GPT-4o
Challenge Creator
Creative Challenge
"Cat playing a violin under a starry sky."
<svg viewBox="0 0 300 300" xmlns="http://www.w3.org/2000/svg" aria-label="Cat playing a violin under a starry sky" role="img" shape-rendering="geometricPrecision">
<defs>
<!-- Gradient for night sky -->
<radialGradient id="skyGradient" cx="0.5" cy="0.7" r="0.8">
<stop offset="0%" stop-color="#0a1a3f"/>
<stop offset="70%" stop-color="#001d50"/>
<stop offset="100%" stop-color="#000a1a"/>
</radialGradient>
<!-- Gradient for moon -->
<radialGradient id="moonGlow" cx="0.4" cy="0.4" r="0.5">
<stop offset="0%" stop-color="#fcf8e8" stop-opacity="1"/>
<stop offset="100%" stop-color="#cfc89f" stop-opacity="0"/>
</radialGradient>
<!-- Fur gradient on cat -->
<radialGradient id="catFur1" cx="0.5" cy="0.6" r="0.8" fx="0.6" fy="0.8">
<stop offset="0%" stop-color="#d1a15e"/>
<stop offset="40%" stop-color="#a05f2c"/>
<stop offset="100%" stop-color="#6b3a14"/>
</radialGradient>
<radialGradient id="catFur2" cx="0.5" cy="0.4" r="0.7" fx="0.5" fy="0.5">
<stop offset="0%" stop-color="#f0ce9c"/>
<stop offset="100%" stop-color="#a15f2c"/>
</radialGradient>
<!-- Violin wood texture pattern -->
<pattern id="woodTexture" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse" patternTransform="rotate(15)">
<rect width="20" height="20" fill="#8b5a2b"/>
<path d="M0 5 L20 5 M0 10 L20 10 M0 15 L20 15" stroke="#d4a660" stroke-width="1" opacity="0.3" />
</pattern>
<!-- Glow around stars -->
<radialGradient id="starGlow" cx="0.5" cy="0.5" r="1">
<stop offset="0%" stop-color="#ffffff" stop-opacity="0.8"/>
<stop offset="100%" stop-color="#ffffff" stop-opacity="0"/>
</radialGradient>
<!-- String highlight for violin -->
<linearGradient id="violinStringGrad" x1="0" y1="0" x2="0" y2="1">
<stop offset="0%" stop-color="#fff" stop-opacity="0.9"/>
<stop offset="100%" stop-color="#aaa" stop-opacity="0.3"/>
</linearGradient>
<!-- Cat eyes gradient -->
<radialGradient id="eyeGradient" cx="0.5" cy="0.5" r="0.5">
<stop offset="0%" stop-color="#e3ff83"/>
<stop offset="100%" stop-color="#557f04"/>
</radialGradient>
<!-- Bow hair gradient -->
<linearGradient id="bowHairGrad" x1="0" y1="0" x2="1" y2="1">
<stop offset="0%" stop-color="#f3e8d4"/>
<stop offset="100%" stop-color="#a3886b"/>
</linearGradient>
</defs>
<!-- Background sky -->
<rect width="300" height="300" fill="url(#skyGradient)" />
<!-- Moon with glow and subtle craters -->
<circle cx="230" cy="70" r="40" fill="url(#moonGlow)" />
<circle cx="230" cy="70" r="35" fill="#fcf8e8" />
<circle cx="218" cy="60" r="5" fill="#d6d0b0" opacity="0.4"/>
<circle cx="250" cy="75" r="6" fill="#d6d0b0" opacity="0.3"/>
<circle cx="240" cy="90" r="4" fill="#d6d0b0" opacity="0.35"/>
<!-- Stars scattered with different sizes and glows -->
<g stroke="none" fill="url(#starGlow)">
<circle cx="40" cy="40" r="3" />
<circle cx="110" cy="25" r="2" />
<circle cx="75" cy="80" r="2.5" />
<circle cx="150" cy="50" r="3" />
<circle cx="200" cy="120" r="2" />
