diff --git a/internal/registry/models/models.json b/internal/registry/models/models.json
index 9a30478801..26405ed972 100644
--- a/internal/registry/models/models.json
+++ b/internal/registry/models/models.json
@@ -1601,6 +1601,29 @@
         ]
       }
     },
+    {
+      "id": "gpt-5.4-mini",
+      "object": "model",
+      "created": 1772668800,
+      "owned_by": "openai",
+      "type": "openai",
+      "display_name": "GPT 5.4 Mini",
+      "version": "gpt-5.4-mini",
+      "description": "Stable version of GPT 5.4 Mini",
+      "context_length": 1050000,
+      "max_completion_tokens": 128000,
+      "supported_parameters": [
+        "tools"
+      ],
+      "thinking": {
+        "levels": [
+          "low",
+          "medium",
+          "high",
+          "xhigh"
+        ]
+      }
+    },
     {
       "id": "gpt-5.4",
       "object": "model",
@@ -1876,6 +1899,29 @@
         ]
       }
     },
+    {
+      "id": "gpt-5.4-mini",
+      "object": "model",
+      "created": 1772668800,
+      "owned_by": "openai",
+      "type": "openai",
+      "display_name": "GPT 5.4 Mini",
+      "version": "gpt-5.4-mini",
+      "description": "Stable version of GPT 5.4 Mini",
+      "context_length": 1050000,
+      "max_completion_tokens": 128000,
+      "supported_parameters": [
+        "tools"
+      ],
+      "thinking": {
+        "levels": [
+          "low",
+          "medium",
+          "high",
+          "xhigh"
+        ]
+      }
+    },
     {
       "id": "gpt-5.4",
       "object": "model",
@@ -2151,6 +2197,29 @@
         ]
       }
     },
+    {
+      "id": "gpt-5.4-mini",
+      "object": "model",
+      "created": 1772668800,
+      "owned_by": "openai",
+      "type": "openai",
+      "display_name": "GPT 5.4 Mini",
+      "version": "gpt-5.4-mini",
+      "description": "Stable version of GPT 5.4 Mini",
+      "context_length": 1050000,
+      "max_completion_tokens": 128000,
+      "supported_parameters": [
+        "tools"
+      ],
+      "thinking": {
+        "levels": [
+          "low",
+          "medium",
+          "high",
+          "xhigh"
+        ]
+      }
+    },
     {
       "id": "gpt-5.4",
       "object": "model",
@@ -2680,4 +2749,4 @@
       "max_completion_tokens": 32768
     }
   ]
-}
\ No newline at end of file
+}