STEALTHMARK · HEAD TO HEAD

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Qwen3.6 27b vs Union Alpha

Union Alpha scores 27.4 points higher overall (60.7 vs 33.3). Union Alpha scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.

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Model guide ↗

Overall StealthMark

33.3/100
60.7/100

General Intelligence

21.9/100
52.5/100

Visual Intelligence

46.8/100
70.5/100

Newton's Mirror

Same prompt

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

Qwen3.6 27b17.0/100

Qwen3.6 27b: Newton's Mirror SVG benchmark
Researcher observations

The artwork depicts a shaded sphere, distinct paint colors and a separate airborne black blob. Crimson's apex overlap does not establish its earlier interaction and transport, while cyan's recent contact remains unsupported. Horizontal centering supplies limited camera agreement, but the sphere, black blob and prominent panel have substantial placement or projection departures. A few planar echoes provide reflection evidence; isolated patches and gradients replace most of the required mirror structure.

Simplified prompt

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.

The exact prompt is held back to prevent benchmaxxing.

Union Alpha45.6/100

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.

Simplified prompt

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.

The exact prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryQwen3.6 27bUnion Alpha
State at 600 ms8.0/2525.0/25
Camera and placement5.0/1515.0/15
Reflections8.0/12019.0/120
Materials and scale4.0/1010.0/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

Qwen3.6 27b56.3/100

Qwen3.6 27b: Selfie SVG benchmark
Researcher observations

An appealing decorative illustration with coordinated ornament, flowing panels and three glowing orbital lights. The arm arrangement reverses the requested sides. Uncertain neck continuity, concealed leg articulation, simplified paws, crowded chest jewelry and shallow surface modeling limit pose clarity and finish.

Simplified prompt

Draw a friendly capybara floating in ornate green and white robes. A glowing halo and small floating orbs surround it, giving it the feel of a gentle fantasy guide.

The exact prompt is held back to prevent benchmaxxing.

Union Alpha76.5/100

Union Alpha: Selfie SVG benchmark
Researcher observations

A strong futuristic emblem with clear hierarchy, controlled negative space and distinctive typography. Silver and gunmetal layers give the sweeping ribbons convincing graphic depth, while red accents remain restrained. Ambiguous concealed connections and occasionally abrupt highlight bands limit the construction and material realism.

Simplified prompt

Draw an abstract alpha-like symbol made of interwoven metal ribbons. Use silver, dark metal and small glowing red accents on a nearly black background, with UNION ALPHA written beneath it.

The exact prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryQwen3.6 27bUnion Alpha
Prompt & likeness6.5/109.0/10
Anatomy & construction5.0/107.5/10
Space & placement6.5/108.5/10
Light & reflections5.5/107.5/10
Purposeful detail6.0/107.0/10
Artistry & character5.0/107.5/10
Materials & effects5.0/107.5/10
Visual integrity6.5/107.0/10

Mona Lisa

Different prompts

Qwen3.6 27b30.8/100

Qwen3.6 27b: Mona Lisa SVG benchmark
Researcher observations

The portrait loosely evokes Mona Lisa through its palette and silhouette. Readable pupils, brows and lips provide limited detail, and the torso remains continuous. The frontal elongated face, unresolved chest-level limb forms, shallow landscape and pervasive blur substantially weaken likeness, anatomy and finish.

Exact prompt

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

Union Alpha59.1/100

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
CategoryQwen3.6 27bUnion Alpha
Prompt & likeness2.5/106.5/10
Anatomy & construction3.0/105.0/10
Space & placement4.0/106.5/10
Light & reflections4.0/106.0/10
Purposeful detail2.5/105.5/10
Artistry & character2.5/106.5/10
Materials & effects3.0/105.0/10
Visual integrity4.0/107.0/10

Beach

Different prompts

Qwen3.6 27b56.7/100

Qwen3.6 27b: Beach SVG benchmark
Researcher observations

A recognizable sunset beach with balanced palms, clean shapes and effective warm–cool contrast. Small animals and play equipment address the brief, but rudimentary anatomy, uncertain water contacts, sparse reflections and flat materials keep the drawing basic or uneven.

Exact prompt

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

Union Alpha71.5/100

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
CategoryQwen3.6 27bUnion Alpha
Prompt & likeness7.5/109.0/10
Anatomy & construction5.0/107.0/10
Space & placement5.5/108.0/10
Light & reflections5.5/107.0/10
Purposeful detail4.5/107.0/10
Artistry & character5.5/106.0/10
Materials & effects5.5/106.5/10
Visual integrity7.0/107.0/10

Ground Truth

Same prompt

Qwen3.6 27b23.7/100

Qwen3.6 27b: Ground Truth SVG benchmark
Simplified prompt

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.

The exact prompt is held back to prevent benchmaxxing.

Union Alpha63.3/100

Union Alpha: Ground Truth SVG benchmark
Simplified prompt

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.

The exact prompt is held back to prevent benchmaxxing.

Raccoon

Different prompts

Qwen3.6 27b57.7/100

Qwen3.6 27b: Raccoon SVG benchmark
Researcher observations

A readable cartoon with balanced colors, clean shapes and a clearly supported raccoon. Continuous body construction and modest shading deserve credit. Rudimentary limbs, unresolved steering connections, stiff gestures and schematic water effects limit physical credibility and finish.

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 Alpha70.2/100

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
CategoryQwen3.6 27bUnion Alpha
Prompt & likeness6.5/108.0/10
Anatomy & construction5.0/106.5/10
Space & placement6.0/107.5/10
Light & reflections5.5/105.5/10
Purposeful detail5.5/107.5/10
Artistry & character6.0/107.5/10
Materials & effects5.5/107.5/10
Visual integrity7.0/107.0/10

Pelican

Benchmax control

Outside General and Visual Intelligence. Excluded from the overall score for Qwen3.6 27b and Union Alpha.

Qwen3.6 27b58.5/100

Qwen3.6 27b: Pelican SVG benchmark
Researcher observations

A lively, coherent illustration with recognizable pelican features, purposeful accessories and useful surface variation. Ambiguous neck layering, uncertain pedal engagement and an unresolved drivetrain limit construction. Aligned wheels and layered scenery establish placement, while inconsistent shadow direction and crowded overlaps constrain finish.

Exact prompt

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

Union Alpha71.0/100

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
CategoryQwen3.6 27bUnion Alpha
Prompt & likeness7.5/108.5/10
Anatomy & construction4.0/106.5/10
Space & placement6.5/107.5/10
Light & reflections5.0/106.0/10
Purposeful detail6.5/106.5/10
Artistry & character5.5/106.5/10
Materials & effects6.5/106.5/10
Visual integrity6.5/108.5/10