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medgemma-4b-antihallu
AlphaRaven/medgemma-4b-antihallu
medgemma-4b-antihallu is a machine learning model from AlphaRaven. Use it for the machine learning task on the model card, and read the license before you ship it in a product. The card lists the license as apache-2.0.
MedGemma 4B fine-tuned with RLFR (Reinforcement Learning from Feature Rewards) to reduce hallucination in pharmacovigilance document generation.
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At a glance
- License
- apache-2.0
- Model type
- gemma3
- Access
- Public
- Created
- Feb 23, 2026
- Updated
- Feb 23, 2026
- SHA
- 66102b70
Base models
Model card
From the Hugging Face model README
MedGemma 4B Anti-Hallucination
MedGemma 4B fine-tuned with RLFR (Reinforcement Learning from Feature Rewards) to reduce hallucination in pharmacovigilance document generation.
- Base model:
google/medgemma-4b-it - Method: RLFR with 6 reward features (factual accuracy, completeness, format compliance, etc.)
- Task: Generate MedWatch 3500A pharmacovigilance narratives from CRF data
Usage
from transformers import AutoModelForCausalLM, AutoTokenizer
model = AutoModelForCausalLM.from_pretrained("AlphaRaven/medgemma-4b-antihallu")
tokenizer = AutoTokenizer.from_pretrained("AlphaRaven/medgemma-4b-antihallu")
Part of the Clinical Trial Simulation Engine pipeline.
- Type
- gemma3
- License
- apache-2.0
- Created
- Feb 23, 2026
- Updated
- Feb 23, 2026