diff --git a/relay/adaptor/anthropic/main.go b/relay/adaptor/anthropic/main.go
index 65aaefa0..78765ed6 100644
--- a/relay/adaptor/anthropic/main.go
+++ b/relay/adaptor/anthropic/main.go
@@ -159,7 +159,9 @@ func ConvertRequest(c *gin.Context, textRequest model.GeneralOpenAIRequest) (*Re
 			var content Content
 			if part.Type == model.ContentTypeText {
 				content.Type = "text"
-				content.Text = part.Text
+				if part.Text != nil {
+					content.Text = *part.Text
+				}
 			} else if part.Type == model.ContentTypeImageURL {
 				content.Type = "image"
 				content.Source = &ImageSource{
diff --git a/relay/adaptor/gemini/constants.go b/relay/adaptor/gemini/constants.go
index a2a6bcbe..424cf637 100644
--- a/relay/adaptor/gemini/constants.go
+++ b/relay/adaptor/gemini/constants.go
@@ -20,7 +20,7 @@ var ModelsSupportSystemInstruction = []string{
 	"gemini-2.0-flash", "gemini-2.0-flash-exp",
 	"gemini-2.0-flash-thinking-exp-01-21",
 	"gemini-2.0-flash-lite",
-	"gemini-2.0-flash-exp-image-generation",
+	// "gemini-2.0-flash-exp-image-generation",
 	"gemini-2.0-pro-exp-02-05",
 }
 
diff --git a/relay/adaptor/gemini/main.go b/relay/adaptor/gemini/main.go
index 396c9212..f80a93ff 100644
--- a/relay/adaptor/gemini/main.go
+++ b/relay/adaptor/gemini/main.go
@@ -109,9 +109,9 @@ func ConvertRequest(textRequest model.GeneralOpenAIRequest) *ChatRequest {
 		var parts []Part
 		imageNum := 0
 		for _, part := range openaiContent {
-			if part.Type == model.ContentTypeText {
+			if part.Type == model.ContentTypeText && part.Text != nil && *part.Text != "" {
 				parts = append(parts, Part{
-					Text: part.Text,
+					Text: *part.Text,
 				})
 			} else if part.Type == model.ContentTypeImageURL {
 				imageNum += 1
@@ -276,7 +276,7 @@ func responseGeminiChat2OpenAI(response *ChatResponse) *openai.TextResponse {
 						// Add to content items
 						contentItems = append(contentItems, model.MessageContent{
 							Type: model.ContentTypeText,
-							Text: part.Text,
+							Text: &part.Text,
 						})
 					}
 
diff --git a/relay/adaptor/ollama/main.go b/relay/adaptor/ollama/main.go
index fa1b05f0..2bb49767 100644
--- a/relay/adaptor/ollama/main.go
+++ b/relay/adaptor/ollama/main.go
@@ -43,7 +43,9 @@ func ConvertRequest(request model.GeneralOpenAIRequest) *ChatRequest {
 		for _, part := range openaiContent {
 			switch part.Type {
 			case model.ContentTypeText:
-				contentText = part.Text
+				if part.Text != nil {
+					contentText = *part.Text
+				}
 			case model.ContentTypeImageURL:
 				_, data, _ := image.GetImageFromUrl(part.ImageURL.Url)
 				imageUrls = append(imageUrls, data)
diff --git a/relay/model/message.go b/relay/model/message.go
index a1ffa615..597ee693 100644
--- a/relay/model/message.go
+++ b/relay/model/message.go
@@ -140,7 +140,7 @@ func (m Message) ParseContent() []MessageContent {
 	if ok {
 		contentList = append(contentList, MessageContent{
 			Type: ContentTypeText,
-			Text: content,
+			Text: &content,
 		})
 		return contentList
 	}
@@ -157,7 +157,7 @@ func (m Message) ParseContent() []MessageContent {
 				if subStr, ok := contentMap["text"].(string); ok {
 					contentList = append(contentList, MessageContent{
 						Type: ContentTypeText,
-						Text: subStr,
+						Text: &subStr,
 					})
 				}
 			case ContentTypeImageURL:
@@ -197,7 +197,7 @@ type ImageURL struct {
 type MessageContent struct {
 	// Type should be one of the following: text/input_audio
 	Type       string      `json:"type,omitempty"`
-	Text       string      `json:"text"`
+	Text       *string     `json:"text,omitempty"`
 	ImageURL   *ImageURL   `json:"image_url,omitempty"`
 	InputAudio *InputAudio `json:"input_audio,omitempty"`
 	// -------------------------------------