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Leo Gao

First author of The Pile and first-listed author of EleutherAI's LM Evaluation Harness

Leo Gao is first author of The Pile, an 825 GiB English text corpus for training language models that was published with an EleutherAI affiliation in 2020. Gao is the first-listed author in the citation entry for EleutherAI's LM Evaluation Harness, an open framework for few-shot evaluation of language models. Gao also co-authored the GPT-NeoX-20B paper, which credits Gao with work on evaluations, the tokenizer, and the section on alignment implications.1234

Work

Other documented roles

Roles the sources document but that are not confirmed as current.

  • Lead author of The Pile (2020), published with an EleutherAI affiliation, EleutherAI2

This profile covers public professional work only, from the sources below. It is not an endorsement or a ranking. To correct or remove it, use the correction form.

Sources · reviewed Oct 13, 2026

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