<circle cx="50" cy="150" r="2.8" />
<circle cx="130" cy="150" r="1.8" />
<circle cx="250" cy="180" r="3.2" />
<circle cx="270" cy="90" r="2.1" />
<circle cx="220" cy="210" r="2.5" />
</g>
<!-- Shooting star -->
<g>
<line x1="180" y1="30" x2="220" y2="20" stroke="#fff9cc" stroke-width="1.2" stroke-linecap="round" opacity="0.6" />
<circle cx="220" cy="20" r="3.5" fill="url(#starGlow)" />
<circle cx="220" cy="20" r="2" fill="#fff" />
</g>
<!-- Ground: abstract stylized hill with abstraction of grass -->
<path d="M0 260 Q150 230 300 260 L300 300 L0 300 Z" fill="#1b2b20" />
<g stroke="#2a4d2b" stroke-width="1" fill="none" opacity="0.7">
<path d="M20 270 L25 255 M35 268 L40 253 M60 265 L65 250 M90 267 L95 252 M110 269 L115 254 M150 265 L155 250 M180 267 L185 252 M210 270 L215 255 M240 268 L245 253 M270 265 L275 250" />
</g>
<!-- Cat figure group -->
<g transform="translate(70,180) scale(1.2)" >
<!-- Tail: elegant, curling tail with multiple shade layers -->
<path d="M10 70 C0 50 45 55 40 25 Q38 10 15 25" fill="url(#catFur1)" stroke="#5a3811" stroke-width="1" />
<path d="M10 70 C5 55 42 50 38 25 Q37 12 15 25" fill="url(#catFur2)" opacity="0.8" />
<!-- Body main -->
<ellipse cx="60" cy="70" rx="35" ry="45" fill="url(#catFur1)" stroke="#543712" stroke-width="1.4" />
<!-- Body shadow contour -->
<ellipse cx="60" cy="72" rx="35" ry="38" fill="url(#catFur2)" opacity="0.9" />
<!-- Chest patch softer -->
<ellipse cx="62" cy="90" rx="25" ry="30" fill="url(#catFur2)" opacity="0.65" />
<!-- Neck -->
<ellipse cx="87" cy="40" rx="15" ry="20" fill="url(#catFur1)" stroke="#5a3811" stroke-width="1" />
<!-- Head shape: stylized cat head with foxlike ears -->
<path d="M75 0
Q90 10 95 30
Q125 35 115 55
Q105 75 75 70
Q55 50 65 20
Q68 5 75 0 Z"
fill="url(#catFur1)" stroke="#532f0c" stroke-width="1.3" />
<!-- Head deep shadow -->
<path d="M85 20 Q100 30 97 50 Q85 50 75 65 Q70 50 85 35 Z" fill="url(#catFur2)" opacity="0.6" />
<!-- Ears -->
<polygon points="68,5 72,25 60,20" fill="#8b4d0f" stroke="#5a3811" stroke-width="0.9" />
<polygon points="105,10 110,30 95,30" fill="#8b4d0f" stroke="#5a3811" stroke-width="0.9" />
<!-- Ear inner shading -->
<path d="M70 15 Q75 25 65 23 Z" fill="#d9be8c" opacity="0.7"/>
<path d="M102 19 Q107 28 97 27 Z" fill="#d9be8c" opacity="0.7"/>
<!-- Eyes stylized almond shape -->
<g>
<ellipse cx="88" cy="45" rx="9" ry="5" fill="black" />
<ellipse cx="88" cy="45" rx="7" ry="4" fill="url(#eyeGradient)" />
<circle cx="86" cy="43" r="2" fill="#faffd2" />
<ellipse cx="75" cy="42" rx="8" ry="4.5" fill="black" />
<ellipse cx="75" cy="42" rx="6.5" ry="3.5" fill="url(#eyeGradient)" />
<circle cx="73" cy="40" r="1.8" fill="#faffd2" />
</g>
<!-- Nose: small and delicate -->
<path d="M81 58 L83 62 L79 62 Z" fill="#733e1d" />
<!-- Mouth: subtle smile curve -->
<path d="M75 65 Q81 70 86 65" stroke="#4a290e" stroke-width="1" fill="none" />
<!-- Whiskers -->
<g stroke="#4a290e" stroke-width="1" stroke-linecap="round" opacity="0.7">
