G-Health

G-Health is a family of large language models for medical and preventive health use cases. Built on Qwen3, the models are aligned with large-scale medical dialogues and further adapted for health checkup report interpretation.

Model family

  • G-Health-14B-Base / G-Health-32B-Base: medical-domain aligned models on top of Qwen3.
  • G-Health-14B-instruct / G-Health-32B-instruct: built on the corresponding Base models, then fine-tuned specifically for health checkup reports (more structured report-to-action outputs).

Training (brief)

Base models (medical-domain alignment)

Starting from Qwen3, we apply two-stage alignment:

  • SFT (Supervised Fine-Tuning): 2,817,556 dialogue samples
  • DPO (Direct Preference Optimization): 1,643,350 preference samples

This produces a medical-domain model with improved robustness and communication quality.

Instruct models (health checkup specialization)

On top of the Base models, we perform additional fine-tuning on health checkup report data to improve:

  • interpretation of lab values and imaging conclusions
  • cautious risk signaling under uncertainty
  • enhanced personalization awareness for tailoring explanations and recommendations to individual contexts

Citation

@article{lin2026clinically,
  title={Clinically grounded multi-agent artificial intelligence for preventive health management},
  author={Lin, Hao and Zhang, Yang and Ye, Dongxin and He, Sicheng and Du, Zhaowu and Yu, Yang and Yu, Xiao and Ren, Liping and Dong, Nanqing and Hu, Fang and others},
  year={2026}
}
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