diff --git a/common/logger.go b/common/logger.go
index ac03bd1..a91c915 100644
--- a/common/logger.go
+++ b/common/logger.go
@@ -2,6 +2,7 @@ package common
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"github.com/gin-gonic/gin"
 	"io"
@@ -99,6 +100,7 @@ func LogQuota(quota int) string {
 	}
 }
 
+
 func LogQuotaF(quota float64) string {
 	if DisplayInCurrencyEnabled {
 		return fmt.Sprintf("＄%.6f 额度", quota/QuotaPerUnit)
@@ -106,3 +108,14 @@ func LogQuotaF(quota float64) string {
 		return fmt.Sprintf("%d 点额度", int64(quota))
 	}
 }
+
+
+// LogJson 仅供测试使用 only for test
+func LogJson(ctx context.Context, msg string, obj any) {
+	jsonStr, err := json.Marshal(obj)
+	if err != nil {
+		LogError(ctx, fmt.Sprintf("json marshal failed: %s", err.Error()))
+		return
+	}
+	LogInfo(ctx, fmt.Sprintf("%s | %s", msg, string(jsonStr)))
+}
diff --git a/controller/relay.go b/controller/relay.go
index 3a4ae72..0bbd409 100644
--- a/controller/relay.go
+++ b/controller/relay.go
@@ -124,7 +124,7 @@ func shouldRetry(c *gin.Context, channelId int, openaiErr *dto.OpenAIErrorWithSt
 
 func processChannelError(c *gin.Context, channelId int, err *dto.OpenAIErrorWithStatusCode) {
 	autoBan := c.GetBool("auto_ban")
-	common.LogError(c.Request.Context(), fmt.Sprintf("relay error (channel #%d): %s", channelId, err.Error.Message))
+	common.LogError(c.Request.Context(), fmt.Sprintf("relay error (channel #%d, status code: %d): %s", channelId, err.StatusCode, err.Error.Message))
 	if service.ShouldDisableChannel(&err.Error, err.StatusCode) && autoBan {
 		channelName := c.GetString("channel_name")
 		service.DisableChannel(channelId, channelName, err.Error.Message)
@@ -160,7 +160,7 @@ func RelayMidjourney(c *gin.Context) {
 			"code":        err.Code,
 		})
 		channelId := c.GetInt("channel_id")
-		common.SysError(fmt.Sprintf("relay error (channel #%d): %s", channelId, fmt.Sprintf("%s %s", err.Description, err.Result)))
+		common.LogError(c, fmt.Sprintf("relay error (channel #%d, status code %d): %s", channelId, statusCode, fmt.Sprintf("%s %s", err.Description, err.Result)))
 	}
 }
 
diff --git a/dto/text_response.go b/dto/text_response.go
index a589d75..53c87eb 100644
--- a/dto/text_response.go
+++ b/dto/text_response.go
@@ -54,17 +54,33 @@ type OpenAIEmbeddingResponse struct {
 }
 
 type ChatCompletionsStreamResponseChoice struct {
-	Delta        ChatCompletionsStreamResponseChoiceDelta `json:"delta"`
-	FinishReason *string                                  `json:"finish_reason,omitempty"`
-	Index        int                                      `json:"index,omitempty"`
+	Delta        ChatCompletionsStreamResponseChoiceDelta `json:"delta,omitempty"`
+	Logprobs     *any                                     `json:"logprobs"`
+	FinishReason *string                                  `json:"finish_reason"`
+	Index        int                                      `json:"index"`
 }
 
 type ChatCompletionsStreamResponseChoiceDelta struct {
-	Content   string     `json:"content"`
+	Content   *string    `json:"content,omitempty"`
 	Role      string     `json:"role,omitempty"`
 	ToolCalls []ToolCall `json:"tool_calls,omitempty"`
 }
 
