Add model card README

README.md

@@ -17,7 +17,8 @@ Checkpoints and test predictions for span-level hallucination detection in tool-
 
 | Path | Description |
 |------|-------------|
-| `deberta_contradiction_tuned/` | Tool-aware DeBERTa fine-tuned on mixed train (contradiction oversample ×3) |
+| `deberta_contradiction_tuned/` | Tool-aware DeBERTa fine-tuned on mixed train (contradiction oversample ×3) — **best run** |
+| `deberta_mixed/` | Earlier/alternate DeBERTa mixed checkpoint (no contradiction oversampling) |
 | `predictions/` | `mixed_test` span predictions (DeBERTa, LookBack, Lettuce) |
 | `lookback/lookback_mixed_classifier.joblib` | Sklearn head for LookBackLens (TinyLlama features) |
 | `lookback/lookback_mixed_train_features.npz` | Cached train attention features (~1.1 GB) |