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Dirk Groeneveld

Dirk Groeneveld is an AI engineer whose work spans open language models, multimodal AI, and tools for tracing model outputs to training data. He joined the Allen Institute for Artificial Intelligence in 2014 after Amazon product-description work and a startup. At AI2, he was technical lead for the AllenNLP Platform team in 2022 and coauthored OLMo, Molmo, OLMoTrace, Olmo 3, and Olmo Hybrid. He is part of Microsoft’s Superintelligence team, whose work includes AI model post-training.

Now at
Microsoft
Works
35

Publication numbers from OpenAlex, as of 19 October 2026. Citations and h-index are hidden because this OpenAlex record may be incomplete or mix in other authors.

Timeline

  1. 2014

    Joining the Allen Institute

    After Amazon work on product descriptions and a startup experiment, he joins the Allen Institute in 2014.

  2. September 2022

    Leading the AllenNLP Platform

    At a September 2022 seminar, he describes himself as technical lead for the AllenNLP Platform team. The team builds general tools for AI2 researchers and works with them on projects.

  3. 2024

    OLMo and open training data

    He coauthors OLMo in 2024, a language model released with open training data plus training and evaluation code.

  4. 2024

    Molmo and PixMo

    He coauthors Molmo and PixMo in 2024. Molmo is an open vision-language model family; PixMo includes highly detailed image captions for pretraining.

  5. 2025

    OLMoTrace and Olmo 3

    In 2025, he coauthors OLMoTrace, a system that traces language-model output to matching documents in training text. In December 2025, he coauthors Olmo 3, a family of fully open language models at 7B and 32B parameter scales.

  6. April 2026

    Olmo Hybrid

    In April 2026, he coauthors Olmo Hybrid, a 7B-parameter model with sliding-window layers replaced by Gated DeltaNet layers.

  7. As of October 2026

    Microsoft’s Superintelligence team

    By May 2026, he is part of Microsoft’s Superintelligence team. The group works on AI model post-training, with applications in health care, energy, and AI companions.

Career

  1. Since 2026Microsoft
  2. From 2014Allen Institute for AI (Ai2)Technical lead

Sources and credits

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  1. AllenNLP grows eyes: Combining natural language with vision nlpsummit.org. Checked 19 October 2026.
  2. Keeping Research Organized with Tango isi.edu. Checked 19 October 2026.
  3. OLMo: Accelerating the Science of Language Models arxiv.org. Checked 19 October 2026.
  4. Molmo and PixMo: Open Weights and Open Data for State-of-the-Art Vision-Language Models arxiv.org. Checked 19 October 2026.
  5. Dirk Groeneveld - ACL Anthology aclanthology.org. Checked 19 October 2026.
  6. Olmo 3 arxiv.org. Checked 19 October 2026.
  7. Olmo Hybrid: From Theory to Practice and Back arxiv.org. Checked 19 October 2026.
  8. Microsoft adds at least 10 former Ai2 researchers to its Superintelligence team completeaitraining.com. Checked 19 October 2026.