Haoran Wei
Haoran Wei is an AI researcher whose work connects computer vision, document understanding and language models. He coauthored Vary and General OCR Theory, which explore vision vocabulary expansion and end-to-end document recognition. He coauthored Qwen2, Qwen2.5 and Qwen3 reports, then coauthored DeepSeek-OCR systems for document context compression. As of October 2026, he is a researcher at DeepSeek specializing in computer vision and multimodal language models.
Timeline
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2023
Vary's vision vocabulary
In 2023, he coauthors Vary, which expands a large vision-language model's visual vocabulary for fine-grained perception, including document OCR.
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July 2024
Qwen2 language and multimodal models
In July 2024, he coauthors Qwen2, a series of large language and multimodal models ranging from 0.5 to 72 billion parameters.
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September 2024
General OCR Theory and GOT
In September 2024, he coauthors General OCR Theory and its GOT model, which handles text, formulas, tables, charts, sheet music and geometric shapes through an end-to-end OCR system.
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December 2024
Qwen2.5 trained on 18 trillion tokens
In December 2024, he coauthors Qwen2.5, a large language model series trained on datasets scaled from 7 trillion to 18 trillion tokens.
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May 2025
Qwen3's dense and MoE models
In May 2025, he coauthors Qwen3, a model family developed by Alibaba Cloud's Qwen Team, with dense and mixture-of-experts models from 0.6 to 235 billion parameters.
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October 2025
Optical compression with DeepSeek-OCR
In October 2025, he coauthors DeepSeek-OCR, which compresses long contexts through optical 2D mapping and reports 97% OCR precision when text tokens are within 10 times vision tokens.
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As of October 2026
Researcher at DeepSeek
In January 2026, he coauthors DeepSeek-OCR 2, whose encoder uses causal reasoning to reorder visual tokens by image semantics. As of October 2026, he is a researcher at DeepSeek specializing in computer vision and multimodal language models.
Sources and credits
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- [2312.06109] Vary: Scaling up the Vision Vocabulary for Large Vision-Language Models
- [2407.10671] Qwen2 Technical Report
- [2409.01704] General OCR Theory: Towards OCR-2.0 via a Unified End-to-end Model
- [2412.15115] Qwen2.5 Technical Report
- [2505.09388] Qwen3 Technical Report
- GitHub - QwenLM/Qwen3: Qwen3 is the large language model series developed by Qwen team, Alibaba Cloud.
- [2510.18234] DeepSeek-OCR: Contexts Optical Compression
- [2601.20552] DeepSeek-OCR 2: Visual Causal Flow
- Haoran Wei | alphaXiv