<path d="M65 60 L40 58 M67 65 L38 63" />
<path d="M98 60 L120 58 M95 65 L125 62" />
</g>
<!-- Violin neck -->
<rect x="35" y="20" width="10" height="70" fill="#7b4518" stroke="#532f0c" stroke-width="1" rx="2" ry="2" />
<rect x="39" y="23" width="3" height="60" fill="url(#woodTexture)" />
<!-- Violin body -->
<path d="M30 80 Q60 110 95 70 Q60 130 30 80" fill="url(#woodTexture)" stroke="#6e3e10" stroke-width="1.5" />
<path d="M42 75 Q50 85 72 65" stroke="#40250a" stroke-width="1" fill="none" />
<ellipse cx="60" cy="85" rx="12" ry="17" fill="none" stroke="#532a04" stroke-width="1.2" />
<!-- Violin f-holes, stylized and elegant -->
<path d="M53 85 Q52 75 57 75 Q55 90 52 90" fill="#3b1f06" />
<path d="M69 80 Q68 70 73 70 Q71 85 68 85" fill="#3b1f06" />
<!-- Violin strings: 4 strings, thin lines -->
<g stroke="url(#violinStringGrad)" stroke-width="0.7" stroke-linecap="round">
<line x1="40" y1="30" x2="83" y2="90" />
<line x1="43" y1="30" x2="86" y2="90" />
<line x1="46" y1="30" x2="89" y2="90" />
<line x1="49" y1="30" x2="92" y2="90" />
</g>
<!-- Bow: slender, curved, held by cat's paw -->
<path d="M20 40 Q25 10 38 35 Q44 55 15 60" fill="none" stroke="url(#bowHairGrad)" stroke-width="4" stroke-linecap="round" />
<path d="M19 38 Q22 20 35 33" fill="none" stroke="#6f4a1e" stroke-width="2" stroke-linecap="round" />
<!-- Cat paw on bow -->
<g fill="url(#catFur2)" stroke="#5a3811" stroke-width="1" >
<ellipse cx="25" cy="55" rx="8" ry="12" />
<!-- Paw toes -->
<ellipse cx="17" cy="50" rx="3" ry="5" />
<ellipse cx="25" cy="45" rx="3" ry="5" />
<ellipse cx="33" cy="50" rx="3" ry="5" />
</g>
<!-- Other paw: supporting violin -->
<g fill="url(#catFur1)" stroke="#5a3811" stroke-width="1">
<ellipse cx="85" cy="115" rx="11" ry="15" />
<ellipse cx="75" cy="115" rx="5" ry="8" />
<ellipse cx="95" cy="115" rx="5" ry="8" />
</g>
</g>
<!-- Subtle music notes floating up: visual metaphor -->
<g stroke="none" fill="#a7c8ff" opacity="0.7" >
<text x="130" y="140" font-family="Georgia, serif" font-size="30" font-weight="bold" transform="rotate(-35 130 140)" >♪</text>
<text x="140" y="120" font-family="Georgia, serif" font-size="20" font-weight="bold" transform="rotate(-40 140 120)" >♬</text>
<text x="180" y="130" font-family="Georgia, serif" font-size="16" font-weight="bold" transform="rotate(-25 180 130)" >♫</text>
<text x="165" y="110" font-family="Georgia, serif" font-size="24" font-weight="bold" transform="rotate(-30 165 110)" >♩</text>
</g>
</svg>
<svg viewBox="0 0 300 300" xmlns="http://www.w3.org/2000/svg">
<defs>
<linearGradient id="skyGradient" x1="0" y1="0" x2="0" y2="1">
<stop offset="0%" stop-color="#0d1a2b"/>
<stop offset="100%" stop-color="#1c2331"/>
</linearGradient>
<filter id="glow">
<feGaussianBlur stdDeviation="1" result="coloredBlur"/>
<feMerge>
<feMergeNode in="coloredBlur"/>
<feMergeNode in="SourceGraphic"/>
</feMerge>
</filter>
<linearGradient id="violinGradient" x1="0" y1="0" x2="0" y2="1">
<stop offset="0%" stop-color="#b5651d"/>
