Erhang Li
Erhang Li is a DeepSeek-AI researcher whose work spans open language models, reinforcement-learning reasoning, and systems for agent training. His 2024 work includes DeepSeek LLM's 7B and 67B configurations and DeepSeek-V3's 671B-parameter mixture-of-experts model. In 2025, he coauthors DeepSeek-R1 and DeepSeek-V3.2; in 2026, he works on the million-token DeepSeek-V4 and DeepSeek Elastic Compute. As of October 2026, he contributes to DeepSeek-AI model research.
Timeline
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2024
Scaling DeepSeek LLM
In 2024, he coauthors DeepSeek LLM, which studies scaling open-source language models in the 7B and 67B configurations. The team uses a 2-trillion-token pretraining dataset, and the 67B Chat model outperforms LLaMA-2 70B on code, mathematics and reasoning benchmarks.
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2024
DeepSeek-V3 technical report
In 2024, he coauthors the DeepSeek-V3 report, which describes a 671B-parameter mixture-of-experts model with 37B parameters active per token. It introduces multi-token prediction and auxiliary-loss-free load balancing.
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2025
DeepSeek-R1 reasoning research
In 2025, he coauthors DeepSeek-R1 research on reasoning through reinforcement learning. Its published training pipeline combines rejection sampling, reinforcement learning and supervised fine-tuning.
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December 2025
DeepSeek-V3.2 model
In December 2025, he coauthors DeepSeek-V3.2, which combines efficient sparse attention with scaled reinforcement learning to improve reasoning and agent performance.
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April 2026
DeepSeek-V4 long-context models
In April 2026, he coauthors the DeepSeek-V4 report, which introduces Pro and Flash mixture-of-experts models that support a one-million-token context.
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September 2026
DeepSeek Elastic Compute
In September 2026, he coauthors DeepSeek Elastic Compute, a production sandbox platform with function-call, container, microVM and full-VM backends for large-scale agent training.
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As of October 2026
Research contributor at DeepSeek-AI
As of October 2026, he contributes to DeepSeek-AI model research, including the 2026 DeepSeek-V4 project.
Sources and credits
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- DeepSeek LLM: Scaling Open-Source Language Models with Longtermism
- 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
- DeepSeek-V4: Towards Highly Efficient Million-Token Context Intelligence
- DeepSeek Elastic Compute (DSec): A Sandbox Infrastructure for Effective Agentic Training at Scale
- Erhang Li | 500AI