What is the difference between Qwen Plus 0728 (thinking) and Claude Opus 4?

Qwen Plus 0728 (thinking) is developed by Qwen while Claude Opus 4 is developed by Anthropic. Qwen Plus 0728 (thinking) has a 1.0M token context window vs Claude Opus 4's 200K. You can compare their actual outputs across 23 challenges on RIVAL to see how they differ in practice.

Which is better, Qwen Plus 0728 (thinking) or Claude Opus 4?

It depends on your use case. Qwen Plus 0728 (thinking) and Claude Opus 4 each have strengths in different areas. RIVAL lets you compare their real outputs side-by-side across 23 challenges so you can judge which fits your needs best.

How much does Qwen Plus 0728 (thinking) cost compared to Claude Opus 4?

Qwen Plus 0728 (thinking) costs $0.4/M input tokens and Claude Opus 4 costs $15/M input tokens. Qwen Plus 0728 (thinking) is $14.60/M cheaper per input. Check their side-by-side outputs on RIVAL to see if the price difference is justified by quality.

How can I compare Qwen Plus 0728 (thinking) and Claude Opus 4 on RIVAL?

This page shows a side-by-side comparison of Qwen Plus 0728 (thinking) and Claude Opus 4 across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.

Rival

Qwen Plus 0728 (thinking)vsClaude Opus 4

23 challenges

Why Qwen Plus 0728 (thinking)?

19.9x cheaper overall$0.40/M in · $4.00/M out

5x more context1.0M

4 months newerSep 2025

Why Claude Opus 4?

No standout advantages

Favorites

Qwen Plus 0728 (thinking)Claude Opus 4

Movie

The Shawshank Redemption

19948.7

Arrival

20167.6

Album

OK Computer

Radiohead

The Dark Side of the Moon

Pink Floyd

Book

Moby Dick

Herman Melville

Cien años de soledad

Gabriel García Márquez

City

Kyoto

Japan

Istanbul

Turkey

Game

The Legend of Zelda: Ocarina of Time

Adventure, Action4.4

Portal 2

Shooter, Puzzle4.6

12 / 23

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Qwen Plus 0728 (thinking)

Qwen · Sep 2025text

No content available for this output.

Claude Opus 4

Anthropic · May 2025text

I need to work through this step-by-step.

Given information:

Sally is a girl
Sally has 3 brothers
Each brother has 2 sisters

Since Sally is one of the sisters that each brother has, and each brother has 2 sisters total, that means th ere must be exactly 2 sisters in the family.

The 2 sisters are:

Sally
One other sister

Therefore, Sally has 1 sister.

Vote

2 / 23

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Qwen Plus 0728 (thinking)

Qwen · Sep 2025text

No content available for this output.

Claude Opus 4

Anthropic · May 2025text

Here are 5 jokes:

Why don't scientists trust atoms? Because they make up everything!
What do you call a bear with no teeth? A gummy bear!
Why did the scarecrow win an award? He was outstanding in his field!
What do you call a fake noodle? An impasta!
Why don't eggs tell jokes? They'd crack up!

All 5 jokes are unique - each one has a different setup and punchline, covering different topics (atoms/scie nce, bears, scarecrows, pasta, and eggs).

Vote

3 / 23

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Qwen Plus 0728 (thinking)

Qwen · Sep 2025svg

No content available for this output.

Claude Opus 4

Anthropic · May 2025svg

Vote

4 / 23

Pokémon Battle UI Recreationweb design

Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.

Qwen Plus 0728 (thinking)

Qwen · Sep 2025website

No content available for this output.

Claude Opus 4

Anthropic · May 2025website

No content available for this output.

Vote

5 / 23

Mario Level UI Recreationweb design

Recreate an interactive, classic Mario level in a single HTML file.

Qwen Plus 0728 (thinking)

Qwen · Sep 2025website

Couldn't render this response

This model didn't return a displayable web page for this challenge.

View raw output

# Super Mario Bros. Level Recreation

I've created a fully interactive Super Mario Bros. level that captures the spirit of Nintendo games. This single-page HTML features authentic gameplay mechanics, colorful pixel art, and classic Mario elements - all while staying true to the original game's charm.

