E9-4k

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e9_slp1_uni4k

d20m (23M parameters) on E8 screening slice, trained on RTX 3060 12GB (Home GPU). Started 12 Sep 2026, ended 12 Sep 2026.

Hypothesis

At a fixed total size, a smaller 4k vocabulary buys extra depth and wins.

What we learned

No: pooled 0.7497 vs 0.7466 for 8k. The smaller table does not pay off.

Scores

Bits per byte, lower is better; change against the parent run, E8-slp1-uni.

ex-Gītā (headline)
0.7581
bits per byte
+0.6%
ex-Gītā, clean_v1
—
bits per byte
Pooled, all five sets
0.7497
bits per byte
+0.6%
Validation split
0.6818
bits per byte
+0.0%
Bits per byte on each test set
Test setE9-4kE8-slp1-uni (parent)Change
DCS gold (classical)0.72380.7161+1.1%
Bhagavad-gītā (memorisation)0.52890.516+2.5%
Out of domain0.75730.7544+0.4%
Prose0.73350.726+1.0%
Vedic (Ṛgveda)1.27281.2654+0.6%

Curves

Training loss

Cross-entropy per token, by step. The first few percent of the run, far higher, run off the top; hover or the table has every value.

Held-out bits per byte

The validation split, evaluated during training, by step. Lower is better.

Throughput

Tokens per second, by step.

Model

Preset
d20m
Parameters
22,975,872
Outside embeddings
21,243,264
Layers · heads · width
12 · 6 · 384
Tokenizer
SLP1 unigram 4k

AdamW, learned positions, GELU, tied head

Data

Slice
E8 screening slice
Words
—
Training tokens
727,161,977
Passes
0.59 passes
Tokens seen
429,883,392

Compute

GPU
RTX 3060 12GB
Where
Home GPU
Steps
8,746 / 8,746
GPU hours
1.07
Cost
—
Spot restarts
—

Lineage

homed20m