diff --git a/packages/vertex-sdk/README.md b/packages/vertex-sdk/README.md
index ca0c1d39..6e63a8c5 100644
--- a/packages/vertex-sdk/README.md
+++ b/packages/vertex-sdk/README.md
@@ -1,11 +1,8 @@
 # Anthropic Vertex TypeScript API Library
 
-> [!IMPORTANT]
-> This API is in private preview.
-
 [![NPM version](https://img.shields.io/npm/v/@anthropic-ai/vertex-sdk.svg)](https://npmjs.org/package/@anthropic-ai/vertex-sdk)
 
-This library provides convenient access to the private preview of the Anthropic Vertex API.
+This library provides convenient access to the Anthropic Vertex API.
 
 For the non-Vertex Anthropic API at api.anthropic.com, see [`@anthropic-ai/sdk`](https://github.com/anthropics/anthropic-sdk-typescript).
 
diff --git a/packages/vertex-sdk/src/client.ts b/packages/vertex-sdk/src/client.ts
index eb60436b..6328d2b3 100644
--- a/packages/vertex-sdk/src/client.ts
+++ b/packages/vertex-sdk/src/client.ts
@@ -5,7 +5,6 @@ import { type RequestInit } from '@anthropic-ai/sdk/_shims/index';
 import { GoogleAuth } from 'google-auth-library';
 
 const DEFAULT_VERSION = 'vertex-2023-10-16';
-const DEFAULT_BETA_TYPES = ['private-messages-testing'];
 
 export type ClientOptions = Omit<API.ClientOptions, 'apiKey' | 'authToken'> & {
   region?: string | null | undefined;
@@ -117,9 +116,6 @@ export class AnthropicVertex extends Core.APIClient {
       if (!options.body['anthropic_version']) {
         options.body['anthropic_version'] = DEFAULT_VERSION;
       }
-      if (!options.body['anthropic_beta']) {
-        options.body['anthropic_beta'] = DEFAULT_BETA_TYPES;
-      }
     }
 
     if (options.path === '/v1/messages' && options.method === 'post') {