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Super Mario Bros. - Castle Run</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Courier New', monospace;
            background: linear-gradient(to bottom, #6495ED, #1E90FF);
            height: 100vh;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            text-shadow: 2px 2px 0 #000;
        }
        
        .game-container {
            position: relative;
            width: 800px;
            height: 500px;
            overflow: hidden;
            border: 4px solid #DAA520;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
            background: linear-gradient(to bottom, #6495ED 70%, #2E8B57 70%);
        }
        
        .game-title {
            position: absolute;
            top: 10px;
            left: 0;
            width: 100%;
            text-align: center;
            font-size: 36px;
            font-weight: bold;
            color: #FFFFFF;
            text-shadow: 
                3px 0 0 #E52421, 
                -3px 0 0 #E52421,
                0 3px 0 #E52421,
                0 -3px 0 #E52421,
                3px 3px 0 #E52421,
                -3px 3px 0 #E52421,
                3px -3px 0 #E52421,
                -3px -3px 0 #E52421;
            z-index: 10;
            letter-spacing: 3px;
            text-transform: uppercase;
        }
        
        .ui-overlay {
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            gap: 20px;
            z-index: 10;
        }
        
        .ui-element {
            background: rgba(0, 0, 0, 0.5);
            padding: 8px 15px;
            border-radius: 20px;
            font-weight: bold;
            min-width: 80px;
            text-align: center;
        }
        
        .ui-element span {
            color: #FFFF00;
            font-size: 24px;
            display: block;
        }
        
        .level-container {
            position: absolute;
            width: 4000px;
            height: 500px;
            transform: translateX(0);
            transition: transform 0.1s linear;
        }
        
        /* Ground and platforms */
        .ground {
            position: absolute;
            bottom: 0;
            width: 100%;
            height: 100px;
            background: #8B4513;
            border-top: 4px solid #DAA520;
        }
        
        .platform {
            position: absolute;
            background: #8B4513;
            border: 2px solid #DAA520;
            border-bottom: none;
        }
        
        /* Pipes */
        .pipe {
            position: absolute;
            background: #00A86B;
            border: 2px solid #000;
            border-bottom: none;
        }
        
        .pipe-top {
            position: absolute;
            background: #00A86B;
            border: 2px solid #000;
            border-top: none;
            border-radius: 0 0 10px 10px;
        }
        
        /* Coins */
        .coin {
            position: absolute;
            width: 20px;
            height: 20px;
            background: #FFD700;
            border-radius: 50%;
            box-shadow: 0 0 5px #FFA500, inset 0 0 5px #DAA520;
            animation: coinSpin 0.5s infinite alternate;
        }
        
        @keyframes coinSpin {
            from { transform: scale(1); }
            to { transform: scale(1.1); }
        }
        
        /* Question blocks */
        .question-block {
            position: absolute;
            width: 40px;
            height: 40px;
            background: #E5D9B6;
            border: 2px solid #000;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: bold;
            color: #000;
            animation: blockBounce 1.5s infinite;
        }
        
        @keyframes blockBounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        
        .used-block {
            background: #A9A9A9;
        }
        
        /* Mario character */
        #mario {
            position: absolute;
            width: 40px;
            height: 60px;
            z-index: 10;
            transition: transform 0.1s;
        }
        
        /* Mario CSS art */
        #mario::before {
            content: '';
            position: absolute;
            width: 40px;
            height: 60px;
            background: #E52421;
            border-radius: 20px 20px 0 0;
            z-index: 2;
        }
        
        #mario::after {
            content: '';
            position: absolute;
            width: 40px;
            height: 15px;
            background: #E52421;
            top: -5px;
            border-radius: 20px 20px 0 0;
            z-index: 3;
        }
        
        .mario-hat {
            position: absolute;
            width: 40px;
            height: 15px;
            background: #E52421;
            top: -10px;
            border-radius: 20px 20px 0 0;
            z-index: 4;
        }
        
        .mario-face {
            position: absolute;
            width: 30px;
            height: 25px;
            background: #FFB6C1;
            top: 20px;
            left: 5px;
            border-radius: 15px 15px 0 0;
            z-index: 5;
        }
        
