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Full-stack recurrence ·
Nanbeige4.2-3B
Nanbeige4.2-3B: Unlocking Agentic Capabilities in a Compact Model
A released language model that applies recurrent computation across a shared decoder stack.
Inside the method
[ 22-layer decoder stack ] × 2
Simplified conceptual schematic. Consult the paper for the complete architecture.
- Recurrence family
- Full-stack recurrence
- Depth control
- Two passes in released config
- KV / state strategy
- See model implementation
Reading note
The published configuration specifies 22 layers and 2 loops. Other modes supported by the code do not imply that the released weights use them.
Sources checked 2026-09-15. This catalog does not imply independent reproduction.
Cite this work
@misc{nanbeige2026,
title = {Nanbeige4.2-3B: Unlocking Agentic Capabilities in a Compact Model},
author = {Nanbeige Lab and Chen Yang and Chengrui Huang and Fufeng Lan and Hanhui Chen and Hao Zhou and Huatong Song and Jiaqi Cao and Jiaying Zhu and Jinlin Niu and Kai Wang and Lisheng Huang and Qiliang Liang and Ran Le and Ruixiang Feng and Shuang Sun and Tao Gu and Tao Zhang and Tianyu Luo and Yang Song and Yun Xing and Yuntao Wen and Ziyao Xu and Zongchao Chen and Zongqiang Li},
year = {2026},
eprint = {2607.22083},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.22083}
}