SOURCE-LINKED INTELLIGENCE
Hunyuan-A13B Technical Report
We present Hunyuan-A13B, an open-source large language model based on a Mixture-of-Experts architecture. It contains 80 billion total parameters but activates only 13 billion during inference, balancing model capability, computational efficiency, and deployment cost. The model is pretrained on a rigorously filtered 20T-token corpus with enhanced STEM data curation, improving factual reliability and reasoning ability. High-quality supervised fine-tuning and large-scale reinforcement learning further enhance its overall performance. Hunyuan-A13B also introduces a dual-mode Chain-of-Thought frame
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Evidence & attribution
- arXiv · AI, language, vision and robotics · 2026-09-23T03:21:24.000Z
First collected: 2026-09-24T01:22:21.678Z. This is not the publication date.