diff --git a/controller/channel.go b/controller/channel.go
index ad85fe24..a31e1f47 100644
--- a/controller/channel.go
+++ b/controller/channel.go
@@ -119,8 +119,11 @@ func FetchUpstreamModels(c *gin.Context) {
 		baseURL = channel.GetBaseURL()
 	}
 	url := fmt.Sprintf("%s/v1/models", baseURL)
-	if channel.Type == common.ChannelTypeGemini {
+	switch channel.Type {
+	case common.ChannelTypeGemini:
 		url = fmt.Sprintf("%s/v1beta/openai/models", baseURL)
+	case common.ChannelTypeAli:
+		url = fmt.Sprintf("%s/compatible-mode/v1/models", baseURL)
 	}
 	body, err := GetResponseBody("GET", url, channel, GetAuthHeader(channel.Key))
 	if err != nil {
diff --git a/dto/openai_request.go b/dto/openai_request.go
index e491812a..78706f9c 100644
--- a/dto/openai_request.go
+++ b/dto/openai_request.go
@@ -43,6 +43,7 @@ type GeneralOpenAIRequest struct {
 	ResponseFormat   *ResponseFormat   `json:"response_format,omitempty"`
 	EncodingFormat   any               `json:"encoding_format,omitempty"`
 	Seed             float64           `json:"seed,omitempty"`
+	ParallelTooCalls bool              `json:"parallel_tool_calls,omitempty"`
 	Tools            []ToolCallRequest `json:"tools,omitempty"`
 	ToolChoice       any               `json:"tool_choice,omitempty"`
 	User             string            `json:"user,omitempty"`
diff --git a/relay/channel/vertex/adaptor.go b/relay/channel/vertex/adaptor.go
index d21a3e08..b75136bf 100644
--- a/relay/channel/vertex/adaptor.go
+++ b/relay/channel/vertex/adaptor.go
@@ -95,14 +95,23 @@ func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
 		} else {
 			suffix = "generateContent"
 		}
-		return fmt.Sprintf(
-			"https://%s-aiplatform.googleapis.com/v1/projects/%s/locations/%s/publishers/google/models/%s:%s",
-			region,
-			adc.ProjectID,
-			region,
-			info.UpstreamModelName,
-			suffix,
-		), nil
+		if region == "global" {
+			return fmt.Sprintf(
+				"https://aiplatform.googleapis.com/v1/projects/%s/locations/global/publishers/google/models/%s:%s",
+				adc.ProjectID,
+				info.UpstreamModelName,
+				suffix,
+			), nil
+		} else {
+			return fmt.Sprintf(
+				"https://%s-aiplatform.googleapis.com/v1/projects/%s/locations/%s/publishers/google/models/%s:%s",
+				region,
+				adc.ProjectID,
+				region,
+				info.UpstreamModelName,
+				suffix,
+			), nil
+		}
 	} else if a.RequestMode == RequestModeClaude {
 		if info.IsStream {
 			suffix = "streamRawPredict?alt=sse"