Lasso vs. Jev: Can Jev really replace prompt injection classifiers?

Lasso tested prompt injection classifiers on 3,669 public benchmark attacks: at a 0.25% false positive rate, its own classifier recalls 95.4%, TypeSafe's Jev 76.2%, and PIGuard and fine-tuned Laya about 30%. Jev recalls 99.8% on explicit override attacks but only 63.4% on 2,383 injections without override wording.