PeopleofSuperintelligence

Lab leader

Cyprien de Masson d’Autume

Cyprien de Masson d’Autume is an AI researcher and technical leader whose work spans language learning, code generation, and multimodal models. At DeepMind, he was a staff research engineer from 2016 to 2022 and worked on Gopher and AlphaCode. His papers explored episodic memory for lifelong language learning and retrieval in language models. He became Reka’s CTO in 2023, and Reka listed him among the team behind its Flash and Edge announcement in 2024. He is a member of technical staff at Anthropic in London; he joined the company in January 2025.

Now at
Anthropic
Works
19
Citations
2,041
h-index
14

Publication numbers from OpenAlex, as of 19 October 2026.

Timeline

  1. 2016–2022

    Research engineer at DeepMind

    At DeepMind, he works as a staff research engineer from 2016 to 2022 on Gopher and AlphaCode.

  2. 2019

    Episodic memory in lifelong learning

    In 2019, he coauthors Episodic Memory in Lifelong Language Learning with Sebastian Ruder, Lingpeng Kong, and Dani Yogatama; the paper proposes sparse experience replay and local adaptation using an episodic memory.

  3. 2021

    Adaptive semiparametric language models

    His 2021 paper, Adaptive Semiparametric Language Models, combines a transformer with episodic memory and nearest-neighbor retrieval to extend context.

  4. 2022

    AlphaCode for programming contests

    The 2022 paper Competition-level code generation with AlphaCode lists him as a co-author and introduces a system for generating solutions to complex competitive-programming problems.

  5. June 2023

    CTO at Reka

    By June 2023, he serves as Reka’s CTO as the AI research company emerges from stealth.

  6. February 2024

    Reka Flash and Edge

    In February 2024, Reka lists him among the team on its Flash announcement, which presents Flash as a multimodal language model and Edge as its compact variant.

  7. Since 2025

    Anthropic technical staff

    At Anthropic, he is a member of technical staff in London after joining the company in January 2025.

Career

  1. Since 2025AnthropicMember of technical staff
  2. From 2023Reka AICTO
  3. 2016–2022Google DeepMindStaff research engineer

From the biography and OpenAlex affiliations (the years of papers that list the organization), so some years are approximate.

Most-cited works

  1. Competition-level code generation with AlphaCode2022 · Science · 1,033 citationsWith Julian Schrittwieser, Koray Kavukcuoglu, Nando de Freitas, Oriol Vinyals and Pushmeet Kohli
  2. Scaling Language Models: Methods, Analysis & Insights from Training Gopher2021 · 234 citationsWith Angeliki Lazaridou, Demis Hassabis, Diego de las Casas, Geoffrey Irving, George van den Driessche and Iason Gabriel
  3. Learning and Evaluating General Linguistic Intelligence2019 · 147 citationsWith Angeliki Lazaridou, Dani Yogatama and Phil Blunsom
  4. A Mutual Information Maximization Perspective of Language Representation Learning2019 · 111 citationsWith Dani Yogatama
  5. Episodic Memory in Lifelong Language Learning2019 · 95 citationsWith Dani Yogatama and Sebastian Ruder

From OpenAlex, as of 19 October 2026.

  1. The median h-index is 53 at universities and 19 at frontier AI labsIncludes Cyprien de Masson d’Autume. The median h-index is 53 at universities and 19 at frontier AI labs. We compare publishing careers, citations and moves to estimate how universities and frontier labs contribute to AI research.
  2. Of 462 people shaping AI who worked at Google, 190 work there nowIncludes Cyprien de Masson d’Autume. Our estimates of where former Google and Google DeepMind people work now, including moves within Google.
  3. 13 of 79 people shaping AI with a former OpenAI role now work at AnthropicIncludes Anthropic. Our estimates of where OpenAI recruits came from and where people with former OpenAI roles work now.
  4. Nonprofit roles are 2.2 times as common in AI safetyIncludes Anthropic. We estimate where people focused on safety, alignment and evaluation work. Nonprofit roles appear for 26.0% of safety people with known affiliations, compared with 11.6% in other areas.

Colleagues

People named in this biography, and people with dated positions at the same organization in the same years.

Sources and credits

Photo: We have no published photo of Cyprien de Masson d’Autume yet. Send us a free-licensed photo.

  1. Generative AI startup Reka emerges from stealth with $58 million in its pocket the-decoder.com. Checked 19 October 2026.
  2. Episodic Memory in Lifelong Language Learning arxiv.org. Checked 19 October 2026.
  3. Adaptive Semiparametric Language Models arxiv.org. Checked 19 October 2026.
  4. Competition-Level Code Generation with AlphaCode arxiv.org. Checked 19 October 2026.
  5. Reka Flash: Efficient and Capable Multimodal Language Models reka.ai. Checked 19 October 2026.
  6. People are leaving Stripe for "weird" OpenAI rival with big hiring plans efinancialcareers.com. Checked 19 October 2026.