ryansubq/

ruler-12m-niah-external

50 × single_needle_uuid samples at ~12 M tokens per sample. One of four length variants (1 M / 2 M / 6 M / 12 M) prepared for the external long-context retrieval handoff.

field value

samples 50

tasks {single_needle_uuid: 50}

target tokens 12,000,000

seed 1344

negative_rate 0.0

eval/heldout/data.jsonl is the chat-templated form, ready for model.forward(); eval/heldout/raw.jsonl is the pre-template form… See the full description on the dataset page: https://huggingface.co/datasets/ryansubq/ruler-12m-niah-external.