MEDVQA-GI-2026-Task2-Explainability

Models fine-tuned for ImageCLEFmed MEDVQA-GI 2026 — Subtask 2: Multimodal Explainability & Safety-Aware Reasoning.

Results

Model	Token-F1	BERTScore-F1	Safety-Score	Halluc-Rate	ECE
MedGemma-KvasirFT	0.4891	0.5602	0.7150	0.2880	0.8537
Qwen2.5-VL-KvasirFT	0.4967	0.5817	0.8511	0.3680	0.6838
Qwen2.5-VL-TransfFT	0.4954	0.5793	0.8401	0.3780	0.7016
Qwen2.5-VL-Base	0.4292	0.5174	0.8175	0.4560	0.7241
Hybrid	0.4456	0.5342	0.8309	0.3280	0.7359

Best model: Qwen2.5-VL-KvasirFT