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15 changes: 12 additions & 3 deletions src/router/errorDetector.ts
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,10 @@ export class ErrorDetector {
case 403:
return "access_denied";
case 400:
// 400 can be context overflow or other issues
// Body may contain a specific error code (e.g. context_length_exceeded)
if (this.isApiError(error)) {
return this.classifyApiError(error);
}
return "unknown";
default:
return "unknown";
Expand Down Expand Up @@ -159,10 +162,16 @@ export class ErrorDetector {
const errorType = data.error?.type || data.type || "";
const errorCode = data.error?.code || data.code || "";

const lowerMessage = errorMessage.toLowerCase();

return (
errorType === "invalid_request_error" &&
(errorCode === "context_length_exceeded" ||
errorMessage.toLowerCase().includes("context"))
(
errorCode === "context_length_exceeded" ||
lowerMessage.includes("context") ||
lowerMessage.includes("too long") ||
lowerMessage.includes("maximum")
)
);
}

Expand Down