auto ckpt ckpt_150k.pt

auto ckpt ckpt_30k.pt

auto ckpt ckpt_90k.pt

auto ckpt ckpt_120k.pt

auto ckpt ckpt_60k.pt

auto ckpt ckpt_90k.pt

auto ckpt ckpt_150k.pt

auto ckpt ckpt_60k.pt

auto ckpt ckpt_30k.pt

auto ckpt ckpt_120k.pt

READMEs for Z4 (FineWeb-Edu score >= 4) and H4 (deep-narrow 22x320)

auto ckpt ckpt_30k.pt

auto ckpt ckpt_90k.pt

auto ckpt ckpt_60k.pt

README for Z1 arm Z seed 1338 (seed-noise control)

README for v1_128m (128M scale reference, final result at step 400k)

auto ckpt ckpt_30k.pt

auto ckpt ckpt_400k.pt

README for Z1 (32M from scratch): arm Z FineWeb-Edu, arm C ARC-MIX

S12 READMEs: arms A and B2 stopped after segment 2

auto ckpt ckpt_460k.pt

auto ckpt ckpt_460k.pt

auto ckpt ckpt_444k.pt

auto ckpt ckpt_444k.pt

auto ckpt ckpt_440k.pt

README for decay probes of building pair 1 at 440k

auto ckpt ckpt_360k.pt

auto ckpt ckpt_440k.pt

S12 READMEs: arm B2 (forked from A at 420k), segment-2 selection axis, arm B stopped after segment 1

auto ckpt ckpt_424k.pt

Probe READMEs: decay is 1-sqrt (as in the trainer's WSD), not linear

auto ckpt ckpt_424k.pt

auto ckpt ckpt_424k.pt

README for decay-to-zero probe (H3) of s12A at 420k

README for decay probes of building pair 1 at 420k

auto ckpt ckpt_420k.pt

auto ckpt ckpt_420k.pt

README for building pair 1 (s12A arcmix pool, s12B arcmix+edu): why they exist, setup

auto ckpt ckpt_320k.pt

README for round-4 arms (r4B seed control, r4K anchor): why they exist, results 340-400k

auto ckpt ckpt_400k.pt

auto ckpt ckpt_400k.pt

auto ckpt ckpt_380k.pt

auto ckpt ckpt_380k.pt

auto ckpt ckpt_280k.pt

auto ckpt ckpt_360k.pt

Model card update (BLiMP recomputed after harness fix; data-attribution experiments) + READMEs for 4 experiment folders

auto ckpt ckpt_360k.pt

auto ckpt ckpt_340k.pt

auto ckpt ckpt_340k.pt