diff --git a/packages/sdk/openapi.json b/packages/sdk/openapi.json
index feb4a29a5..f50cc06c1 100644
--- a/packages/sdk/openapi.json
+++ b/packages/sdk/openapi.json
@@ -6392,6 +6392,9 @@
             },
             "required": ["input", "output", "reasoning", "cache"]
           },
+          "variant": {
+            "type": "string"
+          },
           "finish": {
             "type": "string"
           }