diff --git a/app/api/openai.ts b/app/api/openai.ts
index 6d11d6792..d32e45dd9 100644
--- a/app/api/openai.ts
+++ b/app/api/openai.ts
@@ -13,7 +13,7 @@ function getModels(remoteModelRes: OpenAIListModelResponse) {
 
   if (config.disableGPT4) {
     remoteModelRes.data = remoteModelRes.data.filter(
-      (m) => !m.id.startsWith("gpt-4"),
+      (m) => !m.id.startsWith("gpt-4") || m.id.startsWith("gpt-40-mini"),
     );
   }
 
diff --git a/app/components/button.tsx b/app/components/button.tsx
index c6039acc2..87b4abd30 100644
--- a/app/components/button.tsx
+++ b/app/components/button.tsx
@@ -18,6 +18,7 @@ export function IconButton(props: {
   tabIndex?: number;
   autoFocus?: boolean;
   style?: CSSProperties;
+  aria?: string;
 }) {
   return (
     <button
@@ -34,9 +35,11 @@ export function IconButton(props: {
       tabIndex={props.tabIndex}
       autoFocus={props.autoFocus}
       style={props.style}
+      aria-label={props.aria}
     >
       {props.icon && (
         <div
+          aria-label={props.text || props.title}
           className={
             styles["icon-button-icon"] +
             ` ${props.type === "primary" && "no-dark"}`
@@ -47,7 +50,12 @@ export function IconButton(props: {
       )}
 
       {props.text && (
-        <div className={styles["icon-button-text"]}>{props.text}</div>
+        <div
+          aria-label={props.text || props.title}
+          className={styles["icon-button-text"]}
+        >
+          {props.text}
+        </div>
       )}
     </button>
   );
diff --git a/app/components/chat.tsx b/app/components/chat.tsx
index 6cb0cc88f..a0d909ca3 100644
--- a/app/components/chat.tsx
+++ b/app/components/chat.tsx
@@ -382,7 +382,7 @@ export function ChatAction(props: {
         } as React.CSSProperties
       }
     >
-      <div ref={iconRef} className={styles["icon"]}>
+      <div ref={iconRef} className={styles["icon"]} aria-label={props.text}>
         {props.icon}
       </div>
       <div className={styles["text"]} ref={textRef}>
@@ -1337,6 +1337,8 @@ function _Chat() {
               <IconButton
                 icon={<RenameIcon />}
                 bordered
+                title={Locale.Chat.EditMessage.Title}
+                aria={Locale.Chat.EditMessage.Title}
                 onClick={() => setIsEditingMessage(true)}
               />
             </div>
@@ -1356,6 +1358,8 @@ function _Chat() {
               <IconButton
                 icon={config.tightBorder ? <MinIcon /> : <MaxIcon />}
                 bordered
+                title={Locale.Chat.Actions.FullScreen}
+                aria={Locale.Chat.Actions.FullScreen}
                 onClick={() => {
                   config.update(
                     (config) => (config.tightBorder = !config.tightBorder),
@@ -1407,6 +1411,7 @@ function _Chat() {
                       <div className={styles["chat-message-edit"]}>
                         <IconButton
                           icon={<EditIcon />}
+                          aria={Locale.Chat.Actions.Edit}
                           onClick={async () => {
                             const newMessage = await showPrompt(
                               Locale.Chat.Actions.Edit,
diff --git a/app/components/sidebar.tsx b/app/components/sidebar.tsx
index d8def056e..44ea43701 100644
--- a/app/components/sidebar.tsx
+++ b/app/components/sidebar.tsx
@@ -285,7 +285,10 @@ export function SideBar(props: { className?: string }) {
       <SideBarTail
         primaryAction={
           <>
-            <div className={styles["sidebar-action"] + " " + styles.mobile}>
+            <div
+              aria-label={Locale.Settings.Title}
+              className={styles["sidebar-action"] + " " + styles.mobile}
+            >
               <IconButton
                 icon={<DeleteIcon />}
                 onClick={async () => {
@@ -296,13 +299,21 @@ export function SideBar(props: { className?: string }) {
               />
             </div>
             <div className={styles["sidebar-action"]}>
-              <Link to={Path.Settings}>
-                <IconButton icon={<SettingsIcon />} shadow />
+              <Link to={Path.Settings} aria-label={Locale.Settings.Title}>
+                <IconButton
+                  aria={Locale.Settings.Title}
+                  icon={<SettingsIcon />}
+                  shadow
+                />
               </Link>
             </div>
             <div className={styles["sidebar-action"]}>
               <a href={REPO_URL} target="_blank" rel="noopener noreferrer">
-                <IconButton icon={<GithubIcon />} shadow />
+                <IconButton
+                  aria={Locale.Export.MessageFromChatGPT}
+                  icon={<GithubIcon />}
+                  shadow
+                />
               </a>
             </div>
           </>
diff --git a/app/config/server.ts b/app/config/server.ts
index 70c20ce64..3ac634fab 100644
--- a/app/config/server.ts
+++ b/app/config/server.ts
@@ -114,10 +114,16 @@ export const getServerSideConfig = () => {
 
   if (disableGPT4) {
     if (customModels) customModels += ",";
-    customModels += DEFAULT_MODELS.filter((m) => m.name.startsWith("gpt-4"))
+    customModels += DEFAULT_MODELS.filter(
+      (m) => m.name.startsWith("gpt-4") && !m.name.startsWith("gpt-4o-mini"),
+    )
       .map((m) => "-" + m.name)
       .join(",");
-    if (defaultModel.startsWith("gpt-4")) defaultModel = "";
+    if (
+      defaultModel.startsWith("gpt-4") &&
+      !defaultModel.startsWith("gpt-4o-mini")
+    )
+      defaultModel = "";
   }
 
   const isStability = !!process.env.STABILITY_API_KEY;
diff --git a/app/locales/cn.ts b/app/locales/cn.ts
index 69ada8784..b8561c0b6 100644
--- a/app/locales/cn.ts
+++ b/app/locales/cn.ts
@@ -42,6 +42,7 @@ const cn = {
       PinToastAction: "查看",
       Delete: "删除",
       Edit: "编辑",
+      FullScreen: "全屏",
     },
     Commands: {
       new: "新建聊天",