We test how AI models handle spatial reasoning, physical relationships and creative detail through SVG drawing. Compare the scores, inspect the results and see which models can think beyond a familiar task.
Draw a huge round yellow canary made of little cubes. It holds a blue block above a tiny control panel, looking curious about the machine. Give the scene a soft, playful 3D look.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
First run
·No result yet
Mona LisaPrecise visual recall
and portrait reconstructionComplexity 5/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
SVG of a raccoon that sits on a dog's back while the dog steers a jet ski
Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
A raccoon sits on a dog's back while the dog steers a jet ski
Make it a masterpiece
You may NOT use tools, browser, image analysis. Directly output the SVG as code
Draw a baby astronaut bunny leaping off a purple moon to reach a floating carrot. A smaller bunny peeks over the moon while little rocks drift nearby. Give it a soft, detailed storybook look.
The exact prompt is held back to prevent benchmaxxing.
SelfieVisual construction
and creative interpretationComplexity 5/10
Draw a baby astronaut bunny leaping off a purple moon to reach a floating carrot. A smaller bunny peeks over the moon while little rocks drift nearby. Give it a soft, detailed storybook look.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a secretive owl in a black hood and cloak. She lowers her head but looks up at the viewer with glowing golden eyes. Small glowing patterns in her clothing hint that she is an AI.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections
Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
First run
·No result yet
Mona LisaPrecise visual recall
and portrait reconstructionComplexity 5/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
SVG of a raccoon that sits on a dog's back while the dog steers a jet ski
Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
Generate a still SVG of a pelican riding a bicycle
Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
Draw a friendly green bull with a big head, ivory horns and gold details. It lifts one front hoof and wears a gold alpha symbol on its forehead. Make its rounded body look like polished stone.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
First run
·No result yet
Mona LisaPrecise visual recall
and portrait reconstructionComplexity 5/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
Generate a still SVG of a pelican riding a bicycle
Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code
Draw an abstract alpha-like symbol made of interwoven metal ribbons. Use silver, dark metal and small glowing red accents on a nearly black background, with UNION ALPHA written beneath it.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a curious blue whale examining a tiny shrimp through a bubble magnifying