STEALTHMARK · HEAD TO HEAD

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Grok 4.7 vs Union Alpha

Union Alpha scores 9.5 points higher overall (60.0 vs 50.5). Union Alpha scores higher on Newton's Mirror, with its largest category advantage in reflections. Union Alpha’s overall score includes one estimated scene.

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Overall StealthMark

50.5/100
60.0/100Estimated · 1 missing scene

General Intelligence

34.9/100
40.9/100Partial coverage

Visual Intelligence

62.5/100
73.2/100Partial coverage

Newton's Mirror

Same prompt

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

Grok 4.732.8/100

Grok 4.7: Newton's Mirror SVG benchmark
Researcher observations

Some sphere reflections are correctly placed, with useful size progression and a floor image. Their overlapping side continuations and inverted floor paint order provide additional local optical cues. The gross paint sequence is recognizable, although crimson is a little too low. Incorrect lamp projections and absent nested and receding imagery still leave the mirror system largely incomplete.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Union Alpha38.3/100

Union Alpha: Newton's Mirror SVG benchmark
Researcher observations

Recognizable near-field sphere placement and bilateral convergence provide limited optical structure. Broad gray regions interrupt lateral sightlines and truncate side-floor images. Missing outer chains, absent nested sphere imagery and incomplete planar and curved emitter mappings dominate the reflection system.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryGrok 4.7Union Alpha
State at 600 ms23.0/2525.0/25
Camera and placement14.5/1515.0/15
Reflections12.0/12019.0/120
Materials and scale9.5/1010.0/10
Floor-damage reward0.0/100.0/10

Selfie

Grok 4.768.8/100

Grok 4.7: Selfie SVG benchmark
Researcher observations

The bold spiral dominates an appealing, restrained silhouette, with crisp angular turns and subtle charcoal highlights. However, a visible background gap separates the shell from the body, making the shell appear suspended. The connected head and delicate eye stalks read clearly, while shading and small features remain simple.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryGrok 4.7Union Alpha
Prompt & likeness8.0/10—
Anatomy & construction5.5/10—
Space & placement6.0/10—
Light & reflections7.0/10—
Purposeful detail7.0/10—
Artistry & character7.5/10—
Materials & effects7.0/10—
Visual integrity8.0/10—

Beach

Different prompts

Grok 4.762.3/100

Grok 4.7: Beach SVG benchmark
Researcher observations

The warm sunset, blue water and scattered beach activities create a cheerful, readable composition. Animals and equipment use basic silhouettes, with limited anatomical detail and grounding. The sun reflection forms a rigid tapered strip, and foreground objects lack cast shadows. Clean shapes support the illustration, but depth, materials and drawing complexity remain modest.

Exact prompt

Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections Make it a masterpiece, no tools allowed

Union Alpha80.0/100

A beach at sunset with a palm tree, turtle, crab, birds, and a leaping dolphin.
Researcher observations

A cohesive sunset palette, sweeping shoreline and playful animals make an appealing beach illustration. The sun’s reflection establishes a clear focal axis, balanced by the palm and umbrella. Clean silhouettes and small decorative features reward inspection, though simplified anatomy, repetitive reflection bars and generic oval shadows limit volume and naturalism.

Exact prompt

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

Compare category scores
CategoryGrok 4.7Union Alpha
Prompt & likeness7.5/109.0/10
Anatomy & construction6.0/107.5/10
Space & placement5.5/108.0/10
Light & reflections6.0/107.5/10
Purposeful detail5.5/108.0/10
Artistry & character6.5/108.0/10
Materials & effects5.0/107.0/10
Visual integrity7.0/108.5/10

Mona Lisa

Different prompts

Grok 4.749.5/100

Grok 4.7: Mona Lisa SVG benchmark
Researcher observations

The dark clothing, crossed hands, restrained smile and muted landscape make the reference recognizable. Replication is limited by the oversized, simplified face, elongated neck and rounded hands with poorly resolved fingers. Gentle facial shading adds volume, but the clothing and landscape remain flat. Angular veil overlaps and a hard horizontal background boundary weaken the finish.

