STEALTHMARK · HEAD TO HEAD

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DeepSeek V4 Pro 0813 vs DeepSeek V4.1 Flash

DeepSeek V4.1 Flash scores 2.1 points higher overall (51.7 vs 49.6). DeepSeek V4.1 Flash scores higher on Newton's Mirror, with its largest category advantage in reflections.

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All results ↗

Overall StealthMark

49.6/100
51.7/100

General Intelligence

35.3/100
38.4/100

Visual Intelligence

59.6/100
60.7/100

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.

DeepSeek V4.1 Flash36.4/100

DeepSeek V4.1 Flash: Newton's Mirror SVG benchmark
Researcher observations

The first wall and floor images provide limited reflection geometry, but the room's mirror recurrence is substantially incomplete, particularly the outer-edge chains and lateral sightlines. The main sphere and its large reflected images lack ordered, curved room and virtual-sphere imagery. Repeated emitter mapping is missing from both planar mirrors and spherical surfaces.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryDeepSeek V4 Pro 0813DeepSeek V4.1 Flash
State at 600 ms25.0/2525.0/25
Camera and placement15.0/1515.0/15
Reflections11.0/12016.0/120
Materials and scale8.0/109.5/10
Floor-damage reward0.0/100.0/10

Selfie

Same prompt

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.

DeepSeek V4.1 Flash76.8/100

DeepSeek V4.1 Flash: Selfie SVG benchmark
Researcher observations

The towering ears, glossy eyes, reaching pose and lavender moon create an appealing storybook composition. Limbs connect coherently, and the smaller rabbit adds character. Smooth gradient surfaces provide limited plush fur or padded fabric detail. Broad helmet highlights, weak contact shadows and crowded glowing outlines reduce depth and finish; the moon ring has conspicuously abrupt ends.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryDeepSeek V4 Pro 0813DeepSeek V4.1 Flash
Prompt & likeness8.0/108.0/10
Anatomy & construction7.0/108.0/10
Space & placement7.0/107.5/10
Light & reflections7.0/107.0/10
Purposeful detail6.5/107.5/10
Artistry & character7.5/108.0/10
Materials & effects6.5/107.0/10
Visual integrity6.0/107.5/10

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

DeepSeek V4.1 Flash68.3/100

DeepSeek V4.1 Flash: Beach SVG benchmark
Researcher observations

The glowing sunset, silhouetted palm and playful foreground create a coherent, appealing beach illustration. Birds, crab, boat and reflections fulfill the brief. The airborne animals have weakly defined anatomy and little convincing splash interaction. Broad, blurred reflections and largely flat surfaces limit depth and 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
CategoryDeepSeek V4 Pro 0813DeepSeek V4.1 Flash
Prompt & likeness7.5/108.0/10
Anatomy & construction5.5/106.0/10
Space & placement6.0/106.5/10
Light & reflections6.5/107.0/10
Purposeful detail5.5/106.5/10
Artistry & character6.0/107.0/10
Materials & effects5.5/106.0/10
Visual integrity7.0/107.5/10

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

DeepSeek V4.1 Flash43.8/100

DeepSeek V4.1 Flash: Mona Lisa SVG benchmark
Researcher observations

The centered portrait, dark hair, crossed hands and muted landscape make the reference recognizable. Replication is limited by the frontal pose, staring eyes and weakly defined smile. Hands are overlapping oval masses with almost no finger articulation, while wrists disappear into sleeves. Soft gradients suggest volume, but broad, indistinct surfaces and faint stray lines leave the drawing basic and uneven.

Exact prompt

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

Compare category scores
CategoryDeepSeek V4 Pro 0813DeepSeek V4.1 Flash
Prompt & likeness5.0/105.0/10
Anatomy & construction3.5/103.5/10
Space & placement4.0/105.0/10
Light & reflections4.5/105.0/10
Purposeful detail3.5/103.0/10
Artistry & character4.5/104.5/10
Materials & effects3.5/104.0/10
Visual integrity5.5/105.0/10

Raccoon

Different prompts

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

DeepSeek V4.1 Flash49.0/100

DeepSeek V4.1 Flash: Raccoon SVG benchmark
Researcher observations

The sunset palette and silhouetted grouping establish an appealing scene. A masked rider sits above a pointed-eared dog, but merged body shapes leave limbs and support unresolved. The boatlike craft lacks readable steering controls, so the requested action is unclear. Sparse facial marks and glowing spray dots offer limited detail.

Exact prompt

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 0813DeepSeek V4.1 Flash
Prompt & likeness7.5/105.5/10
Anatomy & construction5.5/103.5/10
Space & placement5.5/105.0/10
Light & reflections4.5/106.0/10
Purposeful detail6.0/103.5/10
Artistry & character6.0/105.5/10
Materials & effects5.0/104.0/10
Visual integrity6.0/106.5/10

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

DeepSeek V4.1 Flash76.0/100

DeepSeek V4.1 Flash: Pelican SVG benchmark
Researcher observations

A recognizable pelican rides a brightly colored bicycle against a striking sunset. The sweeping bill, trailing scarf and circular wheels create a controlled composition. Both legs connect, but pedal linkage, body support and the wing's handlebar grip remain loosely resolved. Clean vector shapes and feather details work well; simplified shading limits volume and integration with the sunset light.

Exact prompt

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

Compare category scores
CategoryDeepSeek V4 Pro 0813DeepSeek V4.1 Flash
Prompt & likeness8.5/108.5/10
Anatomy & construction6.0/107.0/10
Space & placement7.0/107.5/10
Light & reflections7.0/107.0/10
Purposeful detail7.5/107.5/10
Artistry & character8.0/108.0/10
Materials & effects7.0/107.0/10
Visual integrity7.5/108.0/10