STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Qwen3.8 27B vs Qwen 3.8 Flash

Qwen3.8 27B scores 5.0 points higher overall (55.1 vs 50.1). Qwen3.8 27B scores higher on Newton's Mirror, with its largest category advantage in camera and placement.

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All results ↗
All results ↗

Overall StealthMark

55.1/100
50.1/100

General Intelligence

38.3/100
30.3/100

Visual Intelligence

67.8/100
64.7/100

Newton's Mirror

Same prompt

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

Qwen3.8 27B33.3/100

Qwen3.8 27B: Newton's Mirror SVG benchmark
Researcher observations

The room fills the complete 16:9 frame without visible borders or labels. Central placement fits the wider frame, and the paint colors follow the expected vertical order. Bilateral side images, diminishing echoes and an overlapping floor image provide limited mirror depth. Broad sphere surfaces lack ordered nested room imagery, while planar panel sequences and outer chains remain missing or unresolved. Soft highlights do not establish emitter mapping, while paint attachment and transport history are only partly supported.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Qwen 3.8 Flash22.5/100

Qwen 3.8 Flash: Newton's Mirror SVG benchmark
Researcher observations

The full-frame illustration supports a central steel sphere, an airborne black blob and the relative ordering of cyan and crimson. Its faint floor return and symmetric repetitions provide sparse mirror structure; outer chains, large reflected images, nested imagery and emitter mapping remain deficient. Vertical framing is substantially displaced, and paint contact histories remain unresolved.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryQwen3.8 27BQwen 3.8 Flash
State at 600 ms17.5/2513.5/25
Camera and placement13.0/153.5/15
Reflections22.5/12019.0/120
Materials and scale7.0/104.5/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

Qwen3.8 27B78.8/100

Qwen3.8 27B: Selfie SVG benchmark
Researcher observations

A cohesive emerald-and-gold illustration with a gentle expression, flowing robes, luminous halo and three clearly ringed orbs. Limbs remain connected, and the asymmetric legs communicate floating. The rounded face reads somewhat bear-like; the raised palm faces outward rather than upward, and chest-hand fingers are crowded. Clean ornamentation exceeds the comparatively simple anatomical modeling and shading.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Qwen 3.8 Flash72.8/100

Qwen 3.8 Flash: Selfie SVG benchmark
Researcher observations

The towering ears, expressive eyes, astronaut suit and diagonal moon ring create an appealing storybook scene. The reaching arm connects coherently to the carrot interaction. Smooth surfaces provide little plush fur, crater depth is simplified, and bright granular fringes roughen the rings and floating rocks. One small rabbit paw appears detached beneath its body.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryQwen3.8 27BQwen 3.8 Flash
Prompt & likeness8.0/108.5/10
Anatomy & construction7.5/107.0/10
Space & placement8.0/107.5/10
Light & reflections7.5/107.0/10
Purposeful detail8.0/107.0/10
Artistry & character8.0/107.5/10
Materials & effects7.5/107.0/10
Visual integrity8.5/106.0/10

Beach

Same prompt

Qwen3.8 27B78.3/100

Qwen3.8 27B: Beach SVG benchmark
Researcher observations

The sweeping palm, glowing sunset and layered shoreline create an appealing composition with abundant beach activity. Birds, animals and sun reflections satisfy the brief. Animal anatomy remains schematic, wave spacing is repetitive, and shadows and reflective surfaces offer limited physical depth. Clean silhouettes and small beach details support a strong stylized illustration.

Exact prompt

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

Qwen 3.8 Flash73.8/100

Qwen 3.8 Flash: Beach SVG benchmark
Researcher observations

The sunset gradient, sweeping palms and aligned sun reflection create an appealing beach composition. Birds, animals, boating and beach activities satisfy the brief. Small figures and animal anatomy remain rudimentary, water movement is schematic, and contact shadows are weak. Crowded foreground details and a clipped orange disk at the top limit the finish.

