diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e203932a5..63a3704d8 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.18.1"
+  ".": "5.19.0"
 }
diff --git a/.stats.yml b/.stats.yml
index 41379b009..c41be6ee5 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 118
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-f312a661d9dd6b5d6d676e449c357f6414afd1fdaaf4d982d44ad86cba5c5f6e.yml
-openapi_spec_hash: b62fd3d3fb98e37b1da0a2e22af51d40
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-51afd6abbcb18c3086f62993f9379c18443b9e516cbc0548ddfb932e835657f8.yml
+openapi_spec_hash: dae6afeaefa15cb8700c7a870531e06f
 config_hash: b854932c0ea24b400bdd64e4376936bd
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7322838f..3ddbf18dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 5.19.0 (2025-09-03)
+
+Full Changelog: [v5.18.1...v5.19.0](https://github.com/openai/openai-node/compare/v5.18.1...v5.19.0)
+
+### Features
+
+* **api:** Add gpt-realtime models ([256d932](https://github.com/openai/openai-node/commit/256d93247da7f31e34f5f80d8added0bc6f52fe9))
+
 ## 5.18.1 (2025-09-02)
 
 Full Changelog: [v5.18.0...v5.18.1](https://github.com/openai/openai-node/compare/v5.18.0...v5.18.1)
diff --git a/jsr.json b/jsr.json
index 44b7c1d92..968472c49 100644
--- a/jsr.json
+++ b/jsr.json
@@ -1,6 +1,6 @@
 {
   "name": "@openai/openai",
-  "version": "5.18.1",
+  "version": "5.19.0",
   "exports": {
     ".": "./index.ts",
     "./helpers/zod": "./helpers/zod.ts",
diff --git a/package.json b/package.json
index b609ab19e..7f78591e8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openai",
-  "version": "5.18.1",
+  "version": "5.19.0",
   "description": "The official TypeScript library for the OpenAI API",
   "author": "OpenAI <support@openai.com>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/realtime/realtime.ts b/src/resources/realtime/realtime.ts
index 562b2d739..e05f4fb6d 100644
--- a/src/resources/realtime/realtime.ts
+++ b/src/resources/realtime/realtime.ts
@@ -2218,6 +2218,8 @@ export interface RealtimeSession {
    * The Realtime model used for this session.
    */
   model?:
+    | 'gpt-realtime'
+    | 'gpt-realtime-2025-08-28'
     | 'gpt-4o-realtime-preview'
     | 'gpt-4o-realtime-preview-2024-10-01'
     | 'gpt-4o-realtime-preview-2024-12-17'
@@ -2480,6 +2482,8 @@ export interface RealtimeSessionCreateRequest {
    */
   model:
     | (string & {})
+    | 'gpt-realtime'
+    | 'gpt-realtime-2025-08-28'
     | 'gpt-4o-realtime'
     | 'gpt-4o-mini-realtime'
     | 'gpt-4o-realtime-preview'
diff --git a/src/version.ts b/src/version.ts
index dd1c21710..6bd23c18e 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '5.18.1'; // x-release-please-version
+export const VERSION = '5.19.0'; // x-release-please-version