diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 10a72c4fa..47a7d26b6 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.76.1"
+  ".": "4.76.2"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7ea1f7f7f..27946ddea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 4.76.2 (2024-12-12)
+
+Full Changelog: [v4.76.1...v4.76.2](https://github.com/openai/openai-node/compare/v4.76.1...v4.76.2)
+
+### Chores
+
+* **internal:** update isAbsoluteURL ([#1223](https://github.com/openai/openai-node/issues/1223)) ([e908ed7](https://github.com/openai/openai-node/commit/e908ed759996fb7706baf46d094fc77419423971))
+* **types:** nicer error class types + jsdocs ([#1219](https://github.com/openai/openai-node/issues/1219)) ([576d24c](https://github.com/openai/openai-node/commit/576d24cc4b3d766dfe28a6031bdc24ac1b711655))
+
 ## 4.76.1 (2024-12-10)
 
 Full Changelog: [v4.76.0...v4.76.1](https://github.com/openai/openai-node/compare/v4.76.0...v4.76.1)
diff --git a/jsr.json b/jsr.json
index 3fa6b07da..101edee15 100644
--- a/jsr.json
+++ b/jsr.json
@@ -1,6 +1,6 @@
 {
   "name": "@openai/openai",
-  "version": "4.76.1",
+  "version": "4.76.2",
   "exports": "./index.ts",
   "publish": {
     "exclude": [
diff --git a/package.json b/package.json
index ddffb2c6a..53b82f070 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openai",
-  "version": "4.76.1",
+  "version": "4.76.2",
   "description": "The official TypeScript library for the OpenAI API",
   "author": "OpenAI <support@openai.com>",
   "types": "dist/index.d.ts",
diff --git a/src/core.ts b/src/core.ts
index 803496412..e1a93f272 100644
--- a/src/core.ts
+++ b/src/core.ts
@@ -1013,8 +1013,8 @@ export const safeJSON = (text: string) => {
   }
 };
 
-// https://stackoverflow.com/a/19709846
-const startsWithSchemeRegexp = new RegExp('^(?:[a-z]+:)?//', 'i');
+// https://url.spec.whatwg.org/#url-scheme-string
+const startsWithSchemeRegexp = /^[a-z][a-z0-9+.-]*:/i;
 const isAbsoluteURL = (url: string): boolean => {
   return startsWithSchemeRegexp.test(url);
 };
diff --git a/src/error.ts b/src/error.ts
index 72b4f7bfd..f3dc57610 100644
--- a/src/error.ts
+++ b/src/error.ts
@@ -4,10 +4,17 @@ import { castToError, Headers } from './core';
 
 export class OpenAIError extends Error {}
 
-export class APIError extends OpenAIError {
-  readonly status: number | undefined;
-  readonly headers: Headers | undefined;
-  readonly error: Object | undefined;
+export class APIError<
+  TStatus extends number | undefined = number | undefined,
+  THeaders extends Headers | undefined = Headers | undefined,
+  TError extends Object | undefined = Object | undefined,
+> extends OpenAIError {
+  /** HTTP status for the response that caused the error */
+  readonly status: TStatus;
+  /** HTTP headers for the response that caused the error */
+  readonly headers: THeaders;
+  /** JSON body of the response that caused the error */
+  readonly error: TError;
 
   readonly code: string | null | undefined;
   readonly param: string | null | undefined;
@@ -15,19 +22,14 @@ export class APIError extends OpenAIError {
 
   readonly request_id: string | null | undefined;
 
-  constructor(
-    status: number | undefined,
-    error: Object | undefined,
-    message: string | undefined,
-    headers: Headers | undefined,
-  ) {
+  constructor(status: TStatus, error: TError, message: string | undefined, headers: THeaders) {
     super(`${APIError.makeMessage(status, error, message)}`);
     this.status = status;
     this.headers = headers;
     this.request_id = headers?.['x-request-id'];
+    this.error = error;
 
     const data = error as Record<string, any>;
-    this.error = data;
     this.code = data?.['code'];
     this.param = data?.['param'];
     this.type = data?.['type'];
@@ -60,7 +62,7 @@ export class APIError extends OpenAIError {
     message: string | undefined,
     headers: Headers | undefined,
   ): APIError {
-    if (!status) {
+    if (!status || !headers) {
       return new APIConnectionError({ message, cause: castToError(errorResponse) });
     }
 
@@ -102,17 +104,13 @@ export class APIError extends OpenAIError {
   }
 }
 
-export class APIUserAbortError extends APIError {
-  override readonly status: undefined = undefined;
-
+export class APIUserAbortError extends APIError<undefined, undefined, undefined> {
   constructor({ message }: { message?: string } = {}) {
     super(undefined, undefined, message || 'Request was aborted.', undefined);
   }
 }
 
-export class APIConnectionError extends APIError {
-  override readonly status: undefined = undefined;
-
+export class APIConnectionError extends APIError<undefined, undefined, undefined> {
   constructor({ message, cause }: { message?: string | undefined; cause?: Error | undefined }) {
     super(undefined, undefined, message || 'Connection error.', undefined);
     // in some environments the 'cause' property is already declared
@@ -127,35 +125,21 @@ export class APIConnectionTimeoutError extends APIConnectionError {
   }
 }
 
-export class BadRequestError extends APIError {
-  override readonly status: 400 = 400;
-}
+export class BadRequestError extends APIError<400, Headers> {}
 
-export class AuthenticationError extends APIError {
-  override readonly status: 401 = 401;
-}
+export class AuthenticationError extends APIError<401, Headers> {}
 
-export class PermissionDeniedError extends APIError {
-  override readonly status: 403 = 403;
-}
+export class PermissionDeniedError extends APIError<403, Headers> {}
 
-export class NotFoundError extends APIError {
-  override readonly status: 404 = 404;
-}
+export class NotFoundError extends APIError<404, Headers> {}
 
-export class ConflictError extends APIError {
-  override readonly status: 409 = 409;
-}
+export class ConflictError extends APIError<409, Headers> {}
 
-export class UnprocessableEntityError extends APIError {
-  override readonly status: 422 = 422;
-}
+export class UnprocessableEntityError extends APIError<422, Headers> {}
 
-export class RateLimitError extends APIError {
-  override readonly status: 429 = 429;
-}
+export class RateLimitError extends APIError<429, Headers> {}
 
-export class InternalServerError extends APIError {}
+export class InternalServerError extends APIError<number, Headers> {}
 
 export class LengthFinishReasonError extends OpenAIError {
   constructor() {
diff --git a/src/version.ts b/src/version.ts
index 4f8b7224e..7117b1feb 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '4.76.1'; // x-release-please-version
+export const VERSION = '4.76.2'; // x-release-please-version