STEALTHMARK · HEAD TO HEAD

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Gemma 4 31B vs Pixel Canary

Pixel Canary scores 25.1 points higher overall (51.0 vs 25.9). Pixel Canary scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.

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Overall StealthMark

25.9/100
51.0/100

General Intelligence

13.9/100
36.0/100

Visual Intelligence

40.1/100
62.9/100

Newton's Mirror

Same prompt

Physics, perspective and recursive reflections, tested together. Explore the test ↗

Gemma 4 31B15.4/100

Gemma 4 31B: Newton's Mirror SVG benchmark
Researcher observations

The sphere's volume, separate airborne black blob and vertical color ordering are readable. The large, low sphere, plain surrounding planes and absent nested optical imagery leave the central geometric and reflection requirements unsupported. Paint contact and transport remain unresolved. Material credit recognizes the visible convex shading, highlights and distinct surface colors while retaining deductions for the schematic finish and oversized blobs.

Benchmark task

A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.

Pixel Canary31.3/100

Pixel Canary: Newton's Mirror SVG benchmark
Researcher observations

The principal sphere placement and paint contact sequence are supported. Isolated sphere and panel images provide limited optical structure, but missing lateral chains and side-floor continuations prevent a coherent repeating mirror room. The main and reflected spheres lack ordered curved nested imagery, while sparse planar emitter images and incomplete spherical emitter mapping leave most of the reflection system unsupported.

Benchmark task

A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.

Compare category scores
CategoryGemma 4 31BPixel Canary
State at 600 ms8.0/2519.0/25
Camera and placement3.0/1513.0/15
Reflections0.0/1208.0/120
Materials and scale6.0/107.0/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

Gemma 4 31B60.9/100

Gemma 4 31B: Selfie SVG benchmark
Researcher observations

A clean, appealing luminous mascot with coherent body continuity and a readable jar-hugging pose. Rounded highlights, smooth gradients and balanced framing work well. The teardrop silhouette, modest eyes and nearly even grin only partly satisfy the character brief; sparse jar construction and simple geometry limit sophistication.

Prompt withheld

Prompt withheld.

Pixel Canary74.1/100

Pixel Canary’s SVG self-portrait: a round golden voxel canary placing a cyan block into a miniature control panel.
Researcher observations

The cheerful yellow bird, cream eyes, orange features and miniature teal console closely match the brief. Clean block edges, restrained colors and soft shadows create an appealing composition. The body reads more like a gridded disc than a fully cubic sphere, and the outlined left wing has limited volume. The right wing reaches the cyan block, though its grip is ambiguous.

Benchmark task

Draw a huge round yellow canary made of little cubes. It holds a blue block above a tiny control panel, looking curious about the machine. Give the scene a soft, playful 3D look.

Compare category scores
CategoryGemma 4 31BPixel Canary
Prompt & likeness6.0/108.5/10
Anatomy & construction6.0/107.0/10
Space & placement7.5/107.5/10
Light & reflections6.5/107.5/10
Purposeful detail5.5/107.5/10
Artistry & character5.0/107.0/10
Materials & effects6.5/107.0/10
Visual integrity7.5/107.5/10

Mona Lisa

Different prompts

Gemma 4 31B35.1/100

Gemma 4 31B: Mona Lisa SVG benchmark
Researcher observations

The portrait is recognizable through its silhouette, palette and smile, with clean execution of simple shapes. Replication remains weak: the face and pose differ markedly, hands become fingerless ovals, clothing lacks construction, and the landscape loses its atmospheric detail. Basic gradients provide limited volume.

Benchmark task

Replicate mona-lisa as SVG

Pixel Canary45.9/100

Pixel Canary’s SVG interpretation of the Mona Lisa, with soft painted shading and the complete ornate gold frame.
Researcher observations

The framed portrait recalls Mona Lisa through dark hair, folded arms and a hazy landscape. Replication is limited by wide, staring eyes, an elongated neck and a downturned mouth. The overlapping hands lack convincing finger and wrist construction. Soft tonal shading suggests volume, but pervasive blur obscures clothing, landscape and anatomical detail.

Benchmark task

Generate an SVG of mona-lisa

Compare category scores
CategoryGemma 4 31BPixel Canary
Prompt & likeness3.0/103.5/10
Anatomy & construction4.0/104.0/10
Space & placement4.0/104.5/10
Light & reflections3.5/106.0/10
Purposeful detail2.0/104.5/10
Artistry & character3.5/104.5/10
Materials & effects2.5/105.5/10
Visual integrity5.5/105.5/10

Beach

Different prompts

Gemma 4 31B29.2/100

Gemma 4 31B: Beach SVG benchmark
Researcher observations

A coherent beach illustration with clean silhouettes, a sweeping shoreline and an effective sunset palette. Requested subjects are recognizable, but primitive animal construction, sparse detail, unsupported palm placement and schematic reflections limit drawing sophistication and physical credibility.