+func (c *ChatCompletionsStreamResponseChoiceDelta) IsEmpty() bool {
+	return c.Content == nil && len(c.ToolCalls) == 0
+}
+
+func (c *ChatCompletionsStreamResponseChoiceDelta) SetContentString(s string) {
+	c.Content = &s
+}
+
+func (c *ChatCompletionsStreamResponseChoiceDelta) GetContentString() string {
+	if c.Content == nil {
+		return ""
+	}
+	return *c.Content
+}
+
 type ToolCall struct {
 	// Index is not nil only in chat completion chunk object
 	Index    *int         `json:"index,omitempty"`
@@ -80,11 +96,12 @@ type FunctionCall struct {
 }
 
 type ChatCompletionsStreamResponse struct {
-	Id      string                                `json:"id"`
-	Object  string                                `json:"object"`
-	Created int64                                 `json:"created"`
-	Model   string                                `json:"model"`
-	Choices []ChatCompletionsStreamResponseChoice `json:"choices"`
+	Id                string                                `json:"id"`
+	Object            string                                `json:"object"`
+	Created           int64                                 `json:"created"`
+	Model             string                                `json:"model"`
+	SystemFingerprint *string                               `json:"system_fingerprint"`
+	Choices           []ChatCompletionsStreamResponseChoice `json:"choices"`
 }
 
 type ChatCompletionsStreamResponseSimple struct {
diff --git a/relay/channel/ali/relay-ali.go b/relay/channel/ali/relay-ali.go
index e087eea..4280b1c 100644
--- a/relay/channel/ali/relay-ali.go
+++ b/relay/channel/ali/relay-ali.go
@@ -136,7 +136,7 @@ func responseAli2OpenAI(response *AliChatResponse) *dto.OpenAITextResponse {
 
 func streamResponseAli2OpenAI(aliResponse *AliChatResponse) *dto.ChatCompletionsStreamResponse {
 	var choice dto.ChatCompletionsStreamResponseChoice
-	choice.Delta.Content = aliResponse.Output.Text
+	choice.Delta.SetContentString(aliResponse.Output.Text)
 	if aliResponse.Output.FinishReason != "null" {
 		finishReason := aliResponse.Output.FinishReason
 		choice.FinishReason = &finishReason
@@ -199,7 +199,7 @@ func aliStreamHandler(c *gin.Context, resp *http.Response) (*dto.OpenAIErrorWith
 				usage.TotalTokens = aliResponse.Usage.InputTokens + aliResponse.Usage.OutputTokens
 			}
 			response := streamResponseAli2OpenAI(&aliResponse)
-			response.Choices[0].Delta.Content = strings.TrimPrefix(response.Choices[0].Delta.Content, lastResponseText)
+			response.Choices[0].Delta.SetContentString(strings.TrimPrefix(response.Choices[0].Delta.GetContentString(), lastResponseText))
 			lastResponseText = aliResponse.Output.Text
 			jsonResponse, err := json.Marshal(response)
 			if err != nil {
diff --git a/relay/channel/aws/relay-aws.go b/relay/channel/aws/relay-aws.go
index bf64f03..1438f10 100644
--- a/relay/channel/aws/relay-aws.go
+++ b/relay/channel/aws/relay-aws.go
@@ -156,6 +156,7 @@ func awsStreamHandler(c *gin.Context, info *relaycommon.RelayInfo, requestMode i
 	var usage relaymodel.Usage
 	var id string
 	var model string
+	createdTime := common.GetTimestamp()
 	c.Stream(func(w io.Writer) bool {
 		event, ok := <-stream.Events()
 		if !ok {
@@ -188,6 +189,7 @@ func awsStreamHandler(c *gin.Context, info *relaycommon.RelayInfo, requestMode i
 			if response.Model != "" {
 				model = response.Model
 			}
+			response.Created = createdTime
 			response.Id = id
 			response.Model = model
 
diff --git a/relay/channel/baidu/relay-baidu.go b/relay/channel/baidu/relay-baidu.go
index 6f773ba..f1ceab3 100644
--- a/relay/channel/baidu/relay-baidu.go
+++ b/relay/channel/baidu/relay-baidu.go
@@ -57,7 +57,7 @@ func responseBaidu2OpenAI(response *BaiduChatResponse) *dto.OpenAITextResponse {
 
