diff --git a/web/containers/CenterPanelContainer/index.tsx b/web/containers/CenterPanelContainer/index.tsx
index 9ce81f184c..fb2518dc77 100644
--- a/web/containers/CenterPanelContainer/index.tsx
+++ b/web/containers/CenterPanelContainer/index.tsx
@@ -1,15 +1,40 @@
 import { PropsWithChildren } from 'react'
 
+import { useMediaQuery } from '@janhq/joi'
 import { useAtomValue } from 'jotai'
 
 import { twMerge } from 'tailwind-merge'
 
+import { MainViewState } from '@/constants/screens'
+
+import { LEFT_PANEL_WIDTH } from '../LeftPanelContainer'
+
+import { RIGHT_PANEL_WIDTH } from '../RightPanelContainer'
+
+import {
+  mainViewStateAtom,
+  showLeftPanelAtom,
+  showRightPanelAtom,
+} from '@/helpers/atoms/App.atom'
 import { reduceTransparentAtom } from '@/helpers/atoms/Setting.atom'
 
 const CenterPanelContainer = ({ children }: PropsWithChildren) => {
   const reduceTransparent = useAtomValue(reduceTransparentAtom)
+  const matches = useMediaQuery('(max-width: 880px)')
+  const showLeftPanel = useAtomValue(showLeftPanelAtom)
+  const showRightPanel = useAtomValue(showRightPanelAtom)
+  const mainViewState = useAtomValue(mainViewStateAtom)
   return (
-    <div className={twMerge('flex h-full w-full')}>
+    <div
+      className={twMerge('flex h-full w-full')}
+      style={{
+        maxWidth: matches
+          ? '100%'
+          : mainViewState === MainViewState.Thread
+            ? `calc(100% - (${showRightPanel ? Number(localStorage.getItem(RIGHT_PANEL_WIDTH)) : 0}px + ${showLeftPanel ? Number(localStorage.getItem(LEFT_PANEL_WIDTH)) : 0}px))`
+            : '100%',
+      }}
+    >
       <div
         className={twMerge(
           'h-full w-full overflow-hidden bg-[hsla(var(--center-panel-bg))]',
diff --git a/web/containers/Layout/index.tsx b/web/containers/Layout/index.tsx
index e787163d48..5dd4068deb 100644
--- a/web/containers/Layout/index.tsx
+++ b/web/containers/Layout/index.tsx
@@ -1,6 +1,6 @@
 'use client'
 
-import { useEffect, useMemo } from 'react'
+import { useEffect } from 'react'
 
 import { useAtomValue, useSetAtom } from 'jotai'
 
diff --git a/web/containers/LeftPanelContainer/index.tsx b/web/containers/LeftPanelContainer/index.tsx
index 3991757f32..4b0a4c2091 100644
--- a/web/containers/LeftPanelContainer/index.tsx
+++ b/web/containers/LeftPanelContainer/index.tsx
@@ -17,7 +17,7 @@ import { reduceTransparentAtom } from '@/helpers/atoms/Setting.atom'
 type Props = PropsWithChildren
 
 const DEFAULT_LEFT_PANEL_WIDTH = 200
-const LEFT_PANEL_WIDTH = 'leftPanelWidth'
+export const LEFT_PANEL_WIDTH = 'leftPanelWidth'
 
 const LeftPanelContainer = ({ children }: Props) => {
   const [leftPanelRef, setLeftPanelRef] = useState<HTMLDivElement | null>(null)
diff --git a/web/containers/MainViewContainer/index.tsx b/web/containers/MainViewContainer/index.tsx
index ba7f87fd2b..811f19c6e9 100644
--- a/web/containers/MainViewContainer/index.tsx
+++ b/web/containers/MainViewContainer/index.tsx
@@ -37,7 +37,7 @@ const MainViewContainer = () => {
   }
 
   return (
-    <div className={twMerge('relative flex w-full')}>
+    <div className={twMerge('relative flex w-[calc(100%-48px)]')}>
       <div className="w-full">
         <m.div
           key={mainViewState}
diff --git a/web/containers/RightPanelContainer/index.tsx b/web/containers/RightPanelContainer/index.tsx
index 133130017f..805f1adc46 100644
--- a/web/containers/RightPanelContainer/index.tsx
+++ b/web/containers/RightPanelContainer/index.tsx
@@ -16,13 +16,13 @@ import { reduceTransparentAtom } from '@/helpers/atoms/Setting.atom'
 
 type Props = PropsWithChildren
 
-const DEFAULT_RIGTH_PANEL_WIDTH = 280
-const RIGHT_PANEL_WIDTH = 'rightPanelWidth'
+const DEFAULT_RIGHT_PANEL_WIDTH = 280
+export const RIGHT_PANEL_WIDTH = 'rightPanelWidth'
 
