diff --git a/libs/langchain-openai/package.json b/libs/langchain-openai/package.json
index 5bd7b8b1bd17..986b8f13212d 100644
--- a/libs/langchain-openai/package.json
+++ b/libs/langchain-openai/package.json
@@ -28,6 +28,7 @@
     "test": "yarn run build:deps && NODE_OPTIONS=--experimental-vm-modules jest --testPathIgnorePatterns=\\.int\\.test.ts --testTimeout 30000 --maxWorkers=50%",
     "test:watch": "yarn run build:deps && NODE_OPTIONS=--experimental-vm-modules jest --watch --testPathIgnorePatterns=\\.int\\.test.ts",
     "test:single": "yarn run build:deps && NODE_OPTIONS=--experimental-vm-modules yarn run jest --config jest.config.cjs --testTimeout 100000",
+    "test:int": "NODE_OPTIONS=--experimental-vm-modules jest --testPathPattern=\\.int\\.test.ts --testTimeout 100000 --maxWorkers=50%",
     "format": "prettier --write \"src\"",
     "format:check": "prettier --check \"src\""
   },
diff --git a/langchain/src/chat_models/tests/chatopenai-extended.int.test.ts b/libs/langchain-openai/src/tests/chat_models-extended.int.test.ts
similarity index 82%
rename from langchain/src/chat_models/tests/chatopenai-extended.int.test.ts
rename to libs/langchain-openai/src/tests/chat_models-extended.int.test.ts
index 995da52a22f1..78c9f807b622 100644
--- a/langchain/src/chat_models/tests/chatopenai-extended.int.test.ts
+++ b/libs/langchain-openai/src/tests/chat_models-extended.int.test.ts
@@ -1,6 +1,7 @@
-import { test, expect } from "@jest/globals";
-import { ChatOpenAI } from "../openai.js";
-import { HumanMessage, ToolMessage } from "../../schema/index.js";
+import { test, expect, jest } from "@jest/globals";
+import { HumanMessage, ToolMessage } from "@langchain/core/messages";
+import { InMemoryCache } from "@langchain/core/caches";
+import { ChatOpenAI } from "../chat_models.js";
 
 test("Test ChatOpenAI JSON mode", async () => {
   const chat = new ChatOpenAI({
@@ -174,3 +175,34 @@ test("Test ChatOpenAI tool calling with streaming", async () => {
   console.log(finalChunk?.additional_kwargs.tool_calls);
   expect(finalChunk?.additional_kwargs.tool_calls?.length).toBeGreaterThan(1);
 });
+
+test("ChatOpenAI in JSON mode can cache generations", async () => {
+  const memoryCache = new InMemoryCache();
+  const lookupSpy = jest.spyOn(memoryCache, "lookup");
+  const updateSpy = jest.spyOn(memoryCache, "update");
+  const chat = new ChatOpenAI({
+    modelName: "gpt-3.5-turbo-1106",
+    temperature: 1,
+    cache: memoryCache,
+  }).bind({
+    response_format: {
+      type: "json_object",
+    },
+  });
+  const message = new HumanMessage(
+    "Respond with a JSON object containing arbitrary fields."
+  );
+  const res = await chat.invoke([message]);
+  console.log(res);
+
+  const res2 = await chat.invoke([message]);
+  console.log(res2);
+
+  expect(res).toEqual(res2);
+
+  expect(lookupSpy).toHaveBeenCalledTimes(2);
+  expect(updateSpy).toHaveBeenCalledTimes(1);
+
+  lookupSpy.mockRestore();
+  updateSpy.mockRestore();
+});
diff --git a/langchain/src/chat_models/tests/chatopenai-vision.int.test.ts b/libs/langchain-openai/src/tests/chat_models-vision.int.test.ts
similarity index 92%
rename from langchain/src/chat_models/tests/chatopenai-vision.int.test.ts
rename to libs/langchain-openai/src/tests/chat_models-vision.int.test.ts
index 56dc7c381d25..94fa4c1cc998 100644
--- a/langchain/src/chat_models/tests/chatopenai-vision.int.test.ts
+++ b/libs/langchain-openai/src/tests/chat_models-vision.int.test.ts
@@ -1,9 +1,9 @@
 import { test } from "@jest/globals";
+import { HumanMessage } from "@langchain/core/messages";
 import * as fs from "node:fs/promises";
 import { fileURLToPath } from "node:url";
 import * as path from "node:path";
-import { ChatOpenAI } from "../openai.js";
-import { HumanMessage } from "../../schema/index.js";
+import { ChatOpenAI } from "../chat_models.js";
 