        .mario-eyes {
            position: absolute;
            width: 8px;
            height: 8px;
            background: #000;
            border-radius: 50%;
            top: 25px;
        }
        
        .mario-eye-left {
            left: 8px;
        }
        
        .mario-eye-right {
            right: 8px;
        }
        
        .mario-mustache {
            position: absolute;
            width: 20px;
            height: 5px;
            background: #000;
            top: 35px;
            left: 10px;
            border-radius: 0 0 5px 5px;
        }
        
        .mario-arms {
            position: absolute;
            width: 10px;
            height: 20px;
            background: #FFB6C1;
            top: 30px;
        }
        
        .mario-arm-left {
            left: -5px;
            border-radius: 5px 0 0 5px;
        }
        
        .mario-arm-right {
            right: -5px;
            border-radius: 0 5px 5px 0;
        }
        
        .mario-legs {
            position: absolute;
            width: 15px;
            height: 20px;
            background: #000;
            bottom: 0;
        }
        
        .mario-leg-left {
            left: 5px;
            border-radius: 0 0 3px 3px;
        }
        
        .mario-leg-right {
            right: 5px;
            border-radius: 0 0 3px 3px;
        }
        
        /* Goomba enemy */
        .goomba {
            position: absolute;
            width: 40px;
            height: 30px;
            z-index: 5;
        }
        
        .goomba::before {
            content: '';
            position: absolute;
            width: 40px;
            height: 30px;
            background: #8B4513;
            border-radius: 50% 50% 0 0;
        }
        
        .goomba::after {
            content: '';
            position: absolute;
            width: 40px;
            height: 10px;
            background: #000;
            bottom: -5px;
            border-radius: 0 0 10px 10px;
        }
        
        .goomba-eye {
            position: absolute;
            width: 8px;
            height: 8px;
            background: #000;
            border-radius: 50%;
            top: 5px;
        }
        
        .goomba-eye-left {
            left: 8px;
        }
        
        .goomba-eye-right {
            right: 8px;
        }
        
        /* Koopa Troopa */
        .koopa {
            position: absolute;
            width: 40px;
            height: 45px;
            z-index: 5;
        }
        
        .koopa-shell {
            position: absolute;
            width: 40px;
            height: 30px;
            background: #008000;
            border-radius: 50% 50% 0 0;
            top: 0;
        }
        
        .koopa-body {
            position: absolute;
            width: 30px;
            height: 25px;
            background: #FFB6C1;
            border-radius: 15px 15px 0 0;
            top: 15px;
            left: 5px;
        }
        
        .koopa-eye {
            position: absolute;
            width: 6px;
            height: 6px;
            background: #000;
            border-radius: 50%;
            top: 20px;
        }
        
        .koopa-eye-left {
            left: 10px;
        }
        
        .koopa-eye-right {
            right: 10px;
        }
        
        .koopa-leg {
            position: absolute;
            width: 8px;
            height: 15px;
            background: #FFB6C1;
            bottom: 0;
            border-radius: 2px;
        }
        
        /* Flag */
        .flag-pole {
            position: absolute;
            width: 8px;
            height: 300px;
            background: #D3D3D3;
            bottom: 100px;
            left: 3700px;
        }
        
        .flag {
            position: absolute;
            width: 30px;
            height: 30px;
            background: #FF0000;
            bottom: 250px;
            left: 3690px;
            border: 1px solid #000;
        }
        
        /* Castle */
        .castle {
            position: absolute;
            width: 200px;
            height: 200px;
            background: #D3D3D3;
            bottom: 100px;
            right: 50px;
            border: 2px solid #000;
        }
        
        .castle-top {
            position: absolute;
            width: 220px;
            height: 40px;
            background: #8B4513;
            bottom: 200px;
            right: 40px;
        }
        
        .castle-tower {
            position: absolute;
            width: 60px;
            height: 80px;
            background: #D3D3D3;
            border: 2px solid #000;
        }
        
        .castle-tower-left {
            bottom: 180px;
            right: 190px;
        }
        
        .castle-tower-right {
            bottom: 180px;
            right: 30px;
        }
        
        .tower-top {
            position: absolute;
            width: 70px;
            height: 20px;
            background: #8B4513;
            border: 2px solid #000;
        }
        