 func streamResponseBaidu2OpenAI(baiduResponse *BaiduChatStreamResponse) *dto.ChatCompletionsStreamResponse {
 	var choice dto.ChatCompletionsStreamResponseChoice
-	choice.Delta.Content = baiduResponse.Result
+	choice.Delta.SetContentString(baiduResponse.Result)
 	if baiduResponse.IsEnd {
 		choice.FinishReason = &relaycommon.StopFinishReason
 	}
diff --git a/relay/channel/claude/relay-claude.go b/relay/channel/claude/relay-claude.go
index 33e742a..07767a4 100644
--- a/relay/channel/claude/relay-claude.go
+++ b/relay/channel/claude/relay-claude.go
@@ -73,13 +73,13 @@ func RequestOpenAI2ClaudeMessage(textRequest dto.GeneralOpenAIRequest) (*ClaudeR
 	formatMessages := make([]dto.Message, 0)
 	var lastMessage *dto.Message
 	for i, message := range textRequest.Messages {
-		if message.Role == "system" {
-			if i != 0 {
-				message.Role = "user"
-			}
-		}
+		//if message.Role == "system" {
+		//	if i != 0 {
+		//		message.Role = "user"
+		//	}
+		//}
 		if message.Role == "" {
-			message.Role = "user"
+			textRequest.Messages[i].Role = "user"
 		}
 		fmtMessage := dto.Message{
 			Role:    message.Role,
@@ -98,13 +98,24 @@ func RequestOpenAI2ClaudeMessage(textRequest dto.GeneralOpenAIRequest) (*ClaudeR
 			fmtMessage.Content = content
 		}
 		formatMessages = append(formatMessages, fmtMessage)
-		lastMessage = &message
+		lastMessage = &textRequest.Messages[i]
 	}
 
 	claudeMessages := make([]ClaudeMessage, 0)
 	for _, message := range formatMessages {
 		if message.Role == "system" {
-			claudeRequest.System = message.StringContent()
+			if message.IsStringContent() {
+				claudeRequest.System = message.StringContent()
+			} else {
+				contents := message.ParseContent()
+				content := ""
+				for _, ctx := range contents {
+					if ctx.Type == "text" {
+						content += ctx.Text
+					}
+				}
+				claudeRequest.System = content
+			}
 		} else {
 			claudeMessage := ClaudeMessage{
 				Role: message.Role,
@@ -149,7 +160,6 @@ func RequestOpenAI2ClaudeMessage(textRequest dto.GeneralOpenAIRequest) (*ClaudeR
 	}
 	claudeRequest.Prompt = ""
 	claudeRequest.Messages = claudeMessages
-
 	return &claudeRequest, nil
 }
 
@@ -161,7 +171,7 @@ func StreamResponseClaude2OpenAI(reqMode int, claudeResponse *ClaudeResponse) (*
 	response.Choices = make([]dto.ChatCompletionsStreamResponseChoice, 0)
 	var choice dto.ChatCompletionsStreamResponseChoice
 	if reqMode == RequestModeCompletion {
-		choice.Delta.Content = claudeResponse.Completion
+		choice.Delta.SetContentString(claudeResponse.Completion)
 		finishReason := stopReasonClaude2OpenAI(claudeResponse.StopReason)
 		if finishReason != "null" {
 			choice.FinishReason = &finishReason
@@ -171,9 +181,13 @@ func StreamResponseClaude2OpenAI(reqMode int, claudeResponse *ClaudeResponse) (*
 			response.Id = claudeResponse.Message.Id
 			response.Model = claudeResponse.Message.Model
 			claudeUsage = &claudeResponse.Message.Usage
+			choice.Delta.SetContentString("")
+			choice.Delta.Role = "assistant"
+		} else if claudeResponse.Type == "content_block_start" {
+			return nil, nil
 		} else if claudeResponse.Type == "content_block_delta" {
 			choice.Index = claudeResponse.Index
-			choice.Delta.Content = claudeResponse.Delta.Text
+			choice.Delta.SetContentString(claudeResponse.Delta.Text)
 		} else if claudeResponse.Type == "message_delta" {
 			finishReason := stopReasonClaude2OpenAI(*claudeResponse.Delta.StopReason)
 			if finishReason != "null" {
@@ -182,12 +196,15 @@ func StreamResponseClaude2OpenAI(reqMode int, claudeResponse *ClaudeResponse) (*
 			claudeUsage = &claudeResponse.Usage
 		} else if claudeResponse.Type == "message_stop" {
 			return nil, nil
+		} else {
+			return nil, nil
 		}
 	}
 	if claudeUsage == nil {
 		claudeUsage = &ClaudeUsage{}
 	}
 	response.Choices = append(response.Choices, choice)
+
 	return &response, claudeUsage
 }
 
