Researcher

Yixuan Tan

As of October 2026, Yixuan Tan is a researcher at DeepSeek-AI focused on model scaling and inference efficiency; their work spans language models, RDMA systems and inference. They joined DeepSeek in December 2023 as a core systems engineer and were an undergraduate in 2024. In 2024, they coauthored DeepSeek-V2, DeepSeek-V3 and RB², a high-throughput ring buffer for RDMA. In 2025, they coauthored DeepSeek-R1, which uses reinforcement learning for reasoning, and DeepSeek-V3.2, which pairs computational efficiency with reasoning and agent performance. During 2026, they coauthored DualPath, DSpark and DeepSeek-V4.1-Flash, a multimodal model that supports contexts up to one million tokens.

Now at
DeepSeek

Timeline

  1. December 2023

    Joining DeepSeek as a systems engineer

    They join DeepSeek in December 2023 as a core systems engineer. In 2024, they are an undergraduate.

  2. May 2024

    DeepSeek-V2 and RB²

    In May 2024, they coauthor DeepSeek-V2, a Mixture-of-Experts language model designed for economical training and efficient inference. At IEEE INFOCOM 2024, they coauthor RB², a high-performance RDMA-based distributed ring buffer that serves as a middle layer. It achieves 2.5× to 7.5× the throughput of state-of-the-art designs while maintaining comparable tail latency for small messages.

  3. December 2024

    The DeepSeek-V3 report

    In December 2024, they coauthor the DeepSeek-V3 report, which describes a model with 671 billion total parameters and 37 billion activated per token.

  4. 2025

    DeepSeek-R1 reasoning

    In 2025, they coauthor the DeepSeek-R1 report, which develops reasoning with pure reinforcement learning and without human-labeled reasoning trajectories. Nature publishes the peer-reviewed paper in September 2025.

  5. December 2025

    DeepSeek-V3.2 and agent performance

    In December 2025, they coauthor DeepSeek-V3.2, a model that combines high computational efficiency with reasoning and agent performance.

  6. February 2026

    DualPath for agentic inference

    In February 2026, they coauthor DualPath, which loads KV-cache data from storage into decoding engines and then transfers it to prefill engines via RDMA. The system targets storage-bandwidth limits in agentic LLM inference.

  7. July 2026

    DSpark speculative decoding

    In July 2026, they coauthor DSpark, a speculative decoding framework that combines high-throughput parallel generation with adaptive, load-aware verification.

  8. As of October 2026

    Researcher at DeepSeek-AI

    In September 2026, they coauthor DeepSeek-V4.1-Flash, a multimodal Mixture-of-Experts model with 552 billion backbone parameters and support for contexts up to one million tokens. As of October 2026, they are a researcher at DeepSeek-AI focused on model scaling and inference efficiency.

Sources and credits

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  1. Deepseek's Liang Wenfeng hires graduates over "AI Wizards" efinancialcareers.com.au. Checked 21 October 2026.
  2. DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model arxiv.org. Checked 21 October 2026.
  3. IEEE INFOCOM 2024 infocom.info. Checked 21 October 2026.
  4. DeepSeek-V3 Technical Report arxiv.org. Checked 21 October 2026.
  5. DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learning arxiv.org. Checked 21 October 2026.
  6. DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning nature.com. Checked 21 October 2026.
  7. DeepSeek-V3.2: Pushing the Frontier of Open Large Language Models arxiv.org. Checked 21 October 2026.
  8. DualPath: Breaking the Storage Bandwidth Bottleneck in Agentic LLM Inference arxiv.org. Checked 21 October 2026.
  9. DSpark: Confidence-Scheduled Speculative Decoding with Semi-Autoregressive Generation arxiv.org. Checked 21 October 2026.
  10. DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression arxiv.org. Checked 21 October 2026.
  11. Deepseek researchers | alphaXiv alphaxiv.org. Checked 21 October 2026.