<stop offset="100%" stop-color="#8b4513"/>
</linearGradient>
</defs>
<!-- Background -->
<rect width="300" height="300" fill="url(#skyGradient)"/>
<!-- Starry sky -->
<circle cx="30" cy="30" r="1.5" fill="white" filter="url(#glow)"/>
<circle cx="70" cy="50" r="1.2" fill="white" filter="url(#glow)"/>
<circle cx="150" cy="20" r="1.8" fill="white" filter="url(#glow)"/>
<circle cx="220" cy="40" r="1.5" fill="white" filter="url(#glow)"/>
<circle cx="270" cy="60" r="1.2" fill="white" filter="url(#glow)"/>
<circle cx="250" cy="90" r="1.7" fill="white" filter="url(#glow)"/>
<circle cx="200" cy="80" r="1.3" fill="white" filter="url(#glow)"/>
<circle cx="100" cy="80" r="1.6" fill="white" filter="url(#glow)"/>
<circle cx="60" cy="120" r="1.2" fill="white" filter="url(#glow)"/>
<circle cx="140" cy="10" r="1.4" fill="white" filter="url(#glow)"/>
<circle cx="180" cy="30" r="1.3" fill="white" filter="url(#glow)"/>
<circle cx="250" cy="20" r="1.2" fill="white" filter="url(#glow)"/>
<!-- Cat playing violin -->
<g id="catViolin" transform="translate(120, 160)">
<!-- Violin -->
<g id="violin" transform="translate(20,-10) rotate(-20)">
<path d="M10,10 C5,20 5,40 10,50 C15,60 25,60 30,50 C35,40 35,20 30,10 C25,0 15,0 10,10 Z" fill="url(#violinGradient)" stroke="#5a2f0c" stroke-width="1"/>
<path d="M18,20 C17,30 23,30 22,20" fill="none" stroke="black" stroke-width="0.5"/>
<path d="M18,30 C17,35 23,35 22,30" fill="none" stroke="black" stroke-width="0.5"/>
<path d="M32,12 Q50,20 32,28" fill="none" stroke="#deb887" stroke-width="2" stroke-linecap="round"/>
</g>
<!-- Cat -->
<g id="cat">
<!-- Body -->
<ellipse cx="0" cy="20" rx="8" ry="12" fill="#f4a460" stroke="black" stroke-width="0.5"/>
<!-- Head -->
<circle cx="0" cy="0" r="6" fill="#f4a460" stroke="black" stroke-width="0.5"/>
<!-- Ears -->
<polygon points="-4,-2 -2,-10 0,-2" fill="#f4a460" stroke="black" stroke-width="0.5"/>
<polygon points="0,-2 2,-10 4,-2" fill="#f4a460" stroke="black" stroke-width="0.5"/>
<!-- Eyes -->
<circle cx="-2" cy="-1" r="0.8" fill="black"/>
<circle cx="2" cy="-1" r="0.8" fill="black"/>
<!-- Nose -->
<polygon points="0,0 -1,1 1,1" fill="pink"/>
<!-- Whiskers -->
<line x1="-4" y1="0" x2="-8" y2="0" stroke="black" stroke-width="0.5"/>
<line x1="4" y1="0" x2="8" y2="0" stroke="black" stroke-width="0.5"/>
<line x1="-4" y1="1" x2="-8" y2="2" stroke="black" stroke-width="0.5"/>
<line x1="4" y1="1" x2="8" y2="2" stroke="black" stroke-width="0.5"/>
<!-- Front Paw reaching for violin -->
<path d="M4,15 Q8,13 10,16" fill="none" stroke="#f4a460" stroke-width="2" stroke-linecap="round"/>
<!-- Tail -->
<path d="M8,25 Q16,28 12,35" fill="none" stroke="#f4a460" stroke-width="2" stroke-linecap="round"/>
</g>
</g>
</svg>GPT-4o
Judge & Evaluator
The winner of this SVG challenge is
GPT-4.1 mini (2025-04-14)
Player 1
Judge's Analysis
Player 1's image adheres to the prompt more effectively by clearly depicting a cat playing a musical instrument under a starry sky.