diff --git a/relay/channel/cohere/relay-cohere.go b/relay/channel/cohere/relay-cohere.go
index a21d4a9..463e8b1 100644
--- a/relay/channel/cohere/relay-cohere.go
+++ b/relay/channel/cohere/relay-cohere.go
@@ -117,7 +117,7 @@ func cohereStreamHandler(c *gin.Context, resp *http.Response, modelName string,
 					{
 						Delta: dto.ChatCompletionsStreamResponseChoiceDelta{
 							Role:    "assistant",
-							Content: cohereResp.Text,
+							Content: &cohereResp.Text,
 						},
 						Index: 0,
 					},
diff --git a/relay/channel/gemini/relay-gemini.go b/relay/channel/gemini/relay-gemini.go
index 4a10a73..ee9301d 100644
--- a/relay/channel/gemini/relay-gemini.go
+++ b/relay/channel/gemini/relay-gemini.go
@@ -151,7 +151,7 @@ func responseGeminiChat2OpenAI(response *GeminiChatResponse) *dto.OpenAITextResp
 
 func streamResponseGeminiChat2OpenAI(geminiResponse *GeminiChatResponse) *dto.ChatCompletionsStreamResponse {
 	var choice dto.ChatCompletionsStreamResponseChoice
-	choice.Delta.Content = geminiResponse.GetResponseText()
+	choice.Delta.SetContentString(geminiResponse.GetResponseText())
 	choice.FinishReason = &relaycommon.StopFinishReason
 	var response dto.ChatCompletionsStreamResponse
 	response.Object = "chat.completion.chunk"
@@ -203,7 +203,7 @@ func geminiChatStreamHandler(c *gin.Context, resp *http.Response) (*dto.OpenAIEr
 			err := json.Unmarshal([]byte(data), &dummy)
 			responseText += dummy.Content
 			var choice dto.ChatCompletionsStreamResponseChoice
-			choice.Delta.Content = dummy.Content
+			choice.Delta.SetContentString(dummy.Content)
 			response := dto.ChatCompletionsStreamResponse{
 				Id:      fmt.Sprintf("chatcmpl-%s", common.GetUUID()),
 				Object:  "chat.completion.chunk",
diff --git a/relay/channel/openai/relay-openai.go b/relay/channel/openai/relay-openai.go
index 5469ed7..d627575 100644
--- a/relay/channel/openai/relay-openai.go
+++ b/relay/channel/openai/relay-openai.go
@@ -68,7 +68,7 @@ func OpenaiStreamHandler(c *gin.Context, resp *http.Response, relayMode int) (*d
 					err := json.Unmarshal(common.StringToByteSlice(item), &streamResponse)
 					if err == nil {
 						for _, choice := range streamResponse.Choices {
-							responseTextBuilder.WriteString(choice.Delta.Content)
+							responseTextBuilder.WriteString(choice.Delta.GetContentString())
 							if choice.Delta.ToolCalls != nil {
 								if len(choice.Delta.ToolCalls) > toolCount {
 									toolCount = len(choice.Delta.ToolCalls)
@@ -84,7 +84,7 @@ func OpenaiStreamHandler(c *gin.Context, resp *http.Response, relayMode int) (*d
 			} else {
 				for _, streamResponse := range streamResponses {
 					for _, choice := range streamResponse.Choices {
-						responseTextBuilder.WriteString(choice.Delta.Content)
+						responseTextBuilder.WriteString(choice.Delta.GetContentString())
 						if choice.Delta.ToolCalls != nil {
 							if len(choice.Delta.ToolCalls) > toolCount {
 								toolCount = len(choice.Delta.ToolCalls)
diff --git a/relay/channel/palm/relay-palm.go b/relay/channel/palm/relay-palm.go
index 3a7d4fa..6933d6f 100644
--- a/relay/channel/palm/relay-palm.go
+++ b/relay/channel/palm/relay-palm.go
@@ -61,7 +61,7 @@ func responsePaLM2OpenAI(response *PaLMChatResponse) *dto.OpenAITextResponse {
 func streamResponsePaLM2OpenAI(palmResponse *PaLMChatResponse) *dto.ChatCompletionsStreamResponse {
 	var choice dto.ChatCompletionsStreamResponseChoice
 	if len(palmResponse.Candidates) > 0 {
-		choice.Delta.Content = palmResponse.Candidates[0].Content
+		choice.Delta.SetContentString(palmResponse.Candidates[0].Content)
 	}
 	choice.FinishReason = &relaycommon.StopFinishReason
 	var response dto.ChatCompletionsStreamResponse
diff --git a/relay/channel/tencent/relay-tencent.go b/relay/channel/tencent/relay-tencent.go
index 6f4cd91..c22b545 100644
--- a/relay/channel/tencent/relay-tencent.go
+++ b/relay/channel/tencent/relay-tencent.go
@@ -86,7 +86,7 @@ func streamResponseTencent2OpenAI(TencentResponse *TencentChatResponse) *dto.Cha
 	}
 	if len(TencentResponse.Choices) > 0 {
 		var choice dto.ChatCompletionsStreamResponseChoice
-		choice.Delta.Content = TencentResponse.Choices[0].Delta.Content
+		choice.Delta.SetContentString(TencentResponse.Choices[0].Delta.Content)
 		if TencentResponse.Choices[0].FinishReason == "stop" {
 			choice.FinishReason = &relaycommon.StopFinishReason
 		}
@@ -138,7 +138,7 @@ func tencentStreamHandler(c *gin.Context, resp *http.Response) (*dto.OpenAIError
 			}
 			response := streamResponseTencent2OpenAI(&TencentResponse)
 			if len(response.Choices) != 0 {
-				responseText += response.Choices[0].Delta.Content
+				responseText += response.Choices[0].Delta.GetContentString()
 			}
 			jsonResponse, err := json.Marshal(response)
 			if err != nil {
diff --git a/relay/channel/xunfei/relay-xunfei.go b/relay/channel/xunfei/relay-xunfei.go
index 1690e96..7cb6c8a 100644
--- a/relay/channel/xunfei/relay-xunfei.go
+++ b/relay/channel/xunfei/relay-xunfei.go
@@ -87,7 +87,7 @@ func streamResponseXunfei2OpenAI(xunfeiResponse *XunfeiChatResponse) *dto.ChatCo
 		}
 	}
 	var choice dto.ChatCompletionsStreamResponseChoice
-	choice.Delta.Content = xunfeiResponse.Payload.Choices.Text[0].Content
+	choice.Delta.SetContentString(xunfeiResponse.Payload.Choices.Text[0].Content)
 	if xunfeiResponse.Payload.Choices.Status == 2 {
 		choice.FinishReason = &relaycommon.StopFinishReason
 	}
diff --git a/relay/channel/zhipu/relay-zhipu.go b/relay/channel/zhipu/relay-zhipu.go
index 8a54842..5ef9d7a 100644
--- a/relay/channel/zhipu/relay-zhipu.go
+++ b/relay/channel/zhipu/relay-zhipu.go
@@ -126,7 +126,7 @@ func responseZhipu2OpenAI(response *ZhipuResponse) *dto.OpenAITextResponse {
 
