China's First Chief Physician-Approved AI Model Launches on Quark Search
China's First Chief Physician-Approved AI Model Now Available on Quark Search
July 23, 2025 - In a major breakthrough for medical AI, the Quark Health Large Model has become China's first artificial intelligence system to successfully pass written examinations across 12 core medical disciplines as evaluated by chief physicians. The validated "Chief-level AI Doctor" capability is now fully integrated into Quark's AI search platform.
From Associate Chief to Chief-Level Performance
This achievement marks a significant advancement since the model passed China's associate chief physician qualification exam in May. Comparative analyses reveal the Quark model demonstrates increasing performance advantages as medical case complexity rises, showing particular strength in complex medical reasoning tasks.
"We're not simply training AI to answer medical questions, but to learn medical thinking," explained Xu Jian, head of Quark's health algorithm team. The model builds on Alibaba's Qwen foundation but implements deep engineering optimizations specifically for healthcare scenarios.
The Breakthrough of 'Slow Thinking'
The model's most significant innovation is its development of chain reasoning and multi-stage clinical deduction capabilities, allowing it to methodically analyze complex cases through sequential logical steps rather than immediate responses.
This "slow thinking" ability stems from Quark's proprietary training system featuring:
- Dual data pipelines (verifiable diagnostic data vs. non-verifiable health advice)
- Dual reward mechanisms evaluating both reasoning process and final conclusions
- Multi-stage reinforcement learning with physician verification
- Anti-cheating protocols preventing "high-score speculation"
Medical Community Validation
The system benefits from oversight by over 400 senior medical experts (associate chief physician level or above) within its thousand-member physician annotation team. Professor Xie Jinsheng, cardiac surgery chief at Anzhen Hospital, noted the AI's responses surpass those of some specialist doctors in professionalism.
Quark Health has become essential for China's medical community, with:
- Over 2 million monthly active users among medical students nationwide
- Coverage exceeding 50% of all medical students
- Widespread use for exam preparation, clinical diagnostics, and knowledge searches
Key Points:
- First approved model: China's inaugural chief physician-validated medical AI
- Clinical reasoning: Specializes in complex case analysis through multi-stage deduction
- Expert oversight: Developed with input from hundreds of senior physicians
- Medical adoption: Used by majority of Chinese medical students for education and diagnostics