Benchmark task

Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections

Pixel Canary61.4/100

Pixel Canary’s SVG beach sunset with dolphins, birds, a kite, beachgoers, a crab, a turtle, a sandcastle and reflections in the water.
Researcher observations

A cohesive sunset beach illustration with lively wildlife, playful accents, and an appealing warm-to-purple palette. Palm framing and the aligned sun reflection organize the scene, while connected silhouettes keep the activities readable. Schematic joints, ambiguous dolphin junctions, loosely matched reflections, and repetitive surface marks limit construction, lighting coherence, and material depth.

Benchmark task

Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections

Compare category scores
CategoryGemma 4 31BPixel Canary
Prompt & likeness5.0/108.5/10
Anatomy & construction2.0/104.5/10
Space & placement5.0/107.5/10
Light & reflections2.5/105.5/10
Purposeful detail2.0/107.5/10
Artistry & character2.0/106.5/10
Materials & effects2.0/107.0/10
Visual integrity5.0/104.0/10

Ground Truth

Gemma 4 31B12.0/100

Gemma 4 31B: Ground Truth SVG benchmark
Benchmark task

A dark steel room has four pillars and two warm ceiling lights. A wooden plank is placed over a computer mouse, with a blueberry on the plank above it. Draw the scene a few seconds later, showing how the objects settle and how the light, shadows and surfaces look.

Raccoon

Different prompts

Gemma 4 31B38.2/100

Gemma 4 31B: Raccoon SVG benchmark
Researcher observations

Clean, simple silhouettes communicate a raccoon riding on a dog. Limited animal specificity, absent steering controls and a flat platform weaken the requested scene. Small facial marks provide purposeful detail, while unresolved support, flat lighting and schematic water restrict physical coherence. Primitive but coherent construction supports basic drawing quality.

Benchmark task

Generate an SVG: A raccoon sits on a dog's back while the dog steers a jet ski

Pixel Canary77.6/100

Pixel Canary’s SVG of a raccoon holding a drink on a goggle-wearing dog’s back as the dog steers a jet ski across the sea.
Researcher observations

The raccoon clearly rides the dog's back, and the dog's paws reach the jet ski controls. Expressive faces, a sweeping tail and a strong sunset composition give the illustration character. Limbs remain connected, but the dog's foreleg joints and vehicle seating are loosely constructed. Angular splashes convey speed more successfully than convincing water displacement; lighting and reflections remain decorative.

Benchmark task

SVG of a raccoon that sits on a dog's back while the dog steers a jet ski A raccoon sits on a dog's back while the dog steers a jet ski

Compare category scores
CategoryGemma 4 31BPixel Canary
Prompt & likeness4.5/109.0/10
Anatomy & construction4.0/107.0/10
Space & placement4.0/107.5/10
Light & reflections1.0/107.0/10
Purposeful detail3.0/108.5/10
Artistry & character4.0/108.0/10
Materials & effects2.0/107.0/10
Visual integrity8.0/108.0/10

Pelican

Different prompts

Gemma 4 31B50.5/100

Gemma 4 31B: Pelican SVG benchmark
Researcher observations

A clean, readable illustration with balanced placement and coherent basic geometry. The sky gradient and ground shadow establish diffuse illumination. Primitive shapes and sparse detail limit artistry, while unclear leg attachment, missing pedal contact and unresolved steering weaken the riding action.

Benchmark task

Generate an SVG of a pelican riding a bicycle

Pixel Canary76.3/100

Pixel Canary: Pelican SVG benchmark
Researcher observations

An appealing cartoon with a distinctive pelican, expressive eye, warm bill and carefully drawn bicycle wheels. The wing reaches the handlebar, but the feet do not clearly engage the pedals, weakening the riding mechanics. Layered hills create depth; limited ground shadows weaken contact. Clean curves and purposeful feather details give the illustration polish.

Benchmark task

Generate an SVG of a pelican riding a bicycle

Compare category scores
CategoryGemma 4 31BPixel Canary
Prompt & likeness6.0/108.5/10
Anatomy & construction4.0/106.5/10
Space & placement6.0/107.5/10
Light & reflections5.0/107.5/10
Purposeful detail3.5/108.0/10
Artistry & character4.0/108.0/10
Materials & effects4.0/107.5/10
Visual integrity8.0/108.0/10