starbix/oneruler

A preprocessed, HuggingFace-ready version of the OneRuler multilingual long-context benchmark, built on top of RULER.

Each config is named {language}_{context_length} (e.g. en_4096, ko_16384) and contains a single test split.

Tasks

Task	Category	Description
niah_single	Retrieval	Single needle, single key, single query
niah_none	Retrieval	Query key absent — answer is the language-specific word for "none"
niah_multikey	Retrieval	4 needles inserted, 1 queried
niah_multivalue	Retrieval	1 key mapped to 4 values, all must be retrieved
niah_multiquery	Retrieval	1 needle, 2 simultaneous queries
cwe	Aggregation	Common words extraction (freq ratio 20:10)
cwe_easy	Aggregation	Common words extraction (freq ratio 30:3)

Languages

26 languages: cs da de en es fa fi fr hi hu it ja ko nl no pl pt ru sr st sv sw ta uk vi zh

Context lengths

4096 · 8192 · 16384 tokens (tokenized with meta-llama/Meta-Llama-3.1-8B)

Schema

Column	Type	Description
context	string	The long context (book excerpt + inserted needles for NIAH, word list for CWE)
question	string	The question to answer, in the task language
answer_prefix	string	The answer format prefix shown to the model (NIAH only; empty for CWE)
answer	list[string]	Ground-truth answer(s)
task	string	Task name, e.g. niah_single, cwe_easy
language	string	ISO 639-1 language code, e.g. en, ko, zh
max_new_tokens	int	Generation budget (30 for NIAH, 50 for CWE)

Usage

from datasets import load_dataset

# Load English, 4096-token context
ds = load_dataset("starbix/oneruler", name="en_4096", split="test")

# Load Korean, 16384-token context
ds = load_dataset("starbix/oneruler", name="ko_16384", split="test")

Citation

@misc{kim2025rulermeasureallbenchmarking,
      title={One ruler to measure them all: Benchmarking multilingual long-context language models},
      author={Yekyung Kim and Jenna Russell and Marzena Karpinska and Mohit Iyyer},
      year={2025},
      eprint={2503.01996},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2503.01996},
}