diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 3e9af1b3..fbd9082d 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.4.0"
+  ".": "1.5.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index fdb7ef30..38eac257 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 97
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-4865dda2b62927bd141cbc85f81be3d88602f103e2c581e15eb1caded3e3aaa2.yml
-openapi_spec_hash: 7d14a9b23ef4ac93ea46d629601b6f6b
-config_hash: ed1e6b3c5f93d12b80d31167f55c557c
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-3ae9c18dd7ccfc3ac5206f24394665f563a19015cfa8847b2801a2694d012abc.yml
+openapi_spec_hash: 48175b03b58805cd5c80793c66fd54e5
+config_hash: 4caff63b74a41f71006987db702f2918
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 520b7145..5b37ead2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.5.0 (2025-06-10)
+
+Full Changelog: [v1.4.0...v1.5.0](https://github.com/openai/openai-go/compare/v1.4.0...v1.5.0)
+
+### Features
+
+* **api:** Add o3-pro model IDs ([3bbd0b8](https://github.com/openai/openai-go/commit/3bbd0b8f09030a6c571900d444742c4fc2a3c211))
+
 ## 1.4.0 (2025-06-09)
 
 Full Changelog: [v1.3.0...v1.4.0](https://github.com/openai/openai-go/compare/v1.3.0...v1.4.0)
diff --git a/README.md b/README.md
index 33d706f8..06c306b7 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/openai/openai-go@v1.4.0'
+go get -u 'github.com/openai/openai-go@v1.5.0'
 ```
 
 <!-- x-release-please-end -->
diff --git a/aliases.go b/aliases.go
index 9ffc4da7..b70b25bb 100644
--- a/aliases.go
+++ b/aliases.go
@@ -415,6 +415,12 @@ const ResponsesModelO1Pro = shared.ResponsesModelO1Pro
 // Equals "o1-pro-2025-03-19"
 const ResponsesModelO1Pro2025_03_19 = shared.ResponsesModelO1Pro2025_03_19
 
+// Equals "o3-pro"
+const ResponsesModelO3Pro = shared.ResponsesModelO3Pro
+
+// Equals "o3-pro-2025-06-10"
+const ResponsesModelO3Pro2025_06_10 = shared.ResponsesModelO3Pro2025_06_10
+
 // Equals "computer-use-preview"
 const ResponsesModelComputerUsePreview = shared.ResponsesModelComputerUsePreview
 
diff --git a/internal/version.go b/internal/version.go
index 02bfc38c..7147b22a 100644
--- a/internal/version.go
+++ b/internal/version.go
@@ -2,4 +2,4 @@
 
 package internal
 
-const PackageVersion = "1.4.0" // x-release-please-version
+const PackageVersion = "1.5.0" // x-release-please-version
diff --git a/responses/aliases.go b/responses/aliases.go
index aa0ba3c8..5ccbfeec 100644
--- a/responses/aliases.go
+++ b/responses/aliases.go
@@ -415,6 +415,12 @@ const ResponsesModelO1Pro = shared.ResponsesModelO1Pro
 // Equals "o1-pro-2025-03-19"
 const ResponsesModelO1Pro2025_03_19 = shared.ResponsesModelO1Pro2025_03_19
 
+// Equals "o3-pro"
+const ResponsesModelO3Pro = shared.ResponsesModelO3Pro
+
+// Equals "o3-pro-2025-06-10"
+const ResponsesModelO3Pro2025_06_10 = shared.ResponsesModelO3Pro2025_06_10
+
 // Equals "computer-use-preview"
 const ResponsesModelComputerUsePreview = shared.ResponsesModelComputerUsePreview
 
diff --git a/shared/shared.go b/shared/shared.go
index 077e25c2..77f116cc 100644
--- a/shared/shared.go
+++ b/shared/shared.go
@@ -784,6 +784,8 @@ func (r *ResponseFormatTextParam) UnmarshalJSON(data []byte) error {
 const (
 	ResponsesModelO1Pro                        ResponsesModel = "o1-pro"
 	ResponsesModelO1Pro2025_03_19              ResponsesModel = "o1-pro-2025-03-19"
+	ResponsesModelO3Pro                        ResponsesModel = "o3-pro"
+	ResponsesModelO3Pro2025_06_10              ResponsesModel = "o3-pro-2025-06-10"
 	ResponsesModelComputerUsePreview           ResponsesModel = "computer-use-preview"
 	ResponsesModelComputerUsePreview2025_03_11 ResponsesModel = "computer-use-preview-2025-03-11"
 	// Or some ...[ChatModel]