| 400 | BadRequest | 2001 | 具体的错误信息 | LLM宽泛的错误，未具体分类的错误 |
| 424 | FailedDependency | 2002 | 具体的错误信息 | 下游模型不可用 5xx |
| 424 | FailedDependency | 2003 | 具体的错误信息 | 下游模型超时 |
| 400 | BadRequest | 2004 | 具体的错误信息 | 模型参数错误 |
| 400 | BadRequest | 2005 | 具体的错误信息 | 请求参数解析失败 |
| 424 | FailedDependency | 2006 | 具体的错误信息 | 响应解析失败 |
| 429 | TooManyRequests | 2007 | 具体的错误信息 | 模型RPM限制达到 |
| 429 | TooManyRequests | 2008 | 具体的错误信息 | 模型TPM限制达到 |
| 401 | Unauthorized | 2101 | The API key in the request is missing or invalid | 请求携带的 API Key 校验未通过 |
| 403 | Forbidden | 2102 | you do not have access to the requested model | 没有权限访问模型 |
| 403 | Forbidden | 2103 | your account has an overdue balance | 当前账号欠费 |
| 400 | BadRequest | 2104 | specified model is not found | 模型不存在 |
| 500 | InternalServerError | 2105 | internal server error | 内部错误，联系tokenops |
| 499 | ClientClosedRequest | 2106 | client closed request | 客户端取消 |
