diff --git a/models.go b/models.go
index cb4ef24f..9ff5a7bd 100644
--- a/models.go
+++ b/models.go
@@ -2093,6 +2093,10 @@ func generateVideosConfigToMldev(fromObject map[string]any, parentObject map[str
 		InternalSetValueByPath(parentObject, []string{"webhookConfig"}, fromWebhookConfig)
 	}
 
+	if InternalGetValueByPath(fromObject, []string{"resizeMode"}) != nil {
+		return nil, fmt.Errorf("resizeMode parameter is not supported in Gemini API")
+	}
+
 	return toObject, nil
 }
 
@@ -2203,6 +2207,11 @@ func generateVideosConfigToVertex(fromObject map[string]any, parentObject map[st
 		return nil, fmt.Errorf("webhookConfig parameter is not supported in Gemini Enterprise Agent Platform (previously known as Vertex AI)")
 	}
 
+	fromResizeMode := InternalGetValueByPath(fromObject, []string{"resizeMode"})
+	if fromResizeMode != nil {
+		InternalSetValueByPath(parentObject, []string{"parameters", "resizeMode"}, fromResizeMode)
+	}
+
 	return toObject, nil
 }
 
diff --git a/types.go b/types.go
index 033e7a7e..90ca3b59 100644
--- a/types.go
+++ b/types.go
@@ -882,6 +882,18 @@ const (
 	VideoCompressionQualityLossless VideoCompressionQuality = "LOSSLESS"
 )
 
+// Resize mode for the image input for video generation.
+type ImageResizeMode string
+
+const (
+	// Crop the image to fit the correct aspect ratio (so we lose parts
+	// of the image in the process).
+	ImageResizeModeCrop ImageResizeMode = "CROP"
+	// Pad the image to fit the correct aspect ratio (so we don't lose
+	// any parts of the image in the process).
+	ImageResizeModePad ImageResizeMode = "PAD"
+)
+
 // Enum representing the tuning method.
 type TuningMethod string
 
@@ -4504,6 +4516,8 @@ type GenerateVideosConfig struct {
 	// Optional. Webhook configuration for receiving notifications when the
 	// video generation operation completes.
 	WebhookConfig *WebhookConfig `json:"webhookConfig,omitempty"`
+	// Optional. Resize mode of the image input for video generation.
+	ResizeMode ImageResizeMode `json:"resizeMode,omitempty"`
 }
 
 // A generated video.