diff --git a/relay/channel/task/gemini/adaptor.go b/relay/channel/task/gemini/adaptor.go
index 1f8a7b708..0fa9dda4b 100644
--- a/relay/channel/task/gemini/adaptor.go
+++ b/relay/channel/task/gemini/adaptor.go
@@ -24,9 +24,13 @@ import (
 	"github.com/pkg/errors"
 )
 
-// VideoGenerationConfig represents the video generation configuration
+// ============================
+// Request / Response structures
+// ============================
+
+// GeminiVideoGenerationConfig represents the video generation configuration
 // Based on: https://ai.google.dev/gemini-api/docs/video
-type VideoGenerationConfig struct {
+type GeminiVideoGenerationConfig struct {
 	AspectRatio      string  `json:"aspectRatio,omitempty"`      // "16:9" or "9:16"
 	DurationSeconds  float64 `json:"durationSeconds,omitempty"`  // 4, 6, or 8 (as number)
 	NegativePrompt   string  `json:"negativePrompt,omitempty"`   // unwanted elements
@@ -34,21 +38,15 @@ type VideoGenerationConfig struct {
 	Resolution       string  `json:"resolution,omitempty"`       // video resolution
 }
 
-type Image struct {
-	BytesBase64Encoded string `json:"bytesBase64Encoded,omitempty"`
-	MimeType           string `json:"mimeType,omitempty"`
+// GeminiVideoRequest represents a single video generation instance
+type GeminiVideoRequest struct {
+	Prompt string `json:"prompt"`
 }
 
-type VideoRequest struct {
-	Prompt    string `json:"prompt"`
-	Image     *Image `json:"image,omitempty"`
-	LastFrame *Image `json:"lastFrame,omitempty"`
-}
-
-// VideoPayload represents the complete video generation request payload
-type VideoPayload struct {
-	Instances  []VideoRequest        `json:"instances"`
-	Parameters VideoGenerationConfig `json:"parameters,omitempty"`
+// GeminiVideoPayload represents the complete video generation request payload
+type GeminiVideoPayload struct {
+	Instances  []GeminiVideoRequest        `json:"instances"`
+	Parameters GeminiVideoGenerationConfig `json:"parameters,omitempty"`
 }
 
 type submitResponse struct {
@@ -77,8 +75,6 @@ type operationResponse struct {
 					URI string `json:"uri"`
 				} `json:"video"`
 			} `json:"generatedSamples"`
-			RaiMediaFilteredCount   int      `json:"raiMediaFilteredCount"`
-			RaiMediaFilteredReasons []string `json:"raiMediaFilteredReasons"`
 		} `json:"generateVideoResponse"`
 	} `json:"response"`
 	Error struct {
@@ -104,7 +100,8 @@ func (a *TaskAdaptor) Init(info *relaycommon.RelayInfo) {
 
 // ValidateRequestAndSetAction parses body, validates fields and sets default action.
 func (a *TaskAdaptor) ValidateRequestAndSetAction(c *gin.Context, info *relaycommon.RelayInfo) (taskErr *dto.TaskError) {
-	return relaycommon.ValidateBasicTaskRequest(c, info, constant.TaskActionGenerate)
+	// Use the standard validation method for TaskSubmitReq
+	return relaycommon.ValidateBasicTaskRequest(c, info, constant.TaskActionTextGenerate)
 }
 
 // BuildRequestURL constructs the upstream URL.
@@ -140,21 +137,13 @@ func (a *TaskAdaptor) BuildRequestBody(c *gin.Context, info *relaycommon.RelayIn
 	}
 
 	// Create structured video generation request
-	body := VideoPayload{
-		Instances: []VideoRequest{
+	body := GeminiVideoPayload{
+		Instances: []GeminiVideoRequest{
 			{Prompt: req.Prompt},
 		},
-		Parameters: VideoGenerationConfig{},
+		Parameters: GeminiVideoGenerationConfig{},
 	}
 
-	if len(req.Images) > 0 {
-		body.Instances[0].Image = a.convertImage(req.Images[0])
-	}
-	if len(req.Images) > 1 {
-		body.Instances[0].LastFrame = a.convertImage(req.Images[1])
-	}
-
-	// Parse metadata for additional configuration
 	metadata := req.Metadata
 	medaBytes, err := json.Marshal(metadata)
 	if err != nil {
@@ -258,19 +247,20 @@ func (a *TaskAdaptor) ParseTaskResult(respBody []byte) (*relaycommon.TaskInfo, e
 		return ti, nil
 	}
 
-	if len(op.Response.GenerateVideoResponse.GeneratedSamples) == 0 {
-		ti.Status = model.TaskStatusFailure
-		ti.Reason = fmt.Sprintf("no generated video url found: %s", strings.Join(op.Response.GenerateVideoResponse.RaiMediaFilteredReasons, "; "))
-	} else {
-		if uri := op.Response.GenerateVideoResponse.GeneratedSamples[0].Video.URI; uri != "" {
-			ti.RemoteUrl = uri
-		}
-		ti.Status = model.TaskStatusSuccess
-	}
+	ti.Status = model.TaskStatusSuccess
 	ti.Progress = "100%"
+
 	taskID := encodeLocalTaskID(op.Name)
 	ti.TaskID = taskID
 	ti.Url = fmt.Sprintf("%s/v1/videos/%s/content", system_setting.ServerAddress, taskID)
+
+	// Extract URL from generateVideoResponse if available
+	if len(op.Response.GenerateVideoResponse.GeneratedSamples) > 0 {
+		if uri := op.Response.GenerateVideoResponse.GeneratedSamples[0].Video.URI; uri != "" {
+			ti.RemoteUrl = uri
+		}
+	}
+
 	return ti, nil
 }
 
@@ -299,30 +289,6 @@ func (a *TaskAdaptor) ConvertToOpenAIVideo(task *model.Task) ([]byte, error) {
 	return common.Marshal(video)
 }
 
-func (a *TaskAdaptor) convertImage(imageStr string) *Image {
-	if strings.TrimSpace(imageStr) == "" {
-		return nil
-	}
-	img := &Image{
-		MimeType:           "image/png",
-		BytesBase64Encoded: imageStr,
-	}
-	if strings.HasPrefix(imageStr, "data:image/") {
-		parts := strings.Split(imageStr, ";base64,")
-		if len(parts) == 2 {
-			img.MimeType = strings.TrimPrefix(parts[0], "data:")
-			img.BytesBase64Encoded = parts[1]
-		}
-	} else if strings.HasPrefix(imageStr, "http") {
-		mimeType, data, err := service.GetImageFromUrl(imageStr)
-		if err == nil {
-			img.MimeType = mimeType
-			img.BytesBase64Encoded = data
-		}
-	}
-	return img
-}
-
 // ============================
 // helpers
 // ============================