 test("Test ChatOpenAI with a file", async () => {
   const __filename = fileURLToPath(import.meta.url);
diff --git a/langchain/src/chat_models/tests/chatopenai.int.test.ts b/libs/langchain-openai/src/tests/chat_models.int.test.ts
similarity index 97%
rename from langchain/src/chat_models/tests/chatopenai.int.test.ts
rename to libs/langchain-openai/src/tests/chat_models.int.test.ts
index 5d712f2b3bb2..0ce5b095ae63 100644
--- a/langchain/src/chat_models/tests/chatopenai.int.test.ts
+++ b/libs/langchain-openai/src/tests/chat_models.int.test.ts
@@ -1,23 +1,22 @@
 import { test, jest, expect } from "@jest/globals";
-import { ChatOpenAI } from "../openai.js";
 import {
   BaseMessage,
   ChatMessage,
-  ChatGeneration,
   HumanMessage,
-  LLMResult,
   SystemMessage,
-} from "../../schema/index.js";
-import { ChatPromptValue } from "../../prompts/chat.js";
+} from "@langchain/core/messages";
+import { ChatGeneration, LLMResult } from "@langchain/core/outputs";
+import { ChatPromptValue } from "@langchain/core/prompt_values";
 import {
   PromptTemplate,
   ChatPromptTemplate,
   HumanMessagePromptTemplate,
   SystemMessagePromptTemplate,
-} from "../../prompts/index.js";
-import { CallbackManager } from "../../callbacks/index.js";
-import { NewTokenIndices } from "../../callbacks/base.js";
-import { InMemoryCache } from "../../cache/index.js";
+} from "@langchain/core/prompts";
+import { CallbackManager } from "@langchain/core/callbacks/manager";
+import { NewTokenIndices } from "@langchain/core/callbacks/base";
+import { InMemoryCache } from "@langchain/core/caches";
+import { ChatOpenAI } from "../chat_models.js";
 
 test("Test ChatOpenAI", async () => {
   const chat = new ChatOpenAI({ modelName: "gpt-3.5-turbo", maxTokens: 10 });
@@ -360,11 +359,14 @@ test("Test ChatOpenAI stream method", async () => {
 
