Researcher

Qinyu Chen

Qinyu Chen is a DeepSeek-AI researcher whose work spans mixture-of-experts language models, reasoning, conditional memory, and inference. In 2024, they coauthored DeepSeek-V2 and DeepSeek-V3; in 2025, they coauthored DeepSeek-R1 and DeepSeek-V3.2. Their 2026 work includes Engram’s conditional memory, DSpark’s speculative decoding, and DeepSeek-V4.1-Flash’s long-context model design. As of October 2026, they are part of DeepSeek-AI’s Research & Engineering team.

Now at
DeepSeek
Works
13
Citations
1,701
h-index
5

Publication numbers from OpenAlex, as of 22 October 2026.

Timeline

  1. May 2024

    DeepSeek-V2 technical report

    In May 2024, they coauthor DeepSeek-V2, a mixture-of-experts language model with 236B total parameters and 21B activated for each token.

  2. December 2024

    DeepSeek-V3 technical report

    The December 2024 DeepSeek-V3 technical report describes a mixture-of-experts model with 671B total parameters and 37B activated for each token; Chen is a coauthor.

  3. September 2025

    DeepSeek-R1 in Nature

    In September 2025, they coauthor the Nature paper on DeepSeek-R1, which shows that pure reinforcement learning can encourage reasoning without human-labelled reasoning trajectories.

  4. December 2025

    DeepSeek-V3.2 technical report

    DeepSeek-V3.2 combines efficient attention, scalable reinforcement learning, and a pipeline for agent-training data; Chen coauthors the report in December 2025.

  5. July 2026

    Conditional memory with Engram

    In July 2026, they coauthor an ACL paper that introduces Engram, a conditional-memory module using local n-gram lookup. The paper reports gains on knowledge and reasoning benchmarks.

  6. July 2026

    DSpark speculative decoding

    They coauthor DSpark in July 2026, a speculative-decoding framework that combines parallel generation with adaptive, load-aware verification. In DeepSeek-V4 serving, it accelerates per-user generation by 60–85% at matched throughput.

  7. September 2026

    DeepSeek-V4.1-Flash model

    In September 2026, they coauthor DeepSeek-V4.1-Flash, a multimodal mixture-of-experts model with 552B backbone parameters and contexts up to one million tokens. Its design reduces the global key-value cache footprint to about one quarter of DeepSeek-V4-Flash.

  8. As of October 2026

    Research and engineering at DeepSeek-AI

    As of October 2026, they are part of DeepSeek-AI’s Research & Engineering team.

Most-cited works

  1. DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning2025 · Nature · 1,118 citationsWith Bingxuan Wang, Chengqi Deng, Damai Dai, Daya Guo, Erhang Li and Fangyun Lin
  2. Can Open Large Language Models Catch Vulnerabilities?2025 · 539 citationsWith Bingxuan Wang, Chengqi Deng, Damai Dai, Erhang Li, Fangyun Lin and Haocheng Wang
  3. Robust pavement crack segmentation network based on transformer and dual-branch decoder2024 · Construction and Building Materials · 19 citations
  4. Managing the value Co-creation of peer service providers in the sharing economy: The perspective of customer incivility2023 · Heliyon · 13 citations
  5. Conflict with children, psychological depression, and problematic internet use among Chinese older adults: The moderating effect of sociability and living situation2023 · Digital Health · 11 citations

Sources and credits

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  1. DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model arxiv.org. Checked 21 October 2026.
  2. DeepSeek-V3 Technical Report arxiv.org. Checked 21 October 2026.
  3. DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning nature.com. Checked 21 October 2026.
  4. DeepSeek-V3.2: Pushing the Frontier of Open Large Language Models arxiv.org. Checked 21 October 2026.
  5. Conditional Memory via Scalable Lookup: A New Axis of Sparsity for Large Language Models aclanthology.org. Checked 21 October 2026.
  6. Conditional Memory via Scalable Lookup: A New Axis of Sparsity for Large Language Models arxiv.org. Checked 21 October 2026.
  7. DSpark: Confidence-Scheduled Speculative Decoding with Semi-Autoregressive Generation arxiv.org. Checked 21 October 2026.
  8. DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression arxiv.org. Checked 21 October 2026.