diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6e59bb3fa..2ed1eead8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,7 +3,6 @@ on:
   push:
     branches:
       - master
-      - update-specs
   pull_request:
     branches:
       - master
@@ -13,8 +12,6 @@ jobs:
   lint:
     name: lint
     runs-on: ubuntu-latest
-    
-
     steps:
       - uses: actions/checkout@v4
 
@@ -32,8 +29,9 @@ jobs:
   build:
     name: build
     runs-on: ubuntu-latest
-    
-
+    permissions:
+      contents: read
+      id-token: write
     steps:
       - uses: actions/checkout@v4
 
@@ -47,10 +45,24 @@ jobs:
 
       - name: Check build
         run: ./scripts/build
+
+      - name: Get GitHub OIDC Token
+        if: github.repository == 'stainless-sdks/openai-node'
+        id: github-oidc
+        uses: actions/github-script@v6
+        with:
+          script: core.setOutput('github_token', await core.getIDToken());
+
+      - name: Upload tarball
+        if: github.repository == 'stainless-sdks/openai-node'
+        env:
+          URL: https://pkg.stainless.com/s
+          AUTH: ${{ steps.github-oidc.outputs.github_token }}
+          SHA: ${{ github.sha }}
+        run: ./scripts/utils/upload-artifact.sh
   test:
     name: test
     runs-on: ubuntu-latest
-
     steps:
       - uses: actions/checkout@v4
 
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index bc3f36214..12b27aa8e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.93.0"
+  ".": "4.94.0"
 }
diff --git a/.stats.yml b/.stats.yml
index c39ce1186..b40485bd0 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-32de3bc513663c5fac922c49be41c222b6ee8c0b841d8966bcdfa489d441daa3.yml
-openapi_spec_hash: ea86343b5e9858a74e85da8ab2c532f6
-config_hash: 43dc8df20ffec9d1503f91866cb2b7d9
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/openai%2Fopenai-a555f81249cb084f463dcefa4aba069f9341fdaf3dd6ac27d7f237fc90e8f488.yml
+openapi_spec_hash: 8e590296cd1a54b9508510b0c7a2c45a
+config_hash: 5ea32de61ff42fcf5e66cff8d9e247ea
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6a402af8..d4e7613fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## 4.94.0 (2025-04-14)
+
+Full Changelog: [v4.93.0...v4.94.0](https://github.com/openai/openai-node/compare/v4.93.0...v4.94.0)
+
+### Features
+
+* **api:** adding gpt-4.1 family of model IDs ([bddcbcf](https://github.com/openai/openai-node/commit/bddcbcffdc409ffc8a078a65bbd302cd50b35ff0))
+* **api:** manual updates ([7532f48](https://github.com/openai/openai-node/commit/7532f48ad25c5125064a59985587c20c47a2cbfb))
+
+
+### Chores
+
+* **client:** minor internal fixes ([d342f17](https://github.com/openai/openai-node/commit/d342f17e2642da5ee83d080b410dc3c4fe153814))
+* **internal:** reduce CI branch coverage ([a49b94a](https://github.com/openai/openai-node/commit/a49b94a9aebd3e30e1802fff633e1b46cfb81942))
+* **internal:** upload builds and expand CI branch coverage ([#1460](https://github.com/openai/openai-node/issues/1460)) ([7e23bb4](https://github.com/openai/openai-node/commit/7e23bb4f4a09303195b612cc5b393cc41c1d855b))
+* workaround build errors ([913eba8](https://github.com/openai/openai-node/commit/913eba828d116f49fa78b219c62274c1e95c6f17))
+
 ## 4.93.0 (2025-04-08)
 
