Show HN: Prompt injection detector beats ProtectAI by 19% accuracy, 8.9x smaller
https://huggingface.co/hlyn/prompt-injection-judge-deberta-70m
ProtectAI's deberta-v3 is the most downloaded prompt injection classifier on HuggingFace. We benchmarked directly against it on Qualifire's independent dataset (excluded from our training).* 91.68% vs 72.28% accuracy
* 95.84% vs 65.33% precision — they block 1 in 3 legitimate users
* 83MB vs 739MB ONNX size
* 101ms vs 646ms on CPU
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