diff --git a/src/app.tsx b/src/app.tsx
index 95268d3..de88811 100644
--- a/src/app.tsx
+++ b/src/app.tsx
@@ -17,6 +17,7 @@ export interface ChatStore {
   apiEndpoint: string;
   streamMode: boolean;
   model: string;
+  responseModelName: string;
 }
 
 const _defaultAPIEndpoint = "https://api.openai.com/v1/chat/completions";
@@ -38,6 +39,7 @@ const newChatStore = (
     apiEndpoint: getDefaultParams("api", apiEndpoint),
     streamMode: getDefaultParams("mode", streamMode),
     model: getDefaultParams("model", model),
+    responseModelName: "",
   };
 };
 
@@ -78,6 +80,7 @@ export function App() {
     const ret = JSON.parse(val) as ChatStore;
     // handle read from old version chatstore
     if (ret.model === undefined) ret.model = "gpt-3.5-turbo";
+    if (ret.responseModelName === undefined) ret.responseModelName = "";
     return ret;
   };
 
@@ -107,7 +110,7 @@ export function App() {
           chatStore.apiKey,
           chatStore.systemMessageContent,
           chatStore.apiEndpoint,
-          chatStore.streamMode,
+          chatStore.streamMode
         )
       )
     );
diff --git a/src/chatbox.tsx b/src/chatbox.tsx
index f28103e..12b17b5 100644
--- a/src/chatbox.tsx
+++ b/src/chatbox.tsx
@@ -28,6 +28,7 @@ export default function ChatBOX(props: {
   const client = new ChatGPT(chatStore.apiKey);
 
   const _completeWithStreamMode = async (response: Response) => {
+    chatStore.streamMode = true;
     // call api, return reponse text
     console.log("response", response);
     const reader = response.body?.getReader();
@@ -60,7 +61,10 @@ export default function ChatBOX(props: {
               return JSON.parse(line.trim().slice("data: ".length));
             })
             .filter((i) => i);
-          // console.log("jsons", jsons);
+          console.log("jsons", jsons);
+          for (const { model } of jsons) {
+            if (model) chatStore.responseModelName = model;
+          }
           const chunkText = jsons
             .map((j) => j.choices[0].delta.content ?? "")
             .join("");
@@ -92,7 +96,9 @@ export default function ChatBOX(props: {
   };
 
   const _completeWithFetchMode = async (response: Response) => {
+    chatStore.streamMode = false;
     const data = (await response.json()) as FetchResponse;
+    chatStore.responseModelName = data.model ?? "";
     const content = client.processFetchResponse(data);
     chatStore.history.push({ role: "assistant", content });
     setShowGenerating(false);
@@ -113,10 +119,8 @@ export default function ChatBOX(props: {
       const response = await client._fetch(chatStore.streamMode);
       const contentType = response.headers.get("content-type");
       if (contentType === "text/event-stream") {
-        chatStore.streamMode = true;
         await _completeWithStreamMode(response);
       } else if (contentType === "application/json") {
-        chatStore.streamMode = false;
         await _completeWithFetchMode(response);
       } else {
         throw `unknown response content type ${contentType}`;
@@ -148,6 +152,7 @@ export default function ChatBOX(props: {
       console.log("empty message");
       return;
     }
+    chatStore.responseModelName = "";
     chatStore.history.push({ role: "user", content: inputMsg.trim() });
     // manually calculate token length
     chatStore.totalTokens += client.calculate_token_length(inputMsg.trim());
@@ -243,6 +248,11 @@ export default function ChatBOX(props: {
             ...
           </p>
         )}
+        {chatStore.responseModelName && (
+          <p className="p-2 my-2 text-center opacity-50 dark:text-white">
+            Generated by {chatStore.responseModelName}
+          </p>
+        )}
         {showRetry && (
           <p className="text-right p-2 my-2 dark:text-white">
             <button
diff --git a/src/chatgpt.ts b/src/chatgpt.ts
index 73cc5e5..32fca12 100644
--- a/src/chatgpt.ts
+++ b/src/chatgpt.ts
@@ -4,6 +4,7 @@ export interface Message {
 }
 
 export interface ChunkMessage {
+  model: string;
   choices: {
     delta: { role: "assitant" | undefined; content: string | undefined };
   }[];