Exact prompt

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

Compare category scores
CategoryQwen3.8 27BQwen 3.8 Flash
Prompt & likeness9.0/108.5/10
Anatomy & construction7.5/107.0/10
Space & placement7.5/107.0/10
Light & reflections7.5/107.5/10
Purposeful detail7.5/107.0/10
Artistry & character8.0/107.5/10
Materials & effects7.0/106.5/10
Visual integrity8.0/107.5/10

Mona Lisa

Same prompt

Qwen3.8 27B42.5/100

Qwen3.8 27B: Mona Lisa SVG benchmark
Researcher observations

The centered portrait, dark clothing and overlapping hands evoke the Mona Lisa, but replication is weak. The face is excessively elongated, the eyes stare broadly, and the hands reduce to rounded masses with shallow finger marks. Soft shading creates some volume, while the landscape remains indistinct. The precise gold frame is more resolved than the portrait.

Exact prompt

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

Qwen 3.8 Flash54.0/100

Qwen 3.8 Flash: Mona Lisa SVG benchmark
Researcher observations

The dark dress, crossed hands and hazy landscape evoke the Mona Lisa, but replication is limited by a generic frontal face, coarse smile and poorly articulated fingers. The gold frame has clearer definition than the portrait. Heavy mottling obscures features, while soft shading provides some volume without convincing anatomical detail.

Exact prompt

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

Compare category scores
CategoryQwen3.8 27BQwen 3.8 Flash
Prompt & likeness4.5/105.5/10
Anatomy & construction4.0/105.0/10
Space & placement4.0/106.0/10
Light & reflections5.0/106.0/10
Purposeful detail3.5/104.5/10
Artistry & character4.0/105.5/10
Materials & effects4.5/105.0/10
Visual integrity5.0/105.5/10

Raccoon

Same prompt

Qwen3.8 27B70.5/100

Qwen3.8 27B: Raccoon SVG benchmark
Researcher observations

The raccoon clearly rides on the dog's back, and the dog reaches the jet ski's steering grip. Cheerful expressions, a bright palette and sweeping wake make the action readable. Anatomy and machinery remain simplified, with overlapping paws and limited seat definition. Flat lighting, sparse surface detail and broad white splash shapes limit depth and finish. A clipped gray fragment interrupts the upper-left corner.

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

Qwen 3.8 Flash62.0/100

Qwen 3.8 Flash: Raccoon SVG benchmark
Researcher observations

The raccoon clearly rides the dog's back, with expressive features and appealing blue-orange color contrast. The dog's paws do not clearly operate connected controls, and the shallow vehicle lacks convincing jet ski construction. Clean outlines support the cartoon style, but generic shading and blurred water streaks limit depth and motion.

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

Compare category scores
CategoryQwen3.8 27BQwen 3.8 Flash
Prompt & likeness8.5/107.0/10
Anatomy & construction7.0/105.5/10
Space & placement7.0/106.0/10
Light & reflections5.5/105.5/10
Purposeful detail6.5/106.5/10
Artistry & character7.0/106.5/10
Materials & effects6.5/105.5/10
Visual integrity7.5/107.0/10

Pelican

Benchmax control

Outside General and Visual Intelligence.

Qwen3.8 27B71.3/100

Qwen3.8 27B: Pelican SVG benchmark
Researcher observations

The pelican’s oversized bill, straw hat and flowing scarf create a distinctive focal character against a well-composed coastal sunset. Wheels and frame are readable, but the wings do not reach the steering, overlapping legs obscure separate pedal contacts, and the crank linkage is unclear. Clean vector shapes and restrained shading support an appealing illustration with limited physical depth.

Exact prompt

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

Qwen 3.8 Flash73.5/100

Qwen 3.8 Flash: Pelican SVG benchmark
Researcher observations

The pelican's expressive face, oversized bill and flowing scarf create an appealing focal point. The bicycle has recognizable frame, chain and wheel construction, but the far foot lacks a clear pedal connection and the wing's steering contact is ambiguous. Clean contours and gentle gradients support the illustration; simplified volume and weak directional shadows limit depth.

Exact prompt

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

Compare category scores
CategoryQwen3.8 27BQwen 3.8 Flash
Prompt & likeness8.0/108.5/10
Anatomy & construction5.5/106.0/10
Space & placement7.0/107.5/10
Light & reflections7.0/106.5/10
Purposeful detail7.5/107.5/10
Artistry & character8.0/108.0/10
Materials & effects6.5/107.0/10
Visual integrity8.0/108.0/10