diff --git a/server/model/app/response/ai_claude.go b/server/model/app/response/ai_claude.go
index 443db4c..c02c320 100644
--- a/server/model/app/response/ai_claude.go
+++ b/server/model/app/response/ai_claude.go
@@ -10,6 +10,8 @@ type ClaudeMessageResponse struct {
 	StopReason   string               `json:"stop_reason,omitempty"` // end_turn, max_tokens, stop_sequence
 	StopSequence string               `json:"stop_sequence,omitempty"`
 	Usage        ClaudeUsage          `json:"usage"`
+	// 统一格式的用量统计（与 OpenAI chat.completions 对齐）
+	StandardUsage *ChatCompletionUsage `json:"standard_usage,omitempty"`
 }
 
 type ClaudeContentBlock struct {
diff --git a/server/model/app/response/ai_proxy.go b/server/model/app/response/ai_proxy.go
index cbc9035..d4f5938 100644
--- a/server/model/app/response/ai_proxy.go
+++ b/server/model/app/response/ai_proxy.go
@@ -8,6 +8,8 @@ type ChatCompletionResponse struct {
 	Model   string                 `json:"model"`
 	Choices []ChatCompletionChoice `json:"choices"`
 	Usage   ChatCompletionUsage    `json:"usage"`
+	// 统一格式的用量统计（用于各种上游的标准化）
+	StandardUsage *ChatCompletionUsage `json:"standard_usage,omitempty"`
 	// 扩展字段：正则脚本执行日志
 	RegexLogs *RegexExecutionLogs `json:"regex_logs,omitempty"`
 }
diff --git a/server/service/app/ai_claude.go b/server/service/app/ai_claude.go
index d0e0763..0d3e395 100644
--- a/server/service/app/ai_claude.go
+++ b/server/service/app/ai_claude.go
@@ -49,6 +49,13 @@ func (s *AiProxyService) ProcessClaudeMessage(ctx context.Context, req *request.
 		resp.Content[0].Text = injector.ProcessResponse(resp.Content[0].Text)
 	}
 
+	// 5. 统一填充 standard_usage，转换为 OpenAI 风格的用量统计
+	resp.StandardUsage = &response.ChatCompletionUsage{
+		PromptTokens:     resp.Usage.InputTokens,
+		CompletionTokens: resp.Usage.OutputTokens,
+		TotalTokens:      resp.Usage.InputTokens + resp.Usage.OutputTokens,
+	}
+
 	return resp, nil
 }
 
diff --git a/server/service/app/ai_proxy.go b/server/service/app/ai_proxy.go
index 592f805..5bf120c 100644
--- a/server/service/app/ai_proxy.go
+++ b/server/service/app/ai_proxy.go
@@ -48,6 +48,15 @@ func (s *AiProxyService) ProcessChatCompletion(ctx context.Context, req *request
 	}
 
 	// 4. 处理响应并收集正则日志
+	if resp != nil {
+		// 统一填充 standard_usage，方便上游使用统一格式解析
+		resp.StandardUsage = &response.ChatCompletionUsage{
+			PromptTokens:     resp.Usage.PromptTokens,
+			CompletionTokens: resp.Usage.CompletionTokens,
+			TotalTokens:      resp.Usage.TotalTokens,
+		}
+	}
+
 	if preset != nil && injector != nil && len(resp.Choices) > 0 {
 		resp.Choices[0].Message.Content = injector.ProcessResponse(resp.Choices[0].Message.Content)