diff --git a/relay/channel/claude/adaptor.go b/relay/channel/claude/adaptor.go
index 959327e16..59f7dd0a9 100644
--- a/relay/channel/claude/adaptor.go
+++ b/relay/channel/claude/adaptor.go
@@ -52,11 +52,16 @@ func (a *Adaptor) Init(info *relaycommon.RelayInfo) {
 }
 
 func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
+	baseURL := ""
 	if a.RequestMode == RequestModeMessage {
-		return fmt.Sprintf("%s/v1/messages", info.ChannelBaseUrl), nil
+		baseURL = fmt.Sprintf("%s/v1/messages", info.ChannelBaseUrl)
 	} else {
-		return fmt.Sprintf("%s/v1/complete", info.ChannelBaseUrl), nil
+		baseURL = fmt.Sprintf("%s/v1/complete", info.ChannelBaseUrl)
 	}
+	if info.IsClaudeBetaQuery {
+		baseURL = baseURL + "?beta=true"
+	}
+	return baseURL, nil
 }
 
 func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *relaycommon.RelayInfo) error {
diff --git a/relay/common/relay_info.go b/relay/common/relay_info.go
index 99925dc5d..f4ffaee23 100644
--- a/relay/common/relay_info.go
+++ b/relay/common/relay_info.go
@@ -105,7 +105,8 @@ type RelayInfo struct {
 	UserQuota              int
 	RelayFormat            types.RelayFormat
 	SendResponseCount      int
-	FinalPreConsumedQuota  int // 最终预消耗的配额
+	FinalPreConsumedQuota  int  // 最终预消耗的配额
+	IsClaudeBetaQuery      bool // /v1/messages?beta=true
 
 	PriceData types.PriceData
 
@@ -279,6 +280,9 @@ func GenRelayInfoClaude(c *gin.Context, request dto.Request) *RelayInfo {
 	info.ClaudeConvertInfo = &ClaudeConvertInfo{
 		LastMessagesType: LastMessageTypeNone,
 	}
+	if c.Query("beta") == "true" {
+		info.IsClaudeBetaQuery = true
+	}
 	return info
 }