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
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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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- Deepseek's Liang Wenfeng hires graduates over "AI Wizards"
- DeepSeek-V2: A Strong, Economical, and Efficient Mixture-of-Experts Language Model
- IEEE INFOCOM 2024
- DeepSeek-V3 Technical Report
- DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learning
- DeepSeek-R1 incentivizes reasoning in LLMs through reinforcement learning
- DeepSeek-V3.2: Pushing the Frontier of Open Large Language Models
- DualPath: Breaking the Storage Bandwidth Bottleneck in Agentic LLM Inference
- DSpark: Confidence-Scheduled Speculative Decoding with Semi-Autoregressive Generation
- DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression
- Deepseek researchers | alphaXiv