[bug] 使用openai compatible 接口，无法对token进行计费

[ZakiLiu]

使用最新版本，测试发现无法统计输入输出token，返回体中有usage字段。

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---

⚠️ Possible Duplicate Issue

• [bug] 使用openai compatible 接口，无法对token进行计费 #700

---

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[github-actions]

感谢您报告此问题。

分析

根据对代码库的分析，我找到了可能的原因：

当您使用 OpenAI compatible 接口 (/v1/chat/completions) 访问时，系统会按以下流程处理响应中的 token 统计信息。

Token 统计提取代码：

系统在 src/app/v1/_lib/proxy/response-handler.ts 中有完整的 usage 解析逻辑（第1470-1671行）：

1. JSON 响应解析：

   • src/app/v1/_lib/proxy/response-handler.ts:1505-1531 - 尝试解析 response.usage、response.usageMetadata（Gemini格式）、response.response.usage（包装格式）

2. SSE 流式响应解析：

   • src/app/v1/_lib/proxy/response-handler.ts:1554-1668 - 从 SSE 事件流中提取 usage

3. 支持的 usage 字段格式：

   • 标准 OpenAI 格式：{prompt_tokens, completion_tokens, total_tokens}
   • Claude 格式：{input_tokens, output_tokens, cache_creation_input_tokens, cache_read_input_tokens}
   • Gemini 格式：{promptTokenCount, candidatesTokenCount, cachedContentTokenCount}

可能的原因

基于您的截图显示响应中确实有 usage 字段，以下是几种可能导致解析失败的情况：

1. 响应格式异常

如果您使用的提供商返回的 usage 字段在非标准位置（例如嵌套在其他对象中），解析器可能无法识别。

诊断方法：
请检查返回的完整响应体结构，确认 usage 字段位于以下位置之一：

• 顶层：{"usage": {...}}
• response包装：{"response": {"usage": {...}}}
• output数组：{"output": [{"usage": {...}}]}
• SSE流中：data: {"usage": {...}}

2. 提供商类型配置不匹配

如果您在管理面板中配置的 provider type 不是 "openai-compatible"，可能会导致转换器使用错误的解析逻辑。

验证方法：

• 进入管理后台的供应商管理页面
• 检查该供应商的 Provider Type 是否设置为 "openai-compatible"

3. Usage 字段值为 null 或缺少必需字段

解析器需要至少一个有效的 token 数值才能提取 usage。如果 usage 对象中所有字段都是 null 或 undefined，会被判定为无效。

根据 response-handler.ts:1261-1468 的 extractUsageMetrics 函数，只要以下任一字段有效即可：

• input_tokens 或 promptTokenCount（输入token）
• output_tokens 或 candidatesTokenCount（输出token）
• cache_creation_input_tokens（缓存创建token）
• cache_read_input_tokens（缓存读取token）

诊断步骤

为了进一步诊断此问题，请提供以下信息：

• 您使用的提供商名称和配置的 Provider Type
• 完整的响应体示例（JSON格式，可以遮盖敏感内容）
• 是否使用 流式 (stream: true) 还是非流式请求
• 在日志页面（Dashboard → Logs）中，该请求的详细信息是什么（特别是 status_code 和 provider_chain）

相关代码位置

核心 usage 解析逻辑：

• src/app/v1/_lib/proxy/response-handler.ts:1470-1671 - parseUsageFromResponseText 函数
• src/app/v1/_lib/proxy/response-handler.ts:1261-1468 - extractUsageMetrics 函数

OpenAI compatible 响应转换：

• src/app/v1/_lib/converters/codex-to-openai/response.ts:448-491 - buildUsagePayload 函数（Codex→OpenAI）

成本计算逻辑：

• src/app/v1/_lib/proxy/response-handler.ts:1706-1838 - updateRequestCostFromUsage 函数
• src/lib/utils/cost-calculation.ts - 成本计算工具

已知问题

注意：此问题与 #700 类似，但如果您确认响应中有 usage 字段，则不是功能缺失，而是解析逻辑的 bug。

如果您能提供上述诊断信息，我们可以更准确地定位问题根源。

---

Automated response from Claude AI

[ZakiLiu]

以下是请求：
{
"model": "gpt-5.2-codex",
"messages": [
{
"role": "user",
"content": "[REDACTED]"
},
{
"role": "assistant",
"content": "[REDACTED]"
},
{
"role": "user",
"content": "[REDACTED]"
},
{
"role": "assistant",
"content": "[REDACTED]"
},
{
"role": "user",
"content": "[REDACTED]"
},
{
"role": "assistant",
"content": "[REDACTED]"
},
{
"role": "user",
"content": "[REDACTED]"
}
],
"stream": true,
"stream_options": {
"include_usage": true
}
}

以下是响应回复：

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data: [DONE]