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Hendrik Strobelt

Senior Research Scientist at IBM Research and MIT-IBM lab explainability lead; co-creator of GLTR

  • Senior Research Scientist; Explainability Lead, MIT-IBM Watson AI Lab, IBM Research1

Hendrik Strobelt is a Senior Research Scientist at IBM Research and the Explainability Lead at the MIT-IBM Watson AI Lab, working on visualization for and human collaboration with AI models. Strobelt joined IBM in 2017 after postdoctoral positions at Harvard SEAS and NYU Tandon. With Sebastian Gehrmann and Alexander M. Rush, Strobelt created GLTR (Giant Language Model Test Room), an Apache-2.0 open-source tool that helps people judge whether a text was generated by a language model, built as a collaboration of the MIT-IBM Watson AI Lab and HarvardNLP. Strobelt also co-authored LSTMVis, a tool for visual analysis of hidden-state dynamics in recurrent neural networks.1234

Work

  • GLTR (Giant Language Model Test Room) (external site: github.com)Open-source code

    Co-author of "GLTR: Statistical Detection and Visualization of Generated Text" (2019); the Apache-2.0 repository describes GLTR as a project by Hendrik Strobelt, Sebastian Gehrmann, and Alexander M. Rush, built as a collaboration of the MIT-IBM Watson AI Lab and HarvardNLP.23

  • LSTMVis (external site: arxiv.org)Published research

    First author of "LSTMVis: A Tool for Visual Analysis of Hidden State Dynamics in Recurrent Neural Networks" (2016), with Sebastian Gehrmann, Hanspeter Pfister, and Alexander M. Rush.4

Other documented roles

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

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Sources · reviewed Oct 13, 2026

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