STEALTHMARK · HEAD TO HEAD

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GPT 6 Luna vs MISSINGNO.

GPT 6 Luna scores 2.8 points higher overall (40.8 vs 38.0). MISSINGNO. leads General Intelligence; GPT 6 Luna leads Visual Intelligence. MISSINGNO. scores higher on Ground Truth.

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Model guide ↗

Overall StealthMark

40.8/100
38.0/100

General Intelligence

28.8/100
33.6/100

Visual Intelligence

55.1/100
43.3/100

Newton's Mirror

Same task instructions

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

GPT 6 Luna26.6/100

GPT 6 Luna: Newton's Mirror SVG benchmark
Researcher observations

The schematic scene supports the paint contact order and compact paint scale. Its low, undersized main sphere and incorrectly placed wall images depart from the reference geometry. A few shrinking wall images provide limited optical organization, while absent lateral recursion and outer chains, broad sphere ribbons and isolated panel highlights leave most nested room and emitter mapping undeveloped.

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
CategoryGPT 6 LunaMISSINGNO.
State at 600 ms22.0/2511.5/25
Camera and placement3.5/157.0/15
Reflections5.0/12012.0/120
Materials and scale7.0/105.5/10
Floor-damage reward0.0/100.0/10

Selfie

Different task instructions

GPT 6 Luna45.6/100

GPT 6 Luna: Selfie SVG benchmark
Researcher observations

Sixfold symmetry, pale coloring and six outward-facing heads establish the motif. However, every neck floats clear of the knot. Squared outer sections replace the required semicircular lobes, and the large stepped opening lacks a regular hexagonal contour. Repeated scales and soft shading suggest skin, but translucent crossings and doubled edges weaken the living, interwoven construction.

Benchmark task

A pale serpent woven into an interlocking knot tests connected anatomy, repeated structure and readable overlaps. Organic surface detail must work with the overall geometry.

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
CategoryGPT 6 LunaMISSINGNO.
Task & likeness4.5/105.5/10
Anatomy & construction3.5/104.5/10
Space & placement5.5/106.0/10
Light & reflections5.0/105.5/10
Purposeful detail5.0/104.5/10
Artistry & character5.0/104.5/10
Materials & effects5.0/104.0/10
Visual integrity4.5/106.0/10

Mona Lisa

Different task instructions

GPT 6 Luna47.4/100

GPT 6 Luna: Mona Lisa SVG benchmark
Researcher observations

The dark veil, crossed arms, restrained smile and layered landscape clearly evoke Mona Lisa. Clean contours and muted colors create a coherent illustration. Replication is limited by enlarged, outlined eyes, simplified facial volume, broad shoulders and indistinct overlapping hands. Gradients suggest depth, but lack the original's subtle painterly transitions.

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
CategoryGPT 6 LunaMISSINGNO.
Task & likeness4.5/101.5/10
Anatomy & construction4.0/102.5/10
Space & placement5.5/102.5/10
Light & reflections5.0/103.0/10
Purposeful detail5.0/102.0/10
Artistry & character4.5/103.5/10
Materials & effects5.0/102.0/10
Visual integrity6.0/106.0/10

Beach

Different task instructions

GPT 6 Luna63.5/100

GPT 6 Luna: Beach SVG benchmark
Researcher observations

The warm sky, layered sea and framing palms create an appealing beach composition. Animals, birds, toys and reflected sunlight fulfill the brief. Human anatomy remains schematic, and simplified figures offer limited expression. Missing shadows and the dolphin's splashless jump weaken physical grounding, while clean silhouettes and readable small details support the illustration.

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
CategoryGPT 6 LunaMISSINGNO.
Task & likeness8.0/107.0/10
Anatomy & construction5.5/104.0/10
Space & placement7.5/106.5/10
Light & reflections5.0/105.0/10
Purposeful detail7.0/103.0/10
Artistry & character5.5/103.0/10
Materials & effects7.0/105.0/10
Visual integrity7.5/103.5/10

Ground Truth

Same task instructions

GPT 6 Luna28.9/100

GPT 6 Luna: 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

GPT 6 Luna66.5/100

GPT 6 Luna: Raccoon SVG benchmark
Researcher observations

Expressive faces, warm sunset colors and clean silhouettes create an appealing illustration. The raccoon sits on the dog's back, but the dog's grip and steering linkage remain unclear. The broad hull resembles a speedboat, and flat shading, absent sun reflections and modest water displacement limit depth and motion.

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
CategoryGPT 6 LunaMISSINGNO.
Task & likeness8.0/108.0/10
Anatomy & construction6.5/105.0/10
Space & placement7.5/105.5/10
Light & reflections6.0/105.0/10
Purposeful detail7.0/106.0/10
Artistry & character5.5/105.0/10
Materials & effects6.5/104.5/10
Visual integrity7.0/107.0/10

Pelican

Different task instructions

GPT 6 Luna68.0/100

GPT 6 Luna: Pelican SVG benchmark
Researcher observations

The pelican’s distinctive bill and the coordinated vintage poster palette make an appealing illustration. Circular wheels, orderly spokes and clean lettering strengthen the design. Riding mechanics are less convincing: neither wing reaches the handlebars, pedal contact is ambiguous, and the drivetrain is incomplete. The wheels sit against water without a clear supporting surface. Flat lighting limits volume.

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
CategoryGPT 6 LunaMISSINGNO.
Task & likeness8.0/107.0/10
Anatomy & construction5.5/105.5/10
Space & placement6.5/106.0/10
Light & reflections6.5/105.0/10
Purposeful detail7.5/105.5/10
Artistry & character7.0/106.0/10
Materials & effects6.5/104.5/10
Visual integrity7.5/106.5/10