---
title: ChatGPT Clone Example
description: Open-source ChatGPT clone built in React with assistant-ui — centered welcome composer, high-contrast user bubbles, tooltipped controls, and full assistant action bar.
---

import { ChatGPT } from "@/components/examples/chatgpt";

<div className="not-prose h-[600px]">
  <ChatGPT />
</div>

## Overview

The ChatGPT Clone demonstrates how to customize assistant-ui to match OpenAI's ChatGPT interface. This version mirrors the current chatgpt.com layout: a centered welcome composer, tooltipped attachment/dictation/voice controls, high-contrast user bubbles with Copy + Edit actions, and an always-visible assistant action bar with thumbs, share, speak, reload, and more.

## Features

- **Theme-Aware**: White light mode (`#ffffff`) and black dark mode (`#000000`) with ChatGPT-style `#212121` composer surfaces
- **Centered Empty State**: "Where should we begin?" heading + composer rendered together above the viewport center
- **Tooltipped Composer Controls**: Add attachment, Dictate, and voice-mode buttons use ChatGPT's circular controls and hover tooltips
- **Four-State Primary Action**: Cancel (running), StopDictation (recording), Send (typing), Dictate + voice mode (idle)
- **Assistant Action Bar**: Always visible — Copy, Good response, Bad response, Read aloud, Share, Regenerate, More
- **User Bubble**: Right-aligned high-contrast bubble with Copy + Edit actions below on hover
- **Sticky Footer**: Composer + "ChatGPT can make mistakes" disclaimer at the bottom of the chat

## Quick Start

```bash
npx assistant-ui add thread
```

## Code

The ChatGPT clone splits into an `EmptyState` and a sticky chat layout. The same composer shell is shared by both:

```tsx
import {
  AuiIf,
  ThreadPrimitive,
  ComposerPrimitive,
  ActionBarPrimitive,
} from "@assistant-ui/react";
import { PlusIcon } from "lucide-react";
import { TooltipIconButton } from "@/components/assistant-ui/tooltip-icon-button";

export const ChatGPT = () => (
  <ThreadPrimitive.Root className="bg-white text-[#0d0d0d] dark:bg-black dark:text-[#ececec]">
    <AuiIf condition={(s) => s.thread.isEmpty}>
      <EmptyState />
    </AuiIf>
    <AuiIf condition={(s) => !s.thread.isEmpty}>
      <ThreadPrimitive.Viewport>
        <ThreadPrimitive.Messages />
        <ThreadPrimitive.ViewportFooter className="sticky bottom-0">
          <Composer placeholder="Ask anything" />
          <p>ChatGPT can make mistakes. Check important info.</p>
        </ThreadPrimitive.ViewportFooter>
      </ThreadPrimitive.Viewport>
    </AuiIf>
  </ThreadPrimitive.Root>
);

const Composer = ({ placeholder }: { placeholder: string }) => (
  <ComposerPrimitive.Root className="rounded-[28px] border border-[#e5e5e5] bg-white dark:border-transparent dark:bg-[#212121]">
    <div className="flex items-end gap-1">
      <ComposerPrimitive.AddAttachment asChild>
        <TooltipIconButton tooltip="Add photos & files" aria-label="Add attachment">
          <PlusIcon />
        </TooltipIconButton>
      </ComposerPrimitive.AddAttachment>
      <ComposerPrimitive.Input autoFocus rows={1} placeholder={placeholder} />
      <PrimaryAction />
    </div>
  </ComposerPrimitive.Root>
);
```

### Four-State Primary Action

```tsx
<AuiIf condition={(s) => s.thread.isRunning}>
  <ComposerPrimitive.Cancel />
</AuiIf>
<AuiIf condition={(s) => !s.thread.isRunning && s.composer.dictation != null}>
  <ComposerPrimitive.StopDictation />
</AuiIf>
<AuiIf
  condition={(s) =>
    !s.thread.isRunning && s.composer.dictation == null && !s.composer.isEmpty
  }
>
  <ComposerPrimitive.Send />
</AuiIf>
<AuiIf
  condition={(s) =>
    !s.thread.isRunning && s.composer.dictation == null && s.composer.isEmpty
  }
>
  <ComposerPrimitive.Dictate asChild>
    <TooltipIconButton tooltip="Dictate" aria-label="Dictate">
      <Mic />
    </TooltipIconButton>
  </ComposerPrimitive.Dictate>
  <TooltipIconButton
    tooltip="Use voice mode"
    aria-hidden="true"
    tabIndex={-1}
    className="bg-[#0d0d0d] text-white dark:bg-white dark:text-black"
  >
    <AudioLines />
  </TooltipIconButton>
</AuiIf>
```

The conditions are mutually exclusive in priority order (`Cancel > StopDictation > Send > Dictate/voice mode`) so dictation can be paused even when transcribed text is in the composer.

### User Bubble and Actions

```tsx
<MessagePrimitive.Root className="flex flex-col items-end gap-1">
  <div className="max-w-[70%] rounded-[22px] bg-[#0d0d0d] px-4 py-2.5 text-white dark:bg-[#ececec] dark:text-[#0d0d0d]">
    <MessagePrimitive.Parts />
  </div>

  <ActionBarPrimitive.Root autohide="always">
    <ActionBarPrimitive.Copy asChild>
      <TooltipIconButton tooltip="Copy" />
    </ActionBarPrimitive.Copy>
    <ActionBarPrimitive.Edit asChild>
      <TooltipIconButton tooltip="Edit" />
    </ActionBarPrimitive.Edit>
  </ActionBarPrimitive.Root>
</MessagePrimitive.Root>
```

### Color Palette

| Element | Light | Dark |
|---------|-------|------|
| Background | `#ffffff` | `#000000` |
| Composer surface | `#ffffff` | `#212121` |
| Composer border / edge | `#e5e5e5` | `transparent` + inset white edge |
| Primary text | `#0d0d0d` | `#ececec` |
| Muted text | `#5d5d5d` | `#afafaf` |
| User bubble | `#0d0d0d` (white text) | `#ececec` (`#0d0d0d` text) |
| Action icon | `#5d5d5d` | `#cdcdcd` |
| Icon hover background | black at 7% | white at 15% |
| Send / voice button | `#0d0d0d` (white icon) | `#ffffff` (black icon) |

### Styling Details

- **Composer**: `rounded-[28px]` with a thin light-mode border, dark `#212121` surface, and an inset dark-mode edge
- **Empty Layout**: 24px/400 heading + composer raised above center; no avatar
- **Composer Buttons**: 36px circular controls with hover tooltips and background-only hover states
- **Assistant Action Bar**: 32px controls, 8px radius, zero gap, background-only hover, and tooltips on every action
- **User Bubble**: `rounded-[22px]`, 70% max width, high-contrast theme colors, Copy + Edit actions below on hover

## Source

<SourceLink href="https://github.com/assistant-ui/assistant-ui/blob/main/apps/docs/components/examples/chatgpt.tsx" />