Exact prompt

Replicate mona-lisa as SVG Make it a masterpiece, no tools allowed

Union Alpha64.0/100

An SVG interpretation of the Mona Lisa, with folded hands and a landscape background.
Researcher observations

The centered portrait, folded hands, dark clothing and hazy landscape clearly evoke the Mona Lisa. Muted colors and soft facial shading create a coherent illustration, but replication remains schematic: the face is broad, eyes outlined, smile simplified and overlapping fingers poorly resolved. Angular landscape shapes and flat fabric limit depth and painterly richness.

Exact prompt

Replicate mona-lisa as SVG

Compare category scores
CategoryGrok 4.7Union Alpha
Prompt & likeness5.5/107.0/10
Anatomy & construction4.5/106.0/10
Space & placement5.0/106.5/10
Light & reflections4.5/106.5/10
Purposeful detail4.0/105.5/10
Artistry & character5.5/106.5/10
Materials & effects4.0/105.0/10
Visual integrity6.0/107.5/10

Raccoon

Different prompts

Grok 4.762.0/100

Grok 4.7: Raccoon SVG benchmark
Researcher observations

The raccoon rides clearly on the dog's back, and expressive faces, bright colors and a readable orange hull create a playful composition. Steering is unresolved: the dog's visible paws rest on the deck rather than grasping the controls. Simple body shapes and ribbonlike wake limit construction and movement. The glowing sun produces little corresponding illumination or reflection.

Exact prompt

Generate an SVG: A raccoon sits on a dog's back while the dog steers a jet ski Make it a masterpiece, no tools allowed

Union Alpha72.0/100

A raccoon rides on a dog as the dog steers a red jet ski.
Researcher observations

Expressive animals, a readable riding arrangement and sweeping spray create an appealing cartoon. The raccoon sits convincingly on the dog's back, but the dog's paw does not clearly grip the handlebar, whose connection to the hull is unresolved. Flat lighting provides little volume or reflection. A dark rectangular strip interrupts the upper-right background.

Exact prompt

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

Compare category scores
CategoryGrok 4.7Union Alpha
Prompt & likeness7.0/108.0/10
Anatomy & construction5.5/106.5/10
Space & placement6.5/107.5/10
Light & reflections4.5/105.5/10
Purposeful detail6.0/107.5/10
Artistry & character7.0/108.0/10
Materials & effects5.5/107.5/10
Visual integrity7.0/107.0/10

Pelican

Benchmax control

Outside General and Visual Intelligence.

Grok 4.763.3/100

Grok 4.7: Pelican SVG benchmark
Researcher observations

The pelican reads clearly through its long bill, throat pouch and curved neck. Clean pastel shapes and balanced scenery make an appealing illustration. The riding mechanism is less convincing: feet lack clear pedal contact, steering is unresolved, and the frame lacks a coherent drivetrain. Simple shading and sparse feather detail limit depth and finish.

Exact prompt

Generate an SVG of a pelican riding a bicycle Make it a masterpiece, no tools allowed

Union Alpha73.8/100

A pelican riding a teal bicycle beneath a sunny blue sky.
Researcher observations

The pelican is immediately recognizable, with an expressive face, convincing bill silhouette and appealing pastel composition. Both legs connect to feet, and the wing reaches the handlebar. Bicycle construction is less resolved: the far pedal lacks a clear crank connection and no chain is visible. Clean contours and orderly spokes support the illustration, while flat lighting and simplified surfaces limit depth.

Exact prompt

Generate an SVG of a pelican riding a bicycle

Compare category scores
CategoryGrok 4.7Union Alpha
Prompt & likeness7.5/108.5/10
Anatomy & construction4.5/106.5/10
Space & placement6.5/107.5/10
Light & reflections6.0/106.0/10
Purposeful detail6.0/107.0/10
Artistry & character7.0/108.0/10
Materials & effects5.5/106.5/10
Visual integrity8.0/108.5/10