Dataset · Hugging Face

lefft/excerpt-summary-longctx

Name: excerpt-summary-longctx
Creator: lefft
License: cc-by-4.0
Keywords: task_categories:summarization, language:en, license:cc-by-4.0, size_categories:n<1K, format:json, modality:text, library:datasets, library:pandas, library:polars, library:mlcroissant, region:us, long-context, summarization, synthetic, books

Excerpt Summary (Long-Context) Book-excerpt summarization at seven context lengths (2K – 256K tokens), built for long-context supervised fine-tuning and context-length stress-testing. Each example asks a model to summarize a passage within a target word count; the reference summary was generated by an LLM (see Provenance). Usage from datasets import load_dataset # config name = context length: "2k", "8k", "16k", "32k", "64k", "128k", "256k" ds =… See the full description on the dataset page: https://huggingface.co/datasets/lefft/excerpt-summary-longctx.

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Author / organization	lefft
License (as declared)	cc-by-4.0
Downloads	141 (as reported by Hugging Face)
Likes	0
Created	30 June 2026
Last updated at source	7 July 2026

long-contextsummarizationsyntheticbooksproject-gutenbergdistillation

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