        .tower-top-left {
            bottom: 260px;
            right: 185px;
        }
        
        .tower-top-right {
            bottom: 260px;
            right: 25px;
        }
        
        .castle-door {
            position: absolute;
            width: 50px;
            height: 80px;
            background: #8B4513;
            bottom: 100px;
            right: 125px;
            border: 1px solid #000;
        }
        
        /* Coins collection effect */
        .coin-collected {
            animation: coinCollect 0.5s forwards;
        }
        
        @keyframes coinCollect {
            to {
                transform: translateY(-30px) scale(0.5);
                opacity: 0;
            }
        }
        
        /* Jump effect */
        .mario-jump {
            animation: marioJump 0.3s forwards;
        }
        
        @keyframes marioJump {
            50% { transform: translateY(-15px); }
            100% { transform: translateY(0); }
        }
        
        /* Game over */
        .game-over {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 100;
            display: none;
        }
        
        .game-over h2 {
            font-size: 48px;
            color: #FF0000;
            margin-bottom: 20px;
            text-shadow: 3px 3px 0 #000;
        }
        
        .game-over p {
            font-size: 24px;
            margin: 10px 0;
        }
        
        .restart-btn {
            background: #E52421;
            color: white;
            border: none;
            padding: 12px 30px;
            font-size: 20px;
            font-weight: bold;
            border-radius: 30px;
            margin-top: 20px;
            cursor: pointer;
            transition: all 0.2s;
            text-transform: uppercase;
            letter-spacing: 2px;
            box-shadow: 0 4px 0 #A00000;
        }
        
        .restart-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 0 #A00000;
        }
        
        .restart-btn:active {
            transform: translateY(2px);
            box-shadow: 0 2px 0 #A00000;
        }
        
        /* Controls info */
        .controls {
            position: absolute;
            bottom: 15px;
            left: 0;
            width: 100%;
            text-align: center;
            font-size: 16px;
            background: rgba(0, 0, 0, 0.3);
            padding: 5px;
        }
        
        .controls span {
            background: rgba(0, 0, 0, 0.3);
            padding: 0 10px;
            border-radius: 15px;
            margin: 0 5px;
            font-weight: bold;
        }
        
        /* Score animation */
        .score-popup {
            position: absolute;
            color: #FFFF00;
            font-weight: bold;
            z-index: 20;
            animation: scoreRise 1s forwards;
        }
        
        @keyframes scoreRise {
            0% { transform: translateY(0); opacity: 1; }
            100% { transform: translateY(-30px); opacity: 0; }
        }
        
        /* Power-up effects */
        .starman {
            animation: starman 0.2s infinite;
        }
        
        @keyframes starman {
            0% { filter: hue-rotate(0deg); }
            50% { filter: hue-rotate(180deg); }
            100% { filter: hue-rotate(360deg); }
        }
        
        /* Hidden elements for sound */
        .sound {
            display: none;
        }
    </style>
</head>
<body>
    <div class="game-container">
        <div class="game-title">Super Mario Bros. - Castle Run</div>
        
        <div class="ui-overlay">
            <div class="ui-element">
                COINS<br><span id="coin-count">0</span>
            </div>
            <div class="ui-element">
                SCORE<br><span id="score">0</span>
            </div>
            <div class="ui-element">
                WORLD<br><span>1-1</span>
            </div>
        </div>
        
        <div class="level-container" id="level">
            <div class="ground"></div>
            
            <!-- Platforms -->
            <div class="platform" style="left: 200px; top: 300px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 400px; top: 250px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 600px; top: 200px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 800px; top: 150px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 1000px; top: 200px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 1200px; top: 250px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 1400px; top: 300px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 1600px; top: 250px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 1800px; top: 200px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 2000px; top: 150px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 2200px; top: 200px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 2400px; top: 250px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 2600px; top: 300px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 2800px; top: 250px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 3000px; top: 200px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 3200px; top: 150px; width: 100px; height: 20px;"></div>
            <div class="platform" style="left: 3400px; top: 100px; width: 100px; height: 20px;"></div>
            
