diff --git a/inference/models/aliases.py b/inference/models/aliases.py
index 2c0cd3dea1..aad879ffe1 100644
--- a/inference/models/aliases.py
+++ b/inference/models/aliases.py
@@ -62,6 +62,7 @@
     "rfdetr-nano": "coco/38",
     "rfdetr-small": "coco/39",
     "rfdetr-medium": "coco/40",
+    "rfdetr-seg-preview": "coco-dataset-vdnr1/26",
 }
 
 REGISTERED_ALIASES = {
diff --git a/inference_sdk/http/utils/aliases.py b/inference_sdk/http/utils/aliases.py
index 2ea070a222..7af5a9b78e 100644
--- a/inference_sdk/http/utils/aliases.py
+++ b/inference_sdk/http/utils/aliases.py
@@ -27,6 +27,7 @@
     "rfdetr-nano": "coco/38",
     "rfdetr-small": "coco/39",
     "rfdetr-medium": "coco/40",
+    "rfdetr-seg-preview": "coco-dataset-vdnr1/26",
 }
 
 QWEN_ALIASES = {