diff --git a/testing/tests/test_hermes_chat_quality.py b/testing/tests/test_hermes_chat_quality.py
index 696926f9..01cd33ea 100644
--- a/testing/tests/test_hermes_chat_quality.py
+++ b/testing/tests/test_hermes_chat_quality.py
@@ -824,25 +824,28 @@ def test_codex_broker_auth_and_request_contract(tmp_path: Path, monkeypatch):
         "type": "input_image",
         "image_url": "data:image/png;base64,cHJpdmF0ZQ==",
     }
-    nested_switchyard_items = [
+    switchyard_enum_items = [
         {
             "role": "user",
             "content": [
                 {
                     "type": "input_image",
                     "image_url": {
-                        "image": {
-                            "original_url": "data:image/png;base64,cHJpdmF0ZQ=="
-                        }
+                        "type": "url",
+                        "data": {
+                            "url": "data:image/png;base64,cHJpdmF0ZQ==",
+                            "detail": "high",
+                        },
                     },
                 }
             ],
         }
     ]
     nested_image = module._validate_payload(
-        {"model": "gpt-5.6-terra", "input": nested_switchyard_items}
+        {"model": "gpt-5.6-terra", "input": switchyard_enum_items}
     )["input"][0]["content"][0]
     assert nested_image["image_url"] == "data:image/png;base64,cHJpdmF0ZQ=="
+    assert nested_image["detail"] == "high"
     with pytest.raises(ValueError, match=r"non-empty Responses image URL.*str\[4\]"):
         module._validate_payload(
             {