diff --git a/app/requests.ts b/app/requests.ts
index 9c069ccb..582ab486 100644
--- a/app/requests.ts
+++ b/app/requests.ts
@@ -14,9 +14,8 @@ const TIME_OUT_MS = 60000;
 const makeRequestParam = (
   messages: Message[],
   options?: {
-    filterBot?: boolean;
     stream?: boolean;
-    model?: ModelType;
+    overrideModel?: ModelType;
   },
 ): ChatRequest => {
   let sendMessages = messages.map((v) => ({
@@ -24,18 +23,14 @@ const makeRequestParam = (
     content: v.content,
   }));
 
-  if (options?.filterBot) {
-    sendMessages = sendMessages.filter((m) => m.role !== "assistant");
-  }
-
   const modelConfig = {
     ...useAppConfig.getState().modelConfig,
     ...useChatStore.getState().currentSession().mask.modelConfig,
   };
 
   // override model config
-  if (options?.model) {
-    modelConfig.model = options.model;
+  if (options?.overrideModel) {
+    modelConfig.model = options.overrideModel;
   }
 
   return {
@@ -82,8 +77,7 @@ export async function requestChat(
   },
 ) {
   const req: ChatRequest = makeRequestParam(messages, {
-    filterBot: true,
-    model: options?.model,
+    overrideModel: options?.model,
   });
 
   const res = await requestOpenaiClient("v1/chat/completions")(req);
@@ -149,9 +143,8 @@ export async function requestUsage() {
 export async function requestChatStream(
   messages: Message[],
   options?: {
-    filterBot?: boolean;
     modelConfig?: ModelConfig;
-    model?: ModelType;
+    overrideModel?: ModelType;
     onMessage: (message: string, done: boolean) => void;
     onError: (error: Error, statusCode?: number) => void;
     onController?: (controller: AbortController) => void;
@@ -159,8 +152,7 @@ export async function requestChatStream(
 ) {
   const req = makeRequestParam(messages, {
     stream: true,
-    filterBot: options?.filterBot,
-    model: options?.model,
+    overrideModel: options?.overrideModel,
   });
 
   console.log("[Request] ", req);
diff --git a/app/store/chat.ts b/app/store/chat.ts
index d1aeabf7..5abd8129 100644
--- a/app/store/chat.ts
+++ b/app/store/chat.ts
@@ -236,6 +236,9 @@ export const useChatStore = create<ChatStore>()(
       },
 
       async onUserInput(content) {
+        const session = get().currentSession();
+        const modelConfig = session.mask.modelConfig;
+
         const userMessage: Message = createMessage({
           role: "user",
           content,
@@ -245,7 +248,7 @@ export const useChatStore = create<ChatStore>()(
           role: "assistant",
           streaming: true,
           id: userMessage.id! + 1,
-          model: useAppConfig.getState().modelConfig.model,
+          model: modelConfig.model,
         });
 
         // get recent messages
@@ -279,14 +282,16 @@ export const useChatStore = create<ChatStore>()(
             }
           },
           onError(error, statusCode) {
+            const isAborted = error.message.includes("aborted");
             if (statusCode === 401) {
               botMessage.content = Locale.Error.Unauthorized;
-            } else if (!error.message.includes("aborted")) {
+            } else if (!isAborted) {
               botMessage.content += "\n\n" + Locale.Store.Error;
             }
             botMessage.streaming = false;
-            userMessage.isError = true;
-            botMessage.isError = true;
+            userMessage.isError = !isAborted;
+            botMessage.isError = !isAborted;
+
             set(() => ({}));
             ControllerPool.remove(sessionIndex, botMessage.id ?? messageIndex);
           },
@@ -298,8 +303,7 @@ export const useChatStore = create<ChatStore>()(
               controller,
             );
           },
-          filterBot: !useAppConfig.getState().sendBotMessages,
-          modelConfig: useAppConfig.getState().modelConfig,
+          modelConfig: { ...modelConfig },
         });
       },
 
@@ -318,7 +322,7 @@ export const useChatStore = create<ChatStore>()(
 
       getMessagesWithMemory() {
         const session = get().currentSession();
-        const config = useAppConfig.getState();
+        const modelConfig = session.mask.modelConfig;
         const messages = session.messages.filter((msg) => !msg.isError);
         const n = messages.length;
 
@@ -326,7 +330,7 @@ export const useChatStore = create<ChatStore>()(
 
         // long term memory
         if (
-          session.mask.modelConfig.sendMemory &&
+          modelConfig.sendMemory &&
           session.memoryPrompt &&
           session.memoryPrompt.length > 0
         ) {
@@ -337,14 +341,14 @@ export const useChatStore = create<ChatStore>()(
         // get short term and unmemoried long term memory
         const shortTermMemoryMessageIndex = Math.max(
           0,
-          n - config.modelConfig.historyMessageCount,
+          n - modelConfig.historyMessageCount,
         );
         const longTermMemoryMessageIndex = session.lastSummarizeIndex;
         const oldestIndex = Math.max(
           shortTermMemoryMessageIndex,
           longTermMemoryMessageIndex,
         );
-        const threshold = config.modelConfig.compressMessageLengthThreshold;
+        const threshold = modelConfig.compressMessageLengthThreshold;
 
         // get recent messages as many as possible
         const reversedRecentMessages = [];
@@ -403,17 +407,17 @@ export const useChatStore = create<ChatStore>()(
           });
         }
 
-        const config = useAppConfig.getState();
+        const modelConfig = session.mask.modelConfig;
         let toBeSummarizedMsgs = session.messages.slice(
           session.lastSummarizeIndex,
         );
 
         const historyMsgLength = countMessages(toBeSummarizedMsgs);
 
-        if (historyMsgLength > config?.modelConfig?.max_tokens ?? 4000) {
+        if (historyMsgLength > modelConfig?.max_tokens ?? 4000) {
           const n = toBeSummarizedMsgs.length;
           toBeSummarizedMsgs = toBeSummarizedMsgs.slice(
-            Math.max(0, n - config.modelConfig.historyMessageCount),
+            Math.max(0, n - modelConfig.historyMessageCount),
           );
         }
 
@@ -426,12 +430,11 @@ export const useChatStore = create<ChatStore>()(
           "[Chat History] ",
           toBeSummarizedMsgs,
           historyMsgLength,
-          config.modelConfig.compressMessageLengthThreshold,
+          modelConfig.compressMessageLengthThreshold,
         );
 
         if (
-          historyMsgLength >
-            config.modelConfig.compressMessageLengthThreshold &&
+          historyMsgLength > modelConfig.compressMessageLengthThreshold &&
           session.mask.modelConfig.sendMemory
         ) {
           requestChatStream(
@@ -441,8 +444,7 @@ export const useChatStore = create<ChatStore>()(
               date: "",
             }),
             {
-              filterBot: false,
-              model: "gpt-3.5-turbo",
+              overrideModel: "gpt-3.5-turbo",
               onMessage(message, done) {
                 session.memoryPrompt = message;
                 if (done) {
diff --git a/app/store/config.ts b/app/store/config.ts
index 4bd68b73..da77c7b3 100644
--- a/app/store/config.ts
+++ b/app/store/config.ts
@@ -17,7 +17,6 @@ export enum Theme {
 }
 
 export const DEFAULT_CONFIG = {
-  sendBotMessages: true as boolean,
   submitKey: SubmitKey.CtrlEnter as SubmitKey,
   avatar: "1f603",
   fontSize: 14,