playbook (LAUNCH_COMMANDS.md)
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Sprint status: SP8192 rebase + 3 levers ported, overnight run pending
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Submission-clean: SP8192 + QK-Gain init schedule (compressed)

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Add SUBMISSION_STATUS.md with artifact sizes and submission checklist

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Commits on Apr 21, 2026

Add 3-seed training results (val_bpb mean 1.07060) and summary
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Commits on Apr 25, 2026

Add PR1797+4-lever submission and SP8192 QK-Gain insurance submission

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Commits on Apr 27, 2026

Smoke C validated: 4-lever build works under 16M cap
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Commits on Apr 28, 2026

Optimize run command: LQER rank=6/top_k=5, TTT LoRA rank=128, GPTQ calib=32

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Add --skip-docs, --start-shard-train, --max-docs to prepare_caseops_data.py

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Save dexhunter seed 314 reproduction artifact + logs
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Commits on Apr 29, 2026

Commits on Apr 30, 2026

Add COMPRESSOR=pergroup: role-bucketed lrzip/ZPAQ compression

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Add TTT_GRAD_STEPS_CLEAN=1 for independent per-step gradient zeroing

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Fix lrzip -d: remove unsupported -k flag (lrzip 0.651)

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Add pergroup roundtrip diagnostic scripts

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Port PR #1145 n-gram tilt (v21) onto grad-steps-clean base

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Sprint sweep logs S36-S54: full lever exploration through n-gram tilt breakthrough
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Validation results: 3-seed mean 1.05759 BEATS #1967 (1.05851) by -0.00092
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Commits on May 1, 2026