diff --git a/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/gold_report.json b/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/gold_report.json
new file mode 100644
index 0000000..0cc3d83
--- /dev/null
+++ b/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/gold_report.json
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diff --git a/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/metadata.json b/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/metadata.json
new file mode 100644
index 0000000..8aff29e
--- /dev/null
+++ b/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/metadata.json
@@ -0,0 +1,52 @@
+{
+  "model_id": "yolo26s-seg-v3-s-640px-2026-10-01",
+  "family": "yolo26s",
+  "task": "segmentation",
+  "training_date": "2026-10-01",
+  "run": "2026-09-30_v3-s-640px",
+  "dataset": "dataset/2026-09-29_v3",
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+}
diff --git a/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/weights.pt b/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/weights.pt
new file mode 100644
index 0000000..9b23358
--- /dev/null
+++ b/models/registry/yolo26s-seg-v3-s-640px-2026-10-01/weights.pt
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e5f6710f71585ed57118b6443cb00d3b6e31683055989b64c358ebfa98c9c8c
+size 23384413
diff --git a/runs/2026-09-30_v3-s-640px/metrics.json b/runs/2026-09-30_v3-s-640px/metrics.json
new file mode 100644
index 0000000..d1c02bf
--- /dev/null
+++ b/runs/2026-09-30_v3-s-640px/metrics.json
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+{
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+}
diff --git a/runs/2026-09-30_v3-s-640px/run.json b/runs/2026-09-30_v3-s-640px/run.json
index f324d7a..f1a1636 100644
--- a/runs/2026-09-30_v3-s-640px/run.json
+++ b/runs/2026-09-30_v3-s-640px/run.json
@@ -2,18 +2,68 @@
   "id": "2026-09-30_v3-s-640px",
   "dataset": "dataset/2026-09-29_v3",
   "base_weights": "models/base/yolo26s-seg.pt",
-  "status": "exported",
+  "status": "gate_failed",
   "created": "2026-09-30T07:17:45",
   "created_by": "jungfrau@mx-spark-01",
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-  "metrics": {},
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+    "baseline": "/data/user/duan_j/AareLC_train/models/registry/yolo26n-seg-v3-noflip-mask1-2026-09-30/gold_report.json",
+    "measured_at": "2026-10-01T04:18:50"
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       "by": "jungfrau@mx-spark-01",
       "note": "cluster: capacity lever, small model at 640 px, default recipe"
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+      "by": "duan_j@gpu102",
+      "note": "{\"baseline\": \"/data/user/duan_j/AareLC_train/models/registry/yolo26n-seg-v3-noflip-mask1-2026-09-30/gold_report.json\", \"f1_delta\": 0.0024, \"mask_iou_delta\": -0.0492, \"mask_score\": 0.7056, \"mask_score_baseline\": 0.7547, \"matched_only_iou_delta\": -0.0215, \"class_f1_delta\": {\"loop_all\": -0.003, \"pin\": -0.0104}, \"pass\": false}"
     }
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+  "host": "gpu102",
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+  "started": "2026-10-01T01:30:13"
 }