---
language:
- pl
- en
license: apache-2.0
library_name: pytorch
pipeline_tag: text-generation
tags:
- polish
- causal-lm
- from-scratch
datasets:
- SlayerLab/slayer-pl-8x3b
---

# Slayer1B 1.05

Decoder-only language model, 1 073 912 851 parameters, Polish-dominant. **Slayer1B 1.05 is Slayer1B 1.04 trained
further**: training resumed from the final checkpoint of 1.04 (step 10010, constant learning rate 6e-4) and continued
to step 12870 (13 495 173 120 tokens in total, ≈ 12.6 tokens per parameter).

Like 1.02–1.04, **1.05 is a constant-learning-rate state**: no learning-rate decay was applied. Pre-training continued
from this checkpoint to the end of the corpus pass (release 1.06, step 13848).

- Previous versions: [SlayerLab/Slayer1B-1.04](https://huggingface.co/SlayerLab/Slayer1B-1.04),
  [SlayerLab/Slayer1B-1.03](https://huggingface.co/SlayerLab/Slayer1B-1.03),
  [SlayerLab/Slayer1B-1.02](https://huggingface.co/SlayerLab/Slayer1B-1.02),
  [SlayerLab/Slayer1B-1.01](https://huggingface.co/SlayerLab/Slayer1B-1.01),
  [SlayerLab/Slayer1B-1.00](https://huggingface.co/SlayerLab/Slayer1B-1.00)
- Training checkpoints (with optimizer state): [SlayerLab/Slayer1B-1.05-checkpoints](https://huggingface.co/SlayerLab/Slayer1B-1.05-checkpoints)
  (steps 10050–12870); the same files are also in [SlayerLab/Slayer1B-1.04-checkpoints](https://huggingface.co/SlayerLab/Slayer1B-1.04-checkpoints)
  (whole continuation 7200–13848)
- Training curve and training-time evaluation: https://track.fabryka.ai/run/f056bb5c-f1da-56d5-9776-cc33063f10a5

## Training

- Same model, tokenizer, corpus order and global batch as 1.04: 256 sequences × 4096 tokens = 1 048 576 tokens per
  step, constant learning rate 6e-4.
- Steps 10010 → 12870 (2860 steps, 2 998 927 360 tokens) on 8× NVIDIA L40S. The run moved from 4× to 8× L40S at the
  1.04 checkpoint; the first update on the new hardware reproduced the global batch of the 4× run (same 256 × 4096
  samples), so 1.05 continues the same training trajectory rather than starting a new run.
- Data: [SlayerLab/slayer-pl-8x3b](https://huggingface.co/datasets/SlayerLab/slayer-pl-8x3b), continuing the single
  pass over the corpus started in 1.00.

## Training-time evaluation

Measured during training with the run's automatic evaluator (one instrument, NVIDIA A100, zero-shot). These are
**not** the lm-evaluation-harness benchmark used in the Results table of 1.00–1.03 and are not directly comparable
with it.

| metric | 1.04 (10010) | **1.05 (12870)** |
|---|---:|---:|
| BLiMP (EN), accuracy % | 74.17 | **75.53** |
| ARC-Easy (EN), accuracy % | 50.59 | **52.19** |
| WikiText-2, byte perplexity ↓ | 2.3078 | **2.2816** |
| WikiText-2, token perplexity ↓ | 31.29 | **29.86** |
| MultiBLiMP (PL), accuracy % | 98.87 | **98.47** |
| ARC-Easy (PL, eu20), accuracy % | 44.02 | **45.20** |

Single checkpoints differ: e.g. step 13000 scored ARC-Easy (EN) 51.56 and MultiBLiMP (PL) 98.81 (all points in the
training curve above); no cause is attributed.

The lm-evaluation-harness benchmark (HellaSwag, PIQA, LAMBADA, ARC-Challenge, BoolQ, MMLU) has not been run on 1.05.
The benchmark caveat of the 1.03 card (n-gram overlap of the English shared part with BoolQ, MMLU and ARC test items)
applies to this release as well: steps up to 7192 (1.00–1.03 and the first 42 steps of the continuation) used the
unfiltered data. From step 7193 (pack-04) on, the 5133 documents with n-gram overlap with BoolQ / MMLU / ARC test
items are excluded (list sha256 `84caed78733c25a7d7bbe5f0c9c1ef1d2bb249793ef559f1b73f4b390995b445`).

## Files

`model.safetensors` (weights), `config.json`, `tokenizer.json`, `load_slayer.py` (loader), `train_gpt_ref_r23.py` and
`SHA256SUMS`. The `config.json` records the sha256 of the source checkpoint `ckpt_12870.pt`
(`435082ff36becfbb96803622139f38d2afa0ba1a9d2fc284bad96f5a8edc1181`, also published in the checkpoints repository).

`train_gpt_ref_r23.py` is the model definition (`GPT` class) imported by `load_slayer.py`; `trainer_sha256` in
`config.json` refers to this file. The continuation from 1.03 was trained with `train_gpt_ref` r24.1
(sha256 `881cb055c38b73a24154d96e2359072e9c526f68875c41e0c1b4ed1c4b9eb62c`, steps 7150–10010) and r24.2
(sha256 `46f83b51fcec18ffc3273d80fb9eab29e182c52d8667800dab27b80f7ff18afc`, steps 10010–12870); the architecture is unchanged.