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Support: independent PR2014 prefix-2400 reproduction, seed 42 val_bpb 1.05804#2078

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Support: independent PR2014 prefix-2400 reproduction, seed 42 val_bpb 1.05804#2078
hi-aduek wants to merge 1 commit into
openai:mainfrom
hi-aduek:codex/pr2014-prefix2400-support

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@hi-aduek hi-aduek commented May 1, 2026

Summary

Independent seed-42 reproduction/support package for PR #2014.

This uses the PR #2014 SP8192 CaseOps progressive-3k stack, then reruns the saved quantized artifact with PHASED_TTT_PREFIX_DOCS=2400 to keep the validation-data TTT pass under the 600s eval cap on this 8xH100 SXM run.

Result

  • seed: 42
  • post-TTT val_bpb: 1.05803761
  • val_loss: 2.31538446
  • train wallclock: 596.137s
  • eval wallclock: 591.446s
  • total artifact bytes: 15,989,499
  • full validation coverage: val_tokens == target_tokens == 47,853,343

This is intended as support evidence for PR #2014, not as a separate three-seed architecture claim.

Files

Adds one record folder:

records/track_10min_16mb/2026-04-30_SP8192_CaseOps_Progressive3k_Prefix2400_Repro_1.0580

Includes README, submission.json, train/eval logs, train_gpt.py, CaseOps prep files, requirements, and tokenizer.

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