The composition is detailed, showing a recognizable cat, violin-like instrument, and musical notes.
Player 2's submission, while minimalist, lacks clarity in representing the cat and violin, making it less successful in fulfilling the prompt.
These metrics analyze technical aspects of both SVG drawings. Look for differences that might explain the judge's decision. Use the "View Code" button above to see the SVG code for each drawing.
Shapes Metrics
Total Shapes
The total number of shape elements (rect, circle, ellipse, line, polygon, polyline, path) in the SVG.
Player 1
65
Player 2
30
Rectangles
The number of rectangle elements (rect) in the SVG.
Player 1
4
Player 2
1
Circles
The number of circle elements (circle) in the SVG.
Player 1
19
Player 2
15
Ellipses
The number of ellipse elements (ellipse) in the SVG.
Player 1
16
Player 2
1
Lines
The number of line elements (line) in the SVG.
Player 1
5
Player 2
4
Polygons
The number of polygon elements (polygon) in the SVG.
Player 1
2
Player 2
3
Paths
The number of path elements (path) in the SVG.
Player 1
19
Player 2
6
Groups
The number of group elements (g) in the SVG.
Player 1
10
Player 2
3
Visual Effects Metrics
Gradients
The number of gradient definitions (linearGradient, radialGradient) in the SVG.
Player 1
8
Player 2
2
Patterns
The number of pattern definitions (pattern) in the SVG.
Player 1
1
Player 2
—
Filters
The number of filter definitions (filter) in the SVG.
Player 1
—
Player 2
1
Masks
The number of mask definitions (mask) in the SVG.
Player 1
—
Player 2
—
Clip Paths
The number of clipping path definitions (clipPath) in the SVG.
Player 1
—
Player 2
—
Elements with Opacity
The number of elements with opacity attributes in the SVG.
Player 1
14
Player 2
—
Elements with Stroke
The number of elements with stroke attributes in the SVG.
Player 1
22
Player 2
14
Colors Metrics
Unique Colors
The number of unique colors used in the SVG.
Player 1
40
Player 2
10
Interactivity Metrics
Animations
The number of animation elements (animate, animateMotion, animateTransform, set) in the SVG.
Player 1
—
Player 2
—
Elements with Transform
The number of elements with transform attributes in the SVG.
Player 1
5
Player 2
2
Complexity Metrics
Path Commands
The total number of path commands in all path elements (M, L, C, Q, etc.) in the SVG.
Player 1
85
Player 2
16
Max Group Nesting
The maximum nesting level of group elements (g) in the SVG.
Player 1
1
Player 2
1
Defs Elements
The number of elements defined within the defs element in the SVG.
Player 1
9
Player 2
3
Use Elements
The number of use elements (use) in the SVG.
Player 1
—
Player 2
—
Text Metrics
Text Elements
The number of text elements (text) in the SVG.
Player 1
4
Player 2
—
AI Judging Process
Creativity
Originality, innovative use of shapes and unique approach to the prompt.
Prompt Adherence
How accurately the SVG captures the essence of the prompt.
Visual Appeal
Aesthetic quality including composition, color usage and overall visual impact.
How does judging work?
SVG drawings are converted to static PNG images for evaluation. The AI judge receives the original prompt and both images, then determines which drawing better fulfills the evaluation criteria without seeing animations, interactivity, or SVG code.