 Full Changelog: [v4.92.1...v4.93.0](https://github.com/openai/openai-node/compare/v4.92.1...v4.93.0)
diff --git a/jsr.json b/jsr.json
index b5e49671a..891e18dcb 100644
--- a/jsr.json
+++ b/jsr.json
@@ -1,6 +1,6 @@
 {
   "name": "@openai/openai",
-  "version": "4.93.0",
+  "version": "4.94.0",
   "exports": {
     ".": "./index.ts",
     "./helpers/zod": "./helpers/zod.ts",
diff --git a/package.json b/package.json
index b9316cbe3..a399b6cf6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openai",
-  "version": "4.93.0",
+  "version": "4.94.0",
   "description": "The official TypeScript library for the OpenAI API",
   "author": "OpenAI <support@openai.com>",
   "types": "dist/index.d.ts",
diff --git a/scripts/utils/upload-artifact.sh b/scripts/utils/upload-artifact.sh
new file mode 100755
index 000000000..0e8490199
--- /dev/null
+++ b/scripts/utils/upload-artifact.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -exuo pipefail
+
+RESPONSE=$(curl -X POST "$URL" \
+  -H "Authorization: Bearer $AUTH" \
+  -H "Content-Type: application/json")
+
+SIGNED_URL=$(echo "$RESPONSE" | jq -r '.url')
+
+if [[ "$SIGNED_URL" == "null" ]]; then
+  echo -e "\033[31mFailed to get signed URL.\033[0m"
+  exit 1
+fi
+
+UPLOAD_RESPONSE=$(tar -cz dist | curl -v -X PUT \
+  -H "Content-Type: application/gzip" \
+  --data-binary @- "$SIGNED_URL" 2>&1)
+
+if echo "$UPLOAD_RESPONSE" | grep -q "HTTP/[0-9.]* 200"; then
+  echo -e "\033[32mUploaded build to Stainless storage.\033[0m"
+  echo -e "\033[32mInstallation: npm install 'https://pkg.stainless.com/s/openai-node/$SHA'\033[0m"
+else
+  echo -e "\033[31mFailed to upload artifact.\033[0m"
+  exit 1
+fi
diff --git a/src/core.ts b/src/core.ts
index ccc677e0e..cfd4eeaa6 100644
--- a/src/core.ts
+++ b/src/core.ts
@@ -331,10 +331,10 @@ export abstract class APIClient {
   }
 
   buildRequest<Req>(
-    options: FinalRequestOptions<Req>,
+    inputOptions: FinalRequestOptions<Req>,
     { retryCount = 0 }: { retryCount?: number } = {},
   ): { req: RequestInit; url: string; timeout: number } {
-    options = { ...options };
+    const options = { ...inputOptions };
     const { method, path, query, headers: headers = {} } = options;
 
     const body =
@@ -362,8 +362,8 @@ export abstract class APIClient {
     }
 
     if (this.idempotencyHeader && method !== 'get') {
-      if (!options.idempotencyKey) options.idempotencyKey = this.defaultIdempotencyKey();
-      headers[this.idempotencyHeader] = options.idempotencyKey;
+      if (!inputOptions.idempotencyKey) inputOptions.idempotencyKey = this.defaultIdempotencyKey();
+      headers[this.idempotencyHeader] = inputOptions.idempotencyKey;
     }
 
     const reqHeaders = this.buildHeaders({ options, headers, contentLength, retryCount });
diff --git a/src/resources/beta/assistants.ts b/src/resources/beta/assistants.ts
index 0668dcf54..bf957db95 100644
--- a/src/resources/beta/assistants.ts
+++ b/src/resources/beta/assistants.ts
@@ -1337,6 +1337,12 @@ export interface AssistantUpdateParams {
    */
   model?:
     | (string & {})
+    | 'gpt-4.1'
+    | 'gpt-4.1-mini'
+    | 'gpt-4.1-nano'
+    | 'gpt-4.1-2025-04-14'
+    | 'gpt-4.1-mini-2025-04-14'
+    | 'gpt-4.1-nano-2025-04-14'
     | 'o3-mini'
     | 'o3-mini-2025-01-31'
     | 'o1'
diff --git a/src/resources/shared.ts b/src/resources/shared.ts
index 3e8ded763..94ef50585 100644
--- a/src/resources/shared.ts
+++ b/src/resources/shared.ts
@@ -9,6 +9,12 @@ export type AllModels =
   | 'computer-use-preview-2025-03-11';
 
 export type ChatModel =
+  | 'gpt-4.1'
+  | 'gpt-4.1-mini'
+  | 'gpt-4.1-nano'
+  | 'gpt-4.1-2025-04-14'
+  | 'gpt-4.1-mini-2025-04-14'
+  | 'gpt-4.1-nano-2025-04-14'
   | 'o3-mini'
   | 'o3-mini-2025-01-31'
   | 'o1'
diff --git a/src/version.ts b/src/version.ts
index c385afc4c..4a35de04b 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '4.93.0'; // x-release-please-version
+export const VERSION = '4.94.0'; // x-release-please-version