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README.md

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----
-license: mit
----
+# Auralis-Coder Training Dataset
+
+Packed token dataset for training the **Auralis-Coder** 1.5B parameter language model.
+
+## Dataset Overview
+
+| Property | Value |
+|---|---|
+| Total tokens | 176,544,387 |
+| Tokenizer | Qwen2.5 (Qwen/Qwen2.5-1.5B) |
+| Format | uint32 token IDs (packed) |
+| Shards | 16 |
+| Shard size | ~10M tokens each |
+| Documents | 235,219 |
+| Duplicates removed | 19 |
+
+## Source Data
+
+The dataset combines high-quality sources targeting programming and artificial intelligence:
+
+- **FineWeb-Edu** — Educational web content
+- **StarCoder** — Programming/code data
+- **FineWeb** — General high-quality web content
+
+## Tokenization & Packing
+
+- Tokenized with Qwen2.5 tokenizer (vocab: 151,936)
+- Packed into fixed-size shards (10M tokens each)
+- Sequence length: 4,096 tokens during training
+- Maximum context: 131,072 tokens
+
+## Usage
+
+```python
+import numpy as np
+
+# Load a shard
+tokens = np.fromfile("tokens-000000.bin", dtype=np.uint32)
+
+# Reshape into sequences (e.g., 4096 tokens per sequence)
+seq_len = 4096
+sequences = tokens.reshape(-1, seq_len)
+```
+
+## Files
+
+- `tokens-000000.bin` through `tokens-000015.bin` — Packed token shards (uint32)
+- `packed_manifest.json` — Dataset statistics and metadata
+- `dataset.json` — Additional metadata
+
+## License
+
+Refer to the source dataset licenses (FineWeb, StarCoder, FineWeb-Edu) and the Auralis project distribution.

dataset.json

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+{
+  "dataset_name": "Auralis_packed_dataset",
+  "token_format": "uint32",
+  "tokenizer": "Qwen/Qwen2.5-1.5B",
+  "existing_tokens_before_run": 176544387,
+  "new_tokens_this_run": 4141,
+  "total_tokens_after_run": 176548528,
+  "documents_tokenized": 1,
+  "duplicates_skipped": 0,
+  "records_skipped": 0,
+  "existing_shards_preserved": true,
+  "new_shards_start": 16
+}

packed_manifest.json

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+{
+  "format": "uint32 token IDs",
+  "tokenizer": "Qwen/Qwen2.5-1.5B",
+  "original_tokens": 147256664,
+  "new_tokens": 29287723,
+  "total_tokens": 176544387,
+  "requested_new_tokens": 70000000,
+  "documents_used": 235201,
+  "documents_skipped": 0,
+  "duplicates_removed": 19,
+  "approx_new_source_characters": 123902601,
+  "new_shard_size_tokens": 10000000,
+  "original_shards_preserved": true,
+  "storage": "packed",
+  "note": "Existing packed shards were preserved. New data was appended as subsequent token shards."
+}

tokens-000000.bin

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