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HuatuoGPT-3

FreedomIntelligenceOpen WeightsPending Human Review

HuatuoGPT-3 is FreedomIntelligence’s named medical language-model series, comprising 9B and 27B checkpoints based on Qwen3.5-9B and Qwen3.8-27B respectively. One-stage Policy Optimization adapts the models through medical reinforcement learning without preceding domain-specific supervised fine-tuning, using teacher guidance that is retired as performance improves. Apache-licensed weights, training code, data, and a rubric grader are published. Inference requires thinking mode and generates reasoning before a final response. Vision-capable backbones are retained, but the released model-card examples and medical evaluations focus on textual questions. September 2026 weight publication is verified; first-day precision remains unresolved.

2026-09
9B and 27B
Hybrid-attention vision-language Transformer
Apache-2.0

Specifications

Parameters
9B and 27B
Architecture
Hybrid-attention vision-language Transformer
License
Apache-2.0
Type
multimodal
Modalities
textimage

Benchmark Scores

Advanced Specifications

Model Family
HuatuoGPT
API Access
Not Available
Chat Interface
Not Available
Variants
HuatuoGPT-3-9B (Qwen3.5-9B)HuatuoGPT-3-27B (Qwen3.8-27B)

Capabilities & Limitations

Capabilities
medical reasoninglanguage question answeringdomain adaptation
Known Limitations
Requires thinking modeNot validated as an autonomous diagnostic or treatment systemText-focused medical evaluations do not establish clinical image reliabilityClinical use requires professional review and task-specific validation
Notable Use Cases
medical language-model researchclinician-supervised question-answering evaluationdomain reinforcement-learning research