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cs.CL2026
Shieldstral
Antonia Calvi, Avinash Sooriyarachchi, Giada Pistilli +274
We introduce Shieldstral, a 3B-parameter policy-adaptive multimodal safety classifier that matches or outperforms models nearly 7 its size on text safety benchmarks and set…
cs.CL2026
Where Does the Signal Live? A Web Data Recipe for Medical Encoder Pretraining
Bofeng Huang, Jacques Sun, Diane Bouchacourt +2
Web data curation has been widely studied for decoder Large Language Model (LLM) pretraining. Encoders for dense-terminology domains such as medicine, by contrast, are pretrained o…