diff --git a/dto/openai_request.go b/dto/openai_request.go
index e8833b3d..e491812a 100644
--- a/dto/openai_request.go
+++ b/dto/openai_request.go
@@ -53,6 +53,7 @@ type GeneralOpenAIRequest struct {
 	Audio            any               `json:"audio,omitempty"`
 	EnableThinking   any               `json:"enable_thinking,omitempty"` // ali
 	ExtraBody        any               `json:"extra_body,omitempty"`
+	WebSearchOptions *WebSearchOptions `json:"web_search_options,omitempty"`
 }
 
 type ToolCallRequest struct {
@@ -371,6 +372,11 @@ func (m *Message) ParseContent() []MediaContent {
 	return contentList
 }
 
+type WebSearchOptions struct {
+	SearchContextSize string          `json:"search_context_size,omitempty"`
+	UserLocation      json.RawMessage `json:"user_location,omitempty"`
+}
+
 type OpenAIResponsesRequest struct {
 	Model              string               `json:"model"`
 	Input              json.RawMessage      `json:"input,omitempty"`
diff --git a/relay/relay-text.go b/relay/relay-text.go
index 8d5cd384..f1105907 100644
--- a/relay/relay-text.go
+++ b/relay/relay-text.go
@@ -47,6 +47,20 @@ func getAndValidateTextRequest(c *gin.Context, relayInfo *relaycommon.RelayInfo)
 	if textRequest.Model == "" {
 		return nil, errors.New("model is required")
 	}
+	if textRequest.WebSearchOptions != nil {
+		if textRequest.WebSearchOptions.SearchContextSize != "" {
+			validSizes := map[string]bool{
+				"high":   true,
+				"medium": true,
+				"low":    true,
+			}
+			if !validSizes[textRequest.WebSearchOptions.SearchContextSize] {
+				return nil, errors.New("invalid search_context_size, must be one of: high, medium, low")
+			}
+		} else {
+			textRequest.WebSearchOptions.SearchContextSize = "medium"
+		}
+	}
 	switch relayInfo.RelayMode {
 	case relayconstant.RelayModeCompletions:
 		if textRequest.Prompt == "" {
@@ -76,6 +90,10 @@ func TextHelper(c *gin.Context) (openaiErr *dto.OpenAIErrorWithStatusCode) {
 
 	// get & validate textRequest 获取并验证文本请求
 	textRequest, err := getAndValidateTextRequest(c, relayInfo)
+	if textRequest.WebSearchOptions != nil {
+		c.Set("chat_completion_web_search_context_size", textRequest.WebSearchOptions.SearchContextSize)
+	}
+
 	if err != nil {
 		common.LogError(c, fmt.Sprintf("getAndValidateTextRequest failed: %s", err.Error()))
 		return service.OpenAIErrorWrapperLocal(err, "invalid_text_request", http.StatusBadRequest)
@@ -370,9 +388,20 @@ func postConsumeQuota(ctx *gin.Context, relayInfo *relaycommon.RelayInfo,
 			dWebSearchQuota = decimal.NewFromFloat(webSearchPrice).
 				Mul(decimal.NewFromInt(int64(webSearchTool.CallCount))).
 				Div(decimal.NewFromInt(1000)).Mul(dGroupRatio).Mul(dQuotaPerUnit)
-			extraContent += fmt.Sprintf("Web Search 调用 %d 次，上下文大小 %s，调用花费 $%s",
+			extraContent += fmt.Sprintf("Web Search 调用 %d 次，上下文大小 %s，调用花费 %s",
 				webSearchTool.CallCount, webSearchTool.SearchContextSize, dWebSearchQuota.String())
 		}
+	} else if strings.HasSuffix(modelName, "search-preview") {
+		// search-preview 模型不支持 response api
+		searchContextSize := ctx.GetString("chat_completion_web_search_context_size")
+		if searchContextSize == "" {
+			searchContextSize = "medium"
+		}
+		webSearchPrice = operation_setting.GetWebSearchPricePerThousand(modelName, searchContextSize)
+		dWebSearchQuota = decimal.NewFromFloat(webSearchPrice).
+			Div(decimal.NewFromInt(1000)).Mul(dGroupRatio).Mul(dQuotaPerUnit)
+		extraContent += fmt.Sprintf("Web Search 调用 1 次，上下文大小 %s，调用花费 %s",
+			searchContextSize, dWebSearchQuota.String())
 	}
 	// file search tool 计费
 	var dFileSearchQuota decimal.Decimal
@@ -463,10 +492,16 @@ func postConsumeQuota(ctx *gin.Context, relayInfo *relaycommon.RelayInfo,
 		other["image_ratio"] = imageRatio
 		other["image_output"] = imageTokens
 	}
-	if !dWebSearchQuota.IsZero() && relayInfo.ResponsesUsageInfo != nil {
-		if webSearchTool, exists := relayInfo.ResponsesUsageInfo.BuiltInTools[dto.BuildInToolWebSearchPreview]; exists {
+	if !dWebSearchQuota.IsZero() {
+		if relayInfo.ResponsesUsageInfo != nil {
+			if webSearchTool, exists := relayInfo.ResponsesUsageInfo.BuiltInTools[dto.BuildInToolWebSearchPreview]; exists {
+				other["web_search"] = true
+				other["web_search_call_count"] = webSearchTool.CallCount
+				other["web_search_price"] = webSearchPrice
+			}
+		} else if strings.HasSuffix(modelName, "search-preview") {
 			other["web_search"] = true
-			other["web_search_call_count"] = webSearchTool.CallCount
+			other["web_search_call_count"] = 1
 			other["web_search_price"] = webSearchPrice
 		}
 	}