chore(openai/v1): patch changes (#9193)

Author: hntrl

libs/providers/langchain-openai/package.json

@@ -31,7 +31,7 @@
   },
   "dependencies": {
     "js-tiktoken": "^1.0.12",
-    "openai": "^5.3.0",
+    "openai": "^6.3.0",
     "zod": "^3.25.76 || ^4"
   },
   "peerDependencies": {

libs/providers/langchain-openai/src/chat_models.ts

@@ -2636,7 +2636,9 @@ export interface ChatOpenAIFields extends BaseChatOpenAIFields {
  *   timeout: undefined,
  *   maxRetries: 2,
  *   // apiKey: "...",
- *   // baseUrl: "...",
+ *   // configuration: {
+ *   //   baseURL: "...",
+ *   // }
  *   // organization: "...",
  *   // other params...
  * });

libs/providers/langchain-openai/src/tests/chat_models.test.ts

@@ -431,6 +431,17 @@ describe("ChatOpenAI", () => {
     ]);
   });
 
+  test("specifying streaming=false disables streaming", async () => {
+    const model = new ChatOpenAI({
+      model: "gpt-4o-2024-08-06",
+      streaming: false,
+    });
+
+    // disableStreaming will disable streaming in BaseChatModel
+    expect(model.disableStreaming).toBe(true);
+    expect(model.streaming).toBe(false);
+  });
+
   describe("custom tool streaming delta handling", () => {
     it("should handle response.custom_tool_call_input.delta events", () => {
       const responses = new ChatOpenAI({

libs/providers/langchain-openai/src/utils/misc.ts

@@ -4,7 +4,10 @@ import { BaseMessage, ChatMessage } from "@langchain/core/messages";
 export const iife = <T>(fn: () => T) => fn();
 
 export function isReasoningModel(model?: string) {
-  return model && /^o\d/.test(model);
+  if (!model) return false;
+  if (/^o\d/.test(model ?? "")) return true;
+  if (model.startsWith("gpt-5") && !model.startsWith("gpt-5-chat")) return true;
+  return false;
 }
 
 export function extractGenericMessageCustomRole(message: ChatMessage) {