diff --git a/llm/default_plugins/openai_models.py b/llm/default_plugins/openai_models.py
index 94c1ffce..d7359039 100644
--- a/llm/default_plugins/openai_models.py
+++ b/llm/default_plugins/openai_models.py
@@ -438,6 +438,12 @@ class ReasoningEffortEnum(str, Enum):
     high = "high"
 
 
+class VerbosityEnum(str, Enum):
+    low = "low"
+    medium = "medium"
+    high = "high"
+
+
 class OptionsForReasoning(SharedOptions):
     json_object: Optional[bool] = Field(
         description="Output a valid JSON object {...}. Prompt must mention JSON.",
@@ -451,6 +457,14 @@ class OptionsForReasoning(SharedOptions):
         ),
         default=None,
     )
+    verbosity: Optional[VerbosityEnum] = Field(
+        description=(
+            "Controls the verbosity of the model's response. Currently supported "
+            "values are low, medium, and high. Low verbosity produces more concise "
+            "responses, while high verbosity provides more detailed explanations."
+        ),
+        default=None,
+    )
 
 
 def _attachment(attachment):