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Jay Alammar

Writer of illustrated machine learning guides and co-author of Hands-On Large Language Models

  • Director and Engineering Fellow, Cohere4
  • Author, Language Models & Co.31

Jay Alammar writes visual explanations of machine learning concepts, including The Illustrated Transformer and The Illustrated BERT, ELMo, and co., first on a technical blog and now on the Substack newsletter Language Models & Co., which covers large language models, their internals, and applications. Jay Alammar co-wrote the illustrated book Hands-On Large Language Models, and the book's site lists Jay as Director and Engineering Fellow at Cohere.1234

Work

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 17, 2026

  1. 1.
  2. 2.
    About – Jay Alammar (external site: jalammar.github.io)

    Jay Alammar · Official page · accessed Oct 17, 2026

  3. 3.
    About - Language Models & Co. (external site: newsletter.languagemodels.co)

    Language Models & Co. · Official page · accessed Oct 17, 2026

  4. 4.
    Hands-On Large Language Models (external site: llm-book.com)

    Jay Alammar and Maarten Grootendorst · Official page · accessed Oct 17, 2026

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