diff --git a/core/schema/openai.go b/core/schema/openai.go
index 2aa69969b..6f3717256 100644
--- a/core/schema/openai.go
+++ b/core/schema/openai.go
@@ -99,7 +99,7 @@ type OpenAIResponse struct {
 	// OpenAI-SDK consumers that filter on a truthy `result.usage`
 	// (continuedev/continue, Kilo Code, Roo Code, etc.).
 	Usage    *OpenAIUsage    `json:"usage,omitempty"`
-	Metadata json.RawMessage `json:"metadata,omitempty"`
+	Metadata json.RawMessage `json:"metadata,omitempty" swaggertype:"object"`
 }
 
 // StreamOptions mirrors OpenAI's `stream_options` request field. The only
diff --git a/swagger/docs.go b/swagger/docs.go
index 6ae74b94a..dc2fcf063 100644
--- a/swagger/docs.go
+++ b/swagger/docs.go
@@ -7313,6 +7313,9 @@ const docTemplate = `{
                 "id": {
                     "type": "string"
                 },
+                "metadata": {
+                    "type": "object"
+                },
                 "model": {
                     "type": "string"
                 },
diff --git a/swagger/swagger.json b/swagger/swagger.json
index c19487f6c..a1e71cbdb 100644
--- a/swagger/swagger.json
+++ b/swagger/swagger.json
@@ -7310,6 +7310,9 @@
                 "id": {
                     "type": "string"
                 },
+                "metadata": {
+                    "type": "object"
+                },
                 "model": {
                     "type": "string"
                 },
diff --git a/swagger/swagger.yaml b/swagger/swagger.yaml
index 6f9f6b1b7..12de303a0 100644
--- a/swagger/swagger.yaml
+++ b/swagger/swagger.yaml
@@ -2266,6 +2266,8 @@ definitions:
         type: array
       id:
         type: string
+      metadata:
+        type: object
       model:
         type: string
       object: