STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek V4.1 Flash vs MISSINGNO.

DeepSeek V4.1 Flash scores 6.8 points higher overall (44.8 vs 38.0). DeepSeek V4.1 Flash scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.

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Model guide ↗

Overall StealthMark

44.8/100
38.0/100

General Intelligence

37.1/100
33.6/100

Visual Intelligence

54.0/100
43.3/100

Newton's Mirror

Same task instructions

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

DeepSeek V4.1 Flash43.3/100

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.

Benchmark task

A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.

MISSINGNO.24.1/100

MISSINGNO.: Newton's Mirror SVG benchmark
Researcher observations

The centered sphere, separate airborne black blob and cyan-above-crimson ordering provide limited valid structure. The colored beads do not establish the required impact and transport histories. One dim floor image supports a small part of the optical system, while the defining wall repetitions, nested sphere imagery and emitter mappings are missing. Rounded volume and some gloss earn material credit, tempered by soft surface appearance and excessive paint-bead scale.

Benchmark task

A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.

Compare category scores
CategoryDeepSeek V4.1 FlashMISSINGNO.
State at 600 ms25.0/2511.5/25
Camera and placement15.0/157.0/15
Reflections16.0/12012.0/120
Materials and scale9.5/105.5/10
Floor-damage reward0.0/100.0/10

Selfie

Different task instructions

DeepSeek V4.1 Flash67.9/100

DeepSeek V4.1 Flash: Selfie SVG benchmark
Researcher observations

Expressive faces, cobalt coloring and a flowing diagonal composition make the mutual inspection charming. Execution is uneven: the long pointed flipper lacks a convincing grip, the enlarged shrimp face appears detached from its body, and the large lens is oval. Flat anatomical shading and an unexplained purple ringed patch beneath the whale weaken the requested polished depth.

Benchmark task

A whale and a tiny shrimp examine one another through bubble lenses, with an octopus nearby. The scene tests interacting characters, differences in scale and transparent materials.

MISSINGNO.49.7/100

MISSINGNO.: Selfie SVG benchmark
Researcher observations

An appealing purple character with a readable pleased expression and raised-moustache joke. Smooth shading and clean contours support the simple design, but indistinct mitten grips, minimally textured curls and an uncompressed strap weaken the requested physical interaction. The jelly suggests gloss more convincingly than translucency.

Benchmark task

A glossy purple jelly struggles with an oversized fake moustache at a playful checkpoint. The scene tests comic expression, physical contact and the appearance of a soft translucent body.

Compare category scores
CategoryDeepSeek V4.1 FlashMISSINGNO.
Task & likeness7.0/105.5/10
Anatomy & construction6.5/104.5/10
Space & placement6.5/106.0/10
Light & reflections6.0/105.5/10
Purposeful detail7.0/104.5/10
Artistry & character7.5/104.5/10
Materials & effects7.0/104.0/10
Visual integrity7.0/106.0/10

Mona Lisa

Different task instructions

DeepSeek V4.1 Flash37.5/100

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.

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

MISSINGNO.28.1/100

MISSINGNO.: Mona Lisa SVG benchmark
Researcher observations

Clean contours, connected body forms and gentle gradients support a basic, coherent portrait. Likeness remains weak: the face dominates the body, the seated angle is lost, and crossed hands become dark lobes without traceable wrists or fingers. Readable facial details add some drawing complexity, but clothing, landscape and material treatment remain sparse.

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

Compare category scores
CategoryDeepSeek V4.1 FlashMISSINGNO.
Task & likeness3.5/101.5/10
Anatomy & construction3.0/102.5/10
Space & placement4.5/102.5/10
Light & reflections4.5/103.0/10
Purposeful detail3.0/102.0/10
Artistry & character4.0/103.5/10
Materials & effects3.0/102.0/10
Visual integrity5.5/106.0/10

Beach

Different task instructions

DeepSeek V4.1 Flash59.8/100

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.

Benchmark task

A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.

MISSINGNO.43.9/100

MISSINGNO.: Beach SVG benchmark
Researcher observations

A coherent sunset beach with clear requested subjects, balanced framing and clean shapes. The aligned solar reflection and warm gradients establish atmosphere. Primitive animal construction, ambiguous furniture, sparse depth cues and minimally developed surfaces limit its drawing complexity and physical richness.

Benchmark task

A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.

Compare category scores
CategoryDeepSeek V4.1 FlashMISSINGNO.
Task & likeness8.0/107.0/10
Anatomy & construction5.5/104.0/10
Space & placement6.5/106.5/10
Light & reflections6.5/105.0/10
Purposeful detail5.5/103.0/10
Artistry & character5.0/103.0/10
Materials & effects6.0/105.0/10
Visual integrity5.5/103.5/10

Ground Truth

Same task instructions

DeepSeek V4.1 Flash38.0/100

DeepSeek V4.1 Flash: Ground Truth SVG benchmark
Benchmark task

A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.

MISSINGNO.44.1/100

MISSINGNO.: Ground Truth SVG benchmark
Benchmark task

A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.

Raccoon

Different task instructions

DeepSeek V4.1 Flash43.4/100

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.

Benchmark task

A jet-ski scene pairs a canine driver with a raccoon passenger. It tests the placement and contact of interacting subjects, along with vehicle construction.

MISSINGNO.57.5/100

MISSINGNO.: Raccoon SVG benchmark
Researcher observations

The requested interaction reads clearly through recognizable animals, expressive faces and a coherent hull-water relationship. Clean curves and readable accessories give the cartoon polish. Partly unresolved grips and supporting contacts limit physical construction; modest shape complexity, weak directional lighting and schematic water constrain its finish.

Benchmark task

A jet-ski scene pairs a canine driver with a raccoon passenger. It tests the placement and contact of interacting subjects, along with vehicle construction.

Compare category scores
CategoryDeepSeek V4.1 FlashMISSINGNO.
Task & likeness4.0/108.0/10
Anatomy & construction4.0/105.0/10
Space & placement5.0/105.5/10
Light & reflections6.0/105.0/10
Purposeful detail3.0/106.0/10
Artistry & character3.5/105.0/10
Materials & effects4.0/104.5/10
Visual integrity6.5/107.0/10

Pelican

Different task instructions

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.

Benchmark task

A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.

MISSINGNO.58.8/100

MISSINGNO.: Pelican SVG benchmark
Researcher observations

A coherent, cheerful illustration with recognizable pelican features, balanced composition, clean contours and useful small details. Its controlled curves and layered wheels demonstrate competent drawing skill. Ambiguous pedal and steering contacts, sparse drivetrain construction and weak directional lighting limit the riding mechanics and finish.

Benchmark task

A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.

Compare category scores
CategoryDeepSeek V4.1 FlashMISSINGNO.
Task & likeness8.5/107.0/10
Anatomy & construction7.0/105.5/10
Space & placement7.5/106.0/10
Light & reflections7.0/105.0/10
Purposeful detail7.5/105.5/10
Artistry & character8.0/106.0/10
Materials & effects7.0/104.5/10
Visual integrity8.0/106.5/10