C4 Evaluation Dataset
A multilingual subset of allenai/c4 for measuring information-theoretic properties (perplexity, KL divergence) of LLMs.
Dataset
- File:
c4_evaluation.parquet - Total samples: 2,994
- Total tokens: 2,007,152 (tokenized with
Qwen/Qwen3.5-35B-A3B) - Columns:
text,language,source
Language Composition
| Language | Code | Family | Samples | Tokens | % of tokens |
|---|---|---|---|---|---|
| English | en |
Germanic | 1,244 | 695,908 | 34.7% |
| Chinese | zh |
Sino-Tibetan | 316 | 245,202 | 12.2% |
| Japanese | ja |
Japonic | 183 | 163,306 | 8.1% |
| Spanish | es |
Romance | 236 | 160,108 | 8.0% |
| French | fr |
Romance | 141 | 102,462 | 5.1% |
| German | de |
Germanic | 143 | 101,514 | 5.1% |
| Korean | ko |
Koreanic | 114 | 101,298 | 5.0% |
| Russian | ru |
Slavic | 152 | 99,622 | 5.0% |
| Arabic | ar |
Semitic | 141 | 99,938 | 5.0% |
| Portuguese | pt |
Romance | 128 | 80,766 | 4.0% |
| Hindi | hi |
Indo-Aryan | 95 | 78,244 | 3.9% |
| Tamil | ta |
Dravidian | 101 | 78,784 | 3.9% |