            <!-- Pipes -->
            <div class="pipe" style="left: 300px; bottom: 100px; width: 60px; height: 80px;"></div>
            <div class="pipe-top" style="left: 300px; bottom: 180px; width: 60px; height: 20px;"></div>
            
            <div class="pipe" style="left: 700px; bottom: 100px; width: 80px; height: 100px;"></div>
            <div class="pipe-top" style="left: 700px; bottom: 200px; width: 80px; height: 20px;"></div>
            
            <div class="pipe" style="left: 1100px; bottom: 100px; width: 100px; height: 120px;"></div>
            <div class="pipe-top" style="left: 1100px; bottom: 220px; width: 100px; height: 20px;"></div>
            
            <!-- Question blocks -->
            <div class="question-block" style="left: 500px; bottom: 160px;" id="qblock1"></div>
            <div class="question-block" style="left: 900px; bottom: 160px;" id="qblock2"></div>
            <div class="question-block" style="left: 1300px; bottom: 160px;" id="qblock3"></div>
            <div class="question-block" style="left: 1700px; bottom: 160px;" id="qblock4"></div>
            <div class="question-block" style="left: 2100px; bottom: 160px;" id="qblock5"></div>
            <div class="question-block" style="left: 2500px; bottom: 160px;" id="qblock6"></div>
            <div class="question-block" style="left: 2900px; bottom: 160px;" id="qblock7"></div>
            
            <!-- Coins -->
            <div class="coin" style="left: 250px; bottom: 130px;"></div>
            <div class="coin" style="left: 270px; bottom: 130px;"></div>
            <div class="coin" style="left: 290px; bottom: 130px;"></div>
            <div class="coin" style="left: 450px; bottom: 80px;"></div>
            <div class="coin" style="left: 470px; bottom: 80px;"></div>
            <div class="coin" style="left: 490px; bottom: 80px;"></div>
            <div class="coin" style="left: 650px; bottom: 50px;"></div>
            <div class="coin" style="left: 670px; bottom: 50px;"></div>
            <div class="coin" style="left: 690px; bottom: 50px;"></div>
            <div class="coin" style="left: 850px; bottom: 0px;"></div>
            <div class="coin" style="left: 870px; bottom: 0px;"></div>
            <div class="coin" style="left: 890px; bottom: 0px;"></div>
            <div class="coin" style="left: 1050px; bottom: 50px;"></div>
            <div class="coin" style="left: 1070px; bottom: 50px;"></div>
            <div class="coin" style="left: 1090px; bottom: 50px;"></div>
            <div class="coin" style="left: 1250px; bottom: 80px;"></div>
            <div class="coin" style="left: 1270px; bottom: 80px;"></div>
            <div class="coin" style="left: 1290px; bottom: 80px;"></div>
            <div class="coin" style="left: 1450px; bottom: 130px;"></div>
            <div class="coin" style="left: 1470px; bottom: 130px;"></div>
            <div class="coin" style="left: 1490px; bottom: 130px;"></div>
            <div class="coin" style="left: 1650px; bottom: 80px;"></div>
            <div class="coin" style="left: 1670px; bottom: 80px;"></div>
            <div class="coin" style="left: 1690px; bottom: 80px;"></div>
            <div class="coin" style="left: 1850px; bottom: 50px;"></div>
            <div class="coin" style="left: 1870px; bottom: 50px;"></div>
            <div class="coin" style="left: 1890px; bottom: 50px;"></div>
            <div class="coin" style="left: 2050px; bottom: 0px;"></div>
            <div class="coin" style="left: 2070px; bottom: 0px;"></div>
            <div class="coin" style="left: 2090px; bottom: 0px;"></div>
            <div class="coin" style="left: 2250px; bottom: 50px;"></div>
            <div class="coin" style="left: 2270px; bottom: 50px;"></div>
            <div class="coin" style="left: 2290px; bottom: 50px;"></div>
            <div class="coin" style="left: 2450px; bottom: 80px;"></div>
            <div class="coin" style="left: 2470px; bottom: 80px;"></div>
            <div class="coin" style="left: 2490px; bottom: 80px;"></div>
            <div class="coin" style="left: 2650px; bottom: 130px;"></div>
            <div class="coin" style="left: 2670px; bottom: 130px;"></div>
            <div class="coin" style="left: 2690px; bottom: 130px;"></div>
            <div class="coin" style="left: 2850px; bottom: 80px;"></div>
            <div class="coin" style="left: 2870px; bottom: 80px;"></div>
            <div class="coin" style="left: 2890px; bottom: 80px;"></div>
            <div class="coin" style="left: 3050px; bottom: 50px;"></div>
            <div class="coin" style="left: 3070px; bottom: 50px;"></div>
            <div class="coin" style="left: 3090px; bottom: 50px;"></div>
            <div class="coin" style="left: 3250px; bottom: 0px;"></div>
            <div class="coin" style="left: 3270px; bottom: 0px;"></div>
            <div class="coin" style="left: 3290px; bottom: 0px;"></div>
            <div class="coin" style="left: 3450px; bottom: -40px;"></div>
            <div class="coin" style="left: 3470px; bottom: -40px;"></div>
            <div class="coin" style="left: 3490px; bottom: -40px;"></div>
            