 func streamResponseZhipu2OpenAI(zhipuResponse string) *dto.ChatCompletionsStreamResponse {
 	var choice dto.ChatCompletionsStreamResponseChoice
-	choice.Delta.Content = zhipuResponse
+	choice.Delta.SetContentString(zhipuResponse)
 	response := dto.ChatCompletionsStreamResponse{
 		Object:  "chat.completion.chunk",
 		Created: common.GetTimestamp(),
@@ -138,7 +138,7 @@ func streamResponseZhipu2OpenAI(zhipuResponse string) *dto.ChatCompletionsStream
 
 func streamMetaResponseZhipu2OpenAI(zhipuResponse *ZhipuStreamMetaResponse) (*dto.ChatCompletionsStreamResponse, *dto.Usage) {
 	var choice dto.ChatCompletionsStreamResponseChoice
-	choice.Delta.Content = ""
+	choice.Delta.SetContentString("")
 	choice.FinishReason = &relaycommon.StopFinishReason
 	response := dto.ChatCompletionsStreamResponse{
 		Id:      zhipuResponse.RequestId,
diff --git a/service/token_counter.go b/service/token_counter.go
index 18fc5a3..29da0f2 100644
--- a/service/token_counter.go
+++ b/service/token_counter.go
@@ -232,7 +232,7 @@ func CountTokenInput(input any, model string, check bool) (int, error, bool) {
 func CountTokenStreamChoices(messages []dto.ChatCompletionsStreamResponseChoice, model string) int {
 	tokens := 0
 	for _, message := range messages {
-		tkm, _, _ := CountTokenInput(message.Delta.Content, model, false)
+		tkm, _, _ := CountTokenInput(message.Delta.GetContentString(), model, false)
 		tokens += tkm
 		if message.Delta.ToolCalls != nil {
 			for _, tool := range message.Delta.ToolCalls {