 const RightPanelContainer = ({ children }: Props) => {
   const [isResizing, setIsResizing] = useState(false)
   const [threadRightPanelWidth, setRightPanelWidth] = useState(
-    Number(localStorage.getItem(RIGHT_PANEL_WIDTH)) || DEFAULT_RIGTH_PANEL_WIDTH
+    Number(localStorage.getItem(RIGHT_PANEL_WIDTH)) || DEFAULT_RIGHT_PANEL_WIDTH
   )
   const [rightPanelRef, setRightPanelRef] = useState<HTMLDivElement | null>(
     null
@@ -55,11 +55,11 @@ const RightPanelContainer = ({ children }: Props) => {
               mouseMoveEvent.clientX <
             200
           ) {
-            setRightPanelWidth(DEFAULT_RIGTH_PANEL_WIDTH)
+            setRightPanelWidth(DEFAULT_RIGHT_PANEL_WIDTH)
             setIsResizing(false)
             localStorage.setItem(
               RIGHT_PANEL_WIDTH,
-              String(DEFAULT_RIGTH_PANEL_WIDTH)
+              String(DEFAULT_RIGHT_PANEL_WIDTH)
             )
             setShowRightPanel(false)
           } else {
@@ -77,8 +77,8 @@ const RightPanelContainer = ({ children }: Props) => {
 
   useEffect(() => {
     if (localStorage.getItem(RIGHT_PANEL_WIDTH) === null) {
-      setRightPanelWidth(DEFAULT_RIGTH_PANEL_WIDTH)
-      localStorage.setItem(RIGHT_PANEL_WIDTH, String(DEFAULT_RIGTH_PANEL_WIDTH))
+      setRightPanelWidth(DEFAULT_RIGHT_PANEL_WIDTH)
+      localStorage.setItem(RIGHT_PANEL_WIDTH, String(DEFAULT_RIGHT_PANEL_WIDTH))
     }
     window.addEventListener('mousemove', resize)
     window.addEventListener('mouseup', stopResizing)
diff --git a/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx b/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx
index 0d477d78dc..7166e39753 100644
--- a/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx
+++ b/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx
@@ -1,5 +1,5 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-import { useCallback, useEffect, useRef, useState } from 'react'
+import { useCallback, useEffect, useMemo, useRef, ClipboardEvent } from 'react'
 
 import { MessageStatus } from '@janhq/core'
 import hljs from 'highlight.js'
@@ -67,7 +67,7 @@ const RichTextEditor = ({
   placeholder,
   spellCheck,
 }: RichTextEditorProps) => {
-  const [editor] = useState(() => withHistory(withReact(createEditor())))
+  const editor = useMemo(() => withHistory(withReact(createEditor())), [])
   const currentLanguage = useRef<string>('plaintext')
   const hasStartBackticks = useRef<boolean>(false)
   const hasEndBackticks = useRef<boolean>(false)
@@ -80,6 +80,8 @@ const RichTextEditor = ({
   const { sendChatMessage } = useSendChatMessage()
   const { stopInference } = useActiveModel()
 
+  const largeContentThreshold = 1000
+
   // The decorate function identifies code blocks and marks the ranges
   const decorate = useCallback(
     (entry: [any, any]) => {
@@ -324,6 +326,16 @@ const RichTextEditor = ({
     [currentPrompt, editor, messages]
   )
 
+  const handlePaste = (event: ClipboardEvent<HTMLDivElement>) => {
+    const clipboardData = event.clipboardData || (window as any).clipboardData
+    const pastedData = clipboardData.getData('text')
+
+    if (pastedData.length > largeContentThreshold) {
+      event.preventDefault() // Prevent the default paste behavior
+      Transforms.insertText(editor, pastedData) // Insert the content directly into the editor
+    }
+  }
+
   return (
     <Slate
       editor={editor}
@@ -362,9 +374,18 @@ const RichTextEditor = ({
     >
       <Editable
         ref={textareaRef}
-        decorate={decorate} // Pass the decorate function
+        decorate={(entry) => {
+          // Skip decorate if content exceeds threshold
+          if (
+            currentPrompt.length > largeContentThreshold ||
+            !currentPrompt.length
+          )
+            return []
+          return decorate(entry)
+        }}
         renderLeaf={renderLeaf} // Pass the renderLeaf function
         onKeyDown={handleKeyDown}
+        onPaste={handlePaste} // Add the custom paste handler
         className={twMerge(
           className,
           disabled &&
diff --git a/web/screens/Thread/ThreadCenterPanel/ChatInput/index.tsx b/web/screens/Thread/ThreadCenterPanel/ChatInput/index.tsx
index 5662cd0c01..fbca6d2904 100644
--- a/web/screens/Thread/ThreadCenterPanel/ChatInput/index.tsx
+++ b/web/screens/Thread/ThreadCenterPanel/ChatInput/index.tsx
@@ -337,7 +337,7 @@ const ChatInput = () => {
         {activeSettingInputBox && (
           <div
             className={twMerge(
-              'absolute bottom-[6px] left-[1px] flex w-[calc(100%-10px)] items-center justify-between rounded-b-lg bg-[hsla(var(--center-panel-bg))] p-3 pr-0',
+              'absolute bottom-[5px] left-[1px] flex w-[calc(100%-10px)] items-center justify-between rounded-b-lg bg-[hsla(var(--center-panel-bg))] p-3 pr-0',
               !activeThread && 'bg-transparent',
               stateModel.loading && 'bg-transparent'
             )}