Researcher

Xiaotao Nie

Xiaotao Nie is an artificial-intelligence researcher whose coauthored DeepSeek papers span open language models, AI computing clusters, mixture-of-experts architectures, and reinforcement-learning methods for reasoning. In 2024, he coauthored DeepSeek LLM, DeepSeek-V2, the Fire-Flyer AI-HPC cluster design, and the 671-billion-parameter DeepSeek-V3 model. His 2025 research included DeepSeek-R1, published in Nature on incentivizing reasoning through pure reinforcement learning, and DeepSeek-V3.2. In 2026, he coauthored the million-token DeepSeek-V4 preview series and the multimodal DeepSeek-V4.1-Flash model for KV-cache compression.

Works
8
Citations
2,087
h-index
6

Publication numbers from OpenAlex, as of 22 October 2026.

Timeline

  1. January 2024

    DeepSeek LLM research

    In January 2024, he coauthors DeepSeek LLM, an open-source language model family with 7B and 67B configurations trained on a dataset of two trillion tokens. Its 67B Chat model surpasses GPT-3.5 in open-ended evaluations.

  2. May 2024

    The DeepSeek-V2 model

    He coauthors DeepSeek-V2 in May 2024, a 236-billion-parameter mixture-of-experts language model that activates 21 billion parameters per token across a 128,000-token context length. Its architecture combines Multi-head Latent Attention with DeepSeekMoE.

  3. August 2024

    Fire-Flyer AI-HPC cluster design

    In August 2024, he coauthors the Fire-Flyer AI-HPC paper on DeepSeek-AI's software-hardware co-design for deep learning. Deployed with 10,000 PCIe A100 GPUs, the Fire-Flyer 2 cluster approaches DGX-A100 performance while cutting costs in half and reducing energy consumption by 40 percent.

  4. December 2024

    The DeepSeek-V3 model

    With the DeepSeek-AI team in December 2024, he coauthors DeepSeek-V3, a 671-billion-parameter mixture-of-experts language model that activates 37 billion parameters for each token.

  5. January–September 2025

    DeepSeek-R1 reasoning

    He coauthors the DeepSeek-R1 technical report in January 2025 and the peer-reviewed edition in Nature in September 2025. The framework uses pure reinforcement learning to incentivize reasoning in language models and develop advanced reasoning patterns without human-labelled reasoning trajectories.

  6. December 2025

    The DeepSeek-V3.2 model

    In December 2025, he coauthors DeepSeek-V3.2, an open large language model that pairs high computational efficiency with reasoning and agent performance.

  7. April 2026

    The DeepSeek-V4 preview series

    His April 2026 work includes a preview of the DeepSeek-V4 series, presenting two mixture-of-experts language models built for million-token context intelligence.

  8. September 2026

    DeepSeek-V4.1-Flash research

    In September 2026, he coauthors DeepSeek-V4.1-Flash, a multimodal mixture-of-experts model with 552 billion backbone parameters that supports contexts of up to one million tokens. The model introduces a causal encoder-decoder architecture to compress the KV cache and reduce its footprint.

Sources and credits

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  1. DeepSeek LLM: Scaling Open-Source Language Models with Longtermism arxiv.org. Checked 22 October 2026.
  2. DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model arxiv.org. Checked 22 October 2026.
  3. Fire-Flyer AI-HPC: A Cost-Effective Software-Hardware Co-Design for Deep Learning arxiv.org. Checked 22 October 2026.
  4. DeepSeek-V3 Technical Report arxiv.org. Checked 22 October 2026.
  5. DeepSeek-V3 Technical Report | alphaXiv alphaxiv.org. Checked 22 October 2026.
  6. DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learning arxiv.org. Checked 22 October 2026.
  7. DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning nature.com. Checked 22 October 2026.
  8. DeepSeek-V3.2: Pushing the Frontier of Open Large Language Models arxiv.org. Checked 22 October 2026.
  9. DeepSeek-V4: Towards Highly Efficient Million-Token Context Intelligence arxiv.org. Checked 22 October 2026.
  10. DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression arxiv.org. Checked 22 October 2026.