Researcher

Yuxiang You

Yuxiang You is a DeepSeek-affiliated researcher whose coauthored work spans open language models, code models, multimodal systems and reinforcement learning. He coauthored DeepSeek LLM in January 2024, DeepSeek-V2 and DeepSeek-Coder-V2 in 2024, and DeepSeek-VL2 with DeepSeek-V3 in December 2024. DeepSeek-R1 reports that pure reinforcement learning can incentivize LLM reasoning, and DeepSeek-V3.2-Speciale achieves gold-medal performance in both the 2025 International Mathematical Olympiad and International Olympiad in Informatics. As of October 2026, he is affiliated with DeepSeek in China; in September 2026, he coauthored DeepSeek-V4.1-Flash research on KV-cache compression.

Now at
DeepSeek

Timeline

  1. January 2024

    DeepSeek LLM

    DeepSeek LLM appears on arXiv in January 2024 with Yuxiang You among its authors. It develops open-source 7B and 67B language models; the 67B model surpasses LLaMA-2 70B on benchmarks in code, mathematics and reasoning.

  2. May 2024

    The DeepSeek-V2 model

    In May 2024, DeepSeek-V2 appears with You among its authors as a Mixture-of-Experts model with 236B total parameters and 21B activated for each token.

  3. June 2024

    The DeepSeek-Coder-V2 model

    In June 2024, DeepSeek-Coder-V2 appears with You among its authors. The code model is further pre-trained from an intermediate DeepSeek-V2 checkpoint on six trillion additional tokens.

  4. December 2024

    DeepSeek-VL2 and V3

    DeepSeek-VL2 appears on arXiv in December 2024 with You among its authors as a series of Mixture-of-Experts vision-language models. The DeepSeek-V3 Technical Report also appears in December 2024 with You among its authors and describes a Mixture-of-Experts model with 671B total parameters and 37B activated per token.

  5. September 2025

    DeepSeek-R1 in Nature

    In September 2025, You coauthors the DeepSeek-R1 paper as part of the DeepSeek-AI Team in Hangzhou, China. It shows that pure reinforcement learning can incentivize LLM reasoning without human-labelled reasoning trajectories.

  6. December 2025

    V3.2-Speciale's contest results

    DeepSeek-V3.2 appears on arXiv in December 2025 with You among its authors. Its high-compute variant, DeepSeek-V3.2-Speciale, achieves gold-medal performance in both the 2025 International Mathematical Olympiad and the International Olympiad in Informatics.

  7. April 2026

    The DeepSeek-V4 preview

    The DeepSeek-V4 preview appears on arXiv in April 2026 with You among its authors. Its Mixture-of-Experts models, V4-Pro with 1.6T parameters and V4-Flash with 284B, each support a context length of one million tokens.

  8. As of October 2026

    KV-cache compression in V4.1-Flash

    In September 2026, DeepSeek-V4.1-Flash appears with You among its authors and combines cross-layer KV-cache reuse in Compressed Sparse Attention 2 with FP4 KV caching. As of October 2026, You is affiliated with DeepSeek in China.

Sources and credits

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  1. [2401.02954] DeepSeek LLM: Scaling Open-Source Language Models with Longtermism arxiv.org. Checked 22 October 2026.
  2. [2405.04434] DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model arxiv.org. Checked 22 October 2026.
  3. [2406.11931] DeepSeek-Coder-V2: Breaking the Barrier of Closed-Source Models in Code Intelligence arxiv.org. Checked 22 October 2026.
  4. [2412.10302] DeepSeek-VL2: Mixture-of-Experts Vision-Language Models for Advanced Multimodal Understanding arxiv.org. Checked 22 October 2026.
  5. [2412.19437] DeepSeek-V3 Technical Report arxiv.org. Checked 22 October 2026.
  6. DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning | Nature nature.com. Checked 22 October 2026.
  7. DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning - PMC pmc.ncbi.nlm.nih.gov. Checked 22 October 2026.
  8. [2512.02556] DeepSeek-V3.2: Pushing the Frontier of Open Large Language Models arxiv.org. Checked 22 October 2026.
  9. [2606.19348] DeepSeek-V4: Towards Highly Efficient Million-Token Context Intelligence arxiv.org. Checked 22 October 2026.
  10. [2609.19969] DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression arxiv.org. Checked 22 October 2026.
  11. Yuxiang You | OpenAlex openalex.org. Checked 22 October 2026.