diff --git a/langchain/src/chains/openai_moderation.ts b/langchain/src/chains/openai_moderation.ts
index 5497bf8449ae..f6f4194d9650 100644
--- a/langchain/src/chains/openai_moderation.ts
+++ b/langchain/src/chains/openai_moderation.ts
@@ -87,7 +87,7 @@ export class OpenAIModerationChain
     this.throwError = fields?.throwError ?? false;
     this.openAIApiKey =
       fields?.apiKey ??
-      fields?.openAIApiKey ?? 
+      fields?.openAIApiKey ??
       getEnvironmentVariable("OPENAI_API_KEY");
 
     if (!this.openAIApiKey) {
diff --git a/libs/langchain-azure-openai/src/chat_models.ts b/libs/langchain-azure-openai/src/chat_models.ts
index 79233bf1a2bf..9b899d3c7889 100644
--- a/libs/langchain-azure-openai/src/chat_models.ts
+++ b/libs/langchain-azure-openai/src/chat_models.ts
@@ -163,6 +163,7 @@ export interface ChatOpenAICallOptions
   seed?: number;
 }
 
+/** @deprecated Import from "@langchain/openai" instead. */
 export class AzureChatOpenAI
   extends BaseChatModel<ChatOpenAICallOptions>
   implements OpenAIChatInput, AzureOpenAIInput
@@ -268,7 +269,7 @@ export class AzureChatOpenAI
 
     const openAiApiKey =
       fields?.apiKey ??
-      fields?.openAIApiKey ?? 
+      fields?.openAIApiKey ??
       getEnvironmentVariable("OPENAI_API_KEY");
 
     this.azureOpenAIApiKey =
diff --git a/libs/langchain-azure-openai/src/embeddings.ts b/libs/langchain-azure-openai/src/embeddings.ts
index 85a0546b7e17..4289d8f66192 100644
--- a/libs/langchain-azure-openai/src/embeddings.ts
+++ b/libs/langchain-azure-openai/src/embeddings.ts
@@ -15,6 +15,7 @@ import { chunkArray } from "@langchain/core/utils/chunk_array";
 import { AzureOpenAIInput, AzureOpenAIEmbeddingsParams } from "./types.js";
 import { USER_AGENT_PREFIX } from "./constants.js";
 
+/** @deprecated Import from "@langchain/openai" instead. */
 export class AzureOpenAIEmbeddings
   extends Embeddings
   implements AzureOpenAIEmbeddingsParams, AzureOpenAIInput
@@ -63,7 +64,7 @@ export class AzureOpenAIEmbeddings
 
     const openAiApiKey =
       fields?.apiKey ??
-      fields?.openAIApiKey ?? 
+      fields?.openAIApiKey ??
       getEnvironmentVariable("OPENAI_API_KEY");
 
     this.azureOpenAIApiKey =
diff --git a/libs/langchain-azure-openai/src/llms.ts b/libs/langchain-azure-openai/src/llms.ts
index c08b526ede4f..998705449459 100644
--- a/libs/langchain-azure-openai/src/llms.ts
+++ b/libs/langchain-azure-openai/src/llms.ts
@@ -33,6 +33,7 @@ export interface TokenUsage {
   totalTokens?: number;
 }
 
+/** @deprecated Import from "@langchain/openai" instead. */
 export class AzureOpenAI<
     CallOptions extends OpenAICallOptions = OpenAICallOptions
   >
@@ -136,7 +137,7 @@ export class AzureOpenAI<
 
     const openAiApiKey =
       fields?.apiKey ??
-      fields?.openAIApiKey ?? 
+      fields?.openAIApiKey ??
       getEnvironmentVariable("OPENAI_API_KEY");
 
     this.azureOpenAIApiKey =
diff --git a/libs/langchain-openai/src/legacy.ts b/libs/langchain-openai/src/legacy.ts
index 3bea08506152..16e0452af2e2 100644
--- a/libs/langchain-openai/src/legacy.ts
+++ b/libs/langchain-openai/src/legacy.ts
@@ -158,7 +158,7 @@ export class OpenAIChat
 
     this.openAIApiKey =
       fields?.apiKey ??
-      fields?.openAIApiKey ?? 
+      fields?.openAIApiKey ??
       getEnvironmentVariable("OPENAI_API_KEY");
 
     this.azureOpenAIApiKey =