STEALTHMARK · HEAD TO HEAD

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DeepSeek V4 Pro 0813 vs Qwen3.8 27B

Qwen3.8 27B scores 5.5 points higher overall (55.1 vs 49.6). Qwen3.8 27B scores higher on Beach, with its largest category advantage in anatomy & construction.

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Overall StealthMark

49.6/100
55.1/100

General Intelligence

35.3/100
38.3/100

Visual Intelligence

59.6/100
67.8/100

Newton's Mirror

Same prompt

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

DeepSeek V4 Pro 081332.8/100

DeepSeek V4 Pro 0813: Newton's Mirror SVG benchmark
Researcher observations

The central sphere and gross paint state are coherent. Reduced circular side images and paired overhead quadrilaterals offer limited, spatially organized reflection cues, but the floor-sphere image, receding mirror-room structure, outer chains, nested imagery and curved emitter mappings are largely missing or invalid.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

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.

Compare category scores
CategoryDeepSeek V4 Pro 0813Qwen3.8 27B
State at 600 ms25.0/2517.5/25
Camera and placement15.0/1513.0/15
Reflections11.0/12022.5/120
Materials and scale8.0/107.0/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

DeepSeek V4 Pro 081370.5/100

DeepSeek V4 Pro 0813: Selfie SVG benchmark
Researcher observations

The reaching pose, glossy eyes and lavender moon create an appealing storybook scene. Both rabbits read clearly, and the main limbs connect coherently. However, the towering ears pass through the helmet boundary, plush fur is largely absent, and broad gradients simplify the suit and terrain. Rectangular clipping around several blurred rock halos weakens the finish.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

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.

Compare category scores
CategoryDeepSeek V4 Pro 0813Qwen3.8 27B
Prompt & likeness8.0/108.0/10
Anatomy & construction7.0/107.5/10
Space & placement7.0/108.0/10
Light & reflections7.0/107.5/10
Purposeful detail6.5/108.0/10
Artistry & character7.5/108.0/10
Materials & effects6.5/107.5/10
Visual integrity6.0/108.5/10

Beach

Same prompt

DeepSeek V4 Pro 081362.0/100

DeepSeek V4 Pro 0813: Beach SVG benchmark
Researcher observations

The glowing sunset, framing palms and layered shoreline create a coherent beach scene with animals, birds and playful accessories. The airborne blue animal has unclear anatomy, while flat foliage, weak ground contact and broad oval reflections limit depth and finish. The image is appealing but visibly simplified.

Exact prompt

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

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

Compare category scores
CategoryDeepSeek V4 Pro 0813Qwen3.8 27B
Prompt & likeness7.5/109.0/10
Anatomy & construction5.5/107.5/10
Space & placement6.0/107.5/10
Light & reflections6.5/107.5/10
Purposeful detail5.5/107.5/10
Artistry & character6.0/108.0/10
Materials & effects5.5/107.0/10
Visual integrity7.0/108.0/10

Mona Lisa

Same prompt

DeepSeek V4 Pro 081342.5/100

DeepSeek V4 Pro 0813: Mona Lisa SVG benchmark
Researcher observations

The centered portrait, dark clothing and hazy landscape evoke the Mona Lisa, but replication is limited by an elongated frontal face, oversized looping sleeves and unresolved crossed hands. The background-colored opening through the lower body weakens construction. Soft facial shading adds some volume, while sparse finger marks and broad flat shapes leave the drawing basic and uneven.

Exact prompt

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

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

Compare category scores
CategoryDeepSeek V4 Pro 0813Qwen3.8 27B
Prompt & likeness5.0/104.5/10
Anatomy & construction3.5/104.0/10
Space & placement4.0/104.0/10
Light & reflections4.5/105.0/10
Purposeful detail3.5/103.5/10
Artistry & character4.5/104.0/10
Materials & effects3.5/104.5/10
Visual integrity5.5/105.0/10

Raccoon

Same prompt

DeepSeek V4 Pro 081358.5/100

DeepSeek V4 Pro 0813: Raccoon SVG benchmark
Researcher observations

The masked raccoon riding the steering dog is readily recognizable, with expressive faces and energetic diagonal movement. The oversized tail dominates the composition, limb connections are difficult to trace, and the jet ski has little structural depth. Blurred spray and a heavy oval shadow weaken water contact, while the glowing sun produces little corresponding illumination.

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

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

Compare category scores
CategoryDeepSeek V4 Pro 0813Qwen3.8 27B
Prompt & likeness7.5/108.5/10
Anatomy & construction5.5/107.0/10
Space & placement5.5/107.0/10
Light & reflections4.5/105.5/10
Purposeful detail6.0/106.5/10
Artistry & character6.0/107.0/10
Materials & effects5.0/106.5/10
Visual integrity6.0/107.5/10

Pelican

Benchmax control

Outside General and Visual Intelligence.

DeepSeek V4 Pro 081372.8/100

DeepSeek V4 Pro 0813: Pelican SVG benchmark
Researcher observations

A clearly recognizable pelican cycles through a balanced, expressive illustration. The sweeping bill, shaded plumage and carefully drawn wheels give it character. Mechanical construction is weaker: the chain loop sits below the crank, and foot-to-pedal and wing-to-handlebar contact are ambiguous. Smooth gradients provide volume, but the scene remains visibly stylized.

Exact prompt

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

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

Compare category scores
CategoryDeepSeek V4 Pro 0813Qwen3.8 27B
Prompt & likeness8.5/108.0/10
Anatomy & construction6.0/105.5/10
Space & placement7.0/107.0/10
Light & reflections7.0/107.0/10
Purposeful detail7.5/107.5/10
Artistry & character8.0/108.0/10
Materials & effects7.0/106.5/10
Visual integrity7.5/108.0/10