 test("Test ChatOpenAI stream method with abort", async () => {
   await expect(async () => {
-    const model = new ChatOpenAI({ maxTokens: 50, modelName: "gpt-3.5-turbo" });
+    const model = new ChatOpenAI({
+      maxTokens: 100,
+      modelName: "gpt-3.5-turbo",
+    });
     const stream = await model.stream(
       "How is your day going? Be extremely verbose.",
       {
-        signal: AbortSignal.timeout(1000),
+        signal: AbortSignal.timeout(500),
       }
     );
     for await (const chunk of stream) {
diff --git a/libs/langchain-openai/src/tests/data/hotdog.jpg b/libs/langchain-openai/src/tests/data/hotdog.jpg
new file mode 100644
index 000000000000..dfab265903be
Binary files /dev/null and b/libs/langchain-openai/src/tests/data/hotdog.jpg differ
diff --git a/libs/langchain-openai/src/tests/embeddings.int.test b/libs/langchain-openai/src/tests/embeddings.int.test
new file mode 100644
index 000000000000..101fb6a4dd83
--- /dev/null
+++ b/libs/langchain-openai/src/tests/embeddings.int.test
@@ -0,0 +1,69 @@
+import { test, expect } from "@jest/globals";
+import { OpenAIEmbeddings } from "../embeddings.js";
+
+test("Test OpenAIEmbeddings.embedQuery", async () => {
+  const embeddings = new OpenAIEmbeddings();
+  const res = await embeddings.embedQuery("Hello world");
+  expect(typeof res[0]).toBe("number");
+});
+
+test("Test OpenAIEmbeddings.embedDocuments", async () => {
+  const embeddings = new OpenAIEmbeddings();
+  const res = await embeddings.embedDocuments(["Hello world", "Bye bye"]);
+  expect(res).toHaveLength(2);
+  expect(typeof res[0][0]).toBe("number");
+  expect(typeof res[1][0]).toBe("number");
+});
+
+test("Test OpenAIEmbeddings concurrency", async () => {
+  const embeddings = new OpenAIEmbeddings({
+    batchSize: 1,
+    maxConcurrency: 2,
+  });
+  const res = await embeddings.embedDocuments([
+    "Hello world",
+    "Bye bye",
+    "Hello world",
+    "Bye bye",
+    "Hello world",
+    "Bye bye",
+  ]);
+  expect(res).toHaveLength(6);
+  expect(res.find((embedding) => typeof embedding[0] !== "number")).toBe(
+    undefined
+  );
+});
+
+test("Test timeout error thrown from SDK", async () => {
+  await expect(async () => {
+    const model = new OpenAIEmbeddings({
+      timeout: 1,
+    });
+    await model.embedDocuments([
+      "Hello world",
+      "Bye bye",
+      "Hello world",
+      "Bye bye",
+      "Hello world",
+      "Bye bye",
+    ]);
+  }).rejects.toThrow();
+});
+
+test("Test OpenAI embeddings with an invalid org throws", async () => {
+  await expect(async () => {
+    const model = new OpenAIEmbeddings({
+      configuration: {
+        organization: "NOT_REAL",
+      },
+    });
+    await model.embedDocuments([
+      "Hello world",
+      "Bye bye",
+      "Hello world",
+      "Bye bye",
+      "Hello world",
+      "Bye bye",
+    ]);
+  }).rejects.toThrow();
+});
diff --git a/langchain/src/llms/tests/openai-chat.int.test.ts b/libs/langchain-openai/src/tests/legacy.int.test.ts
similarity index 97%
rename from langchain/src/llms/tests/openai-chat.int.test.ts
rename to libs/langchain-openai/src/tests/legacy.int.test.ts
index 43f737c552b8..3d896fdce495 100644
--- a/langchain/src/llms/tests/openai-chat.int.test.ts
+++ b/libs/langchain-openai/src/tests/legacy.int.test.ts
@@ -1,6 +1,6 @@
 import { expect, test } from "@jest/globals";
-import { OpenAIChat } from "../openai-chat.js";
-import { CallbackManager } from "../../callbacks/index.js";
+import { CallbackManager } from "@langchain/core/callbacks/manager";
+import { OpenAIChat } from "../legacy.js";
 
 test("Test OpenAI", async () => {
   const model = new OpenAIChat({ modelName: "gpt-3.5-turbo", maxTokens: 10 });
diff --git a/langchain/src/llms/tests/openai.int.test.ts b/libs/langchain-openai/src/tests/llms.int.test.ts
similarity index 95%
rename from langchain/src/llms/tests/openai.int.test.ts
rename to libs/langchain-openai/src/tests/llms.int.test.ts
index 53421b1ff326..37b3ff135af5 100644
--- a/langchain/src/llms/tests/openai.int.test.ts
+++ b/libs/langchain-openai/src/tests/llms.int.test.ts
@@ -1,10 +1,10 @@
 import { test, expect } from "@jest/globals";
-import { LLMResult } from "../../schema/index.js";
-import { OpenAIChat } from "../openai-chat.js";
-import { OpenAI } from "../openai.js";
-import { StringPromptValue } from "../../prompts/index.js";
-import { CallbackManager } from "../../callbacks/index.js";
-import { NewTokenIndices } from "../../callbacks/base.js";
+import { LLMResult } from "@langchain/core/outputs";
+import { StringPromptValue } from "@langchain/core/prompt_values";
+import { CallbackManager } from "@langchain/core/callbacks/manager";
+import { NewTokenIndices } from "@langchain/core/callbacks/base";
+import { OpenAIChat } from "../legacy.js";
+import { OpenAI } from "../llms.js";
 
 test("Test OpenAI", async () => {
   const model = new OpenAI({