diff --git a/dto/claude.go b/dto/claude.go
index ea099df4..7b5f348e 100644
--- a/dto/claude.go
+++ b/dto/claude.go
@@ -361,7 +361,7 @@ type ClaudeUsage struct {
 	CacheCreationInputTokens int                  `json:"cache_creation_input_tokens"`
 	CacheReadInputTokens     int                  `json:"cache_read_input_tokens"`
 	OutputTokens             int                  `json:"output_tokens"`
-	ServerToolUse            *ClaudeServerToolUse `json:"server_tool_use"`
+	ServerToolUse            *ClaudeServerToolUse `json:"server_tool_use,omitempty"`
 }
 
 type ClaudeServerToolUse struct {
diff --git a/relay/channel/deepseek/adaptor.go b/relay/channel/deepseek/adaptor.go
index ac8ea18f..be8de0c8 100644
--- a/relay/channel/deepseek/adaptor.go
+++ b/relay/channel/deepseek/adaptor.go
@@ -24,10 +24,9 @@ func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dt
 	return nil, errors.New("not implemented")
 }
 
-func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
-	//TODO implement me
-	panic("implement me")
-	return nil, nil
+func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, req *dto.ClaudeRequest) (any, error) {
+	adaptor := openai.Adaptor{}
+	return adaptor.ConvertClaudeRequest(c, info, req)
 }
 
 func (a *Adaptor) ConvertAudioRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.AudioRequest) (io.Reader, error) {
diff --git a/service/convert.go b/service/convert.go
index ee8ecee5..967e4682 100644
--- a/service/convert.go
+++ b/service/convert.go
@@ -283,7 +283,9 @@ func StreamResponseOpenAI2Claude(openAIResponse *dto.ChatCompletionsStreamRespon
 		if chosenChoice.FinishReason != nil && *chosenChoice.FinishReason != "" {
 			// should be done
 			info.FinishReason = *chosenChoice.FinishReason
-			return claudeResponses
+			if !info.Done {
+				return claudeResponses
+			}
 		}
 		if info.Done {
 			claudeResponses = append(claudeResponses, generateStopBlock(info.ClaudeConvertInfo.Index))
@@ -432,6 +434,8 @@ func stopReasonOpenAI2Claude(reason string) string {
 		return "end_turn"
 	case "stop_sequence":
 		return "stop_sequence"
+	case "length":
+		fallthrough
 	case "max_tokens":
 		return "max_tokens"
 	case "tool_calls":