Brent Mittelstadt
Brent Mittelstadt is a data ethicist whose research links AI ethics with law and technology policy. He joined the Oxford Internet Institute as a Research Associate in 2014 and published work on algorithm ethics and counterfactual explanations for automated decisions. In 2019, he argued that AI development lacked common aims, professional norms, practical methods and accountability mechanisms; he received O2RB Excellence in Impact Awards for his explanation and fairness work in 2018 and 2021. As of October 2026, he is Professor of Data Ethics and Policy at Oxford, coordinates its Governance of Emerging Technologies programme across ethics, law and emerging technology, and leads an innovation governance project at the Weizenbaum Institute.
- Now at
- University of Oxford and Freie Universität Berlin
- Works
- 100
- Citations
- 13,660
- h-index
- 33
Publication numbers from OpenAlex, as of 15 October 2026.
Timeline
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October 2014–February 2017
Research associate at Oxford
From October 2014 to February 2017, he works as a Research Associate at the Oxford Internet Institute.
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2016
Mapping algorithm ethics
With Patrick Allo, Mariarosaria Taddeo, Sandra Wachter and Luciano Floridi, he publishes “The ethics of algorithms: Mapping the debate” in 2016.
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2018
Explaining automated decisions
In 2018, he publishes “Counterfactual Explanations Without Opening the Black Box: Automated Decisions and the GDPR” with Sandra Wachter and Chris Russell. Its counterfactual explanations identify the smallest change that can produce a desired outcome. He receives an O2RB Excellence in Impact Award in 2018 for his AI explanation and fairness work.
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2019
Ethical AI principles
In 2019, he argues that AI development lacks common aims, professional norms, practical methods and accountability mechanisms, which limits the effect of high-level ethics principles.
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2021
A second impact award
In 2021, he receives an O2RB Excellence in Impact Award for work on AI explanations, counterfactual explanations, and fairness and bias under non-discrimination law.
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2022–2025
Professor and research director
At Oxford, he becomes Associate Professor in June 2022 and Professor of Data Ethics and Policy in August 2024. He serves as Director of Research from April 2022 to April 2025.
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2025–2026
A handbook and policy proposal
He co-edits the Oxford Handbook on the Foundations and Regulation of Generative AI, published in 2025. In June 2026, he coauthors a proposal that asks policymakers to require measurable public-happiness benefits from companies that receive AI subsidies.
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As of October 2026
AI governance roles
As of October 2026, he is Professor of Data Ethics and Policy at Oxford and coordinates its Governance of Emerging Technologies programme across ethics, law and emerging information technologies. At the Weizenbaum Institute, he is a co-principal investigator and leads its Ethics and Governance of Innovation project.
Sources and credits
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- Professor Brent Mittelstadt
- Counterfactual Explanations without Opening the Black Box: Automated Decisions and the GDPR
- Applying philosophy to artificial intelligence
- Principles alone cannot guarantee ethical AI
- Prof. Brent Mittelstadt
- Rethinking EU AI policy: why public subsidies for AI should deliver real wellbeing
- Governance of Emerging Technologies Group (GET)