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| arm | tokenizer | history | ctx tokens |
|---|---|---|---|
| T0 | fixed-32 (control) | 4,096 | 128 |
| T1 | pyramid, iso-context | 4,096 | 44 |
| T2 | pyramid, iso-token | 16,384 | 128 |
| T3 | adaptive equal-surprise | 16,384 | 128 |
model.pt (final), ckpt_15000.pt
(rank-stability snapshot), config.json, results.json (dev-GIFT CRPS +
long-horizon probe). Dev metrics use a fixed 14-task GIFT-Eval subset — NOT
the full leaderboard; treat numbers as ablation-internal, not comparable to
published GIFT scores. Generated by the v10 experiment notebook.=== transfer curve: GM-CRPS by checkpoint (dev-14, mean over seeds) ===
gm@12500 gm@25000 gm@37500 gm@50000 gm@62500 gm@75000 gm@87500 gm@final gm_final_std long_season params_m perp probe_amp n
arm
Q0_n3_nat100k 0.2333 0.1937 0.1953 0.1961 0.1892 0.1948 0.1850 0.1854 NaN 0.2503 3.878 648.0925 0.231 1
Q1_n3_tpfnfull100k 0.2091 0.2170 0.2040 0.2374 0.2424 0.2183 0.2124 0.2103 NaN 0.2681 3.878 408.1310 0.382 1
--- tripwire checks ---
Q0_n3_nat100k vs Q1_n3_tpfnfull100k: final gap=0.0249 -> sigma unknown (single seed)
Q0_n3_nat100k: TRANSFER INVERSION — best at ckpt #7 (0.1850) vs final (0.1854); synthetic overfit persists
Q1_n3_tpfnfull100k: TRANSFER INVERSION — best at ckpt #3 (0.2040) vs final (0.2103); synthetic overfit persists