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Ben Wang

Also known as kingoflolz

Ben Wang is a researcher at OpenAI, a role he has held since 2023, and an author of several large language model projects. In 2021 he wrote the Mesh Transformer JAX code used to train GPT-J-6B. Co-authored papers include GPT-NeoX-20B, which arXiv lists as submitted in April 2022, and the GPT-4 Technical Report, which arXiv lists as submitted in March 2023. The GPT-4o System Card, which arXiv lists as submitted in October 2024, also names him as a co-author. He studied electrical engineering and management at the University of Pennsylvania, graduating in May 2023.

Now at
OpenAI

Timeline

  1. 2019–2023

    Electrical engineering at Penn

    At the University of Pennsylvania, he studies electrical engineering and management, graduating in May 2023.

  2. 2021

    Code for GPT-J-6B

    In 2021 he writes the Mesh Transformer JAX code used to train GPT-J-6B.

  3. 2022

    Co-authoring GPT-NeoX-20B

    The GPT-NeoX-20B paper on an open-source language model lists him as a co-author, submitted to arXiv in April 2022.

  4. March 2023

    The GPT-4 Technical Report

    The GPT-4 Technical Report, which arXiv lists as submitted in March 2023, names him as a co-author.

  5. Since 2023

    A researcher at OpenAI

    He joins OpenAI as a researcher in 2023.

  6. October 2024

    The GPT-4o System Card

    He co-authors the GPT-4o System Card, which arXiv lists as submitted in October 2024.

Sources and credits

Photo: We have no published photo of Ben Wang yet. Send us a free-licensed photo.

  1. About | Ben Wang’s Blog benwang.dev. Checked 15 October 2026.
  2. Ben Wang | alphaXiv alphaxiv.org. Checked 15 October 2026.
  3. GPT-J-6B: 6B JAX-Based Transformer – Aran Komatsuzaki arankomatsuzaki.wordpress.com. Checked 15 October 2026.
  4. EleutherAI/gpt-j-6b · Hugging Face huggingface.co. Checked 15 October 2026.
  5. [2204.06745] GPT-NeoX-20B: An Open-Source Autoregressive Language Model arxiv.org. Checked 15 October 2026.
  6. [2303.08774] GPT-4 Technical Report arxiv.org. Checked 15 October 2026.
  7. [2410.21276] GPT-4o System Card arxiv.org. Checked 15 October 2026.