            <!-- Enemies -->
            <div class="goomba" style="left: 400px; bottom: 100px;"></div>
            <div class="goomba" style="left: 800px; bottom: 100px;"></div>
            <div class="goomba" style="left: 1200px; bottom: 100px;"></div>
            <div class="goomba" style="left: 1600px; bottom: 100px;"></div>
            <div class="goomba" style="left: 2000px; bottom: 100px;"></div>
            <div class="goomba" style="left: 2400px; bottom: 100px;"></div>
            <div class="goomba" style="left: 2800px; bottom: 100px;"></div>
            <div class="goomba" style="left: 3200px; bottom: 100px;"></div>
            
            <div class="koopa" style="left: 1000px; bottom: 100px;"></div>
            <div class="koopa" style="left: 1800px; bottom: 100px;"></div>
            <div class="koopa" style="left: 2600px; bottom: 100px;"></div>
            <div class="koopa" style="left: 3400px; bottom: 100px;"></div>
            
            <!-- Flag and castle -->
            <div class="flag-pole"></div>
            <div class="flag"></div>
            <div class="castle"></div>
            <div class="castle-top"></div>
            <div class="castle-tower castle-tower-left"></div>
            <div class="castle-tower castle-tower-right"></div>
            <div class="tower-top tower-top-left"></div>
            <div class="tower-top tower-top-right"></div>
            <div class="castle-door"></div>
            
            <!-- Mario -->
            <div id="mario">
                <div class="mario-hat"></div>
                <div class="mario-face">
                    <div class="mario-eyes mario-eye-left"></div>
                    <div class="mario-eyes mario-eye-right"></div>
                    <div class="mario-mustache"></div>
                </div>
                <div class="mario-arms mario-arm-left"></div>
                <div class="mario-arms mario-arm-right"></div>
                <div class="mario-legs mario-leg-left"></div>
                <div class="mario-legs mario-leg-right"></div>
            </div>
        </div>
        
        <div class="controls">
            CONTROLS: <span>← →</span> Move | <span>SPACE</span> Jump | <span>ENTER</span> Restart
        </div>
        
        <div class="game-over" id="game-over">
            <h2>GAME OVER</h2>
            <p>Your adventure ends here!</p>
            <p>Coins collected: <span id="final-coins">0</span></p>
            <p>Final score: <span id="final-score">0</span></p>
            <button class="restart-btn" id="restart-btn">Play Again</button>
        </div>
        
        <!-- Sound effects -->
        <audio id="coin-sound" class="sound">
            <source src="data:audio/wav;base64,UklGRiQDAABXQVZFZm10IBAAAAABAAEAiBUAAIgVAAABAAgAZGF0YQADAACBhYqFbF1fdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBhQkFfdJivrJBh......

Anthropic · May 2025website

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Retro macOS UI Recreationweb design

Recreate a classic, retro, macOS Desktop UI — make it interactive and nostalgic, make it as interactive as you can, you can be creative.. Feel free to showcase your skills. The entire application must be a single-page self-contained HTML file.

Qwen Plus 0728 (thinking)

Qwen · Sep 2025website

Claude Opus 4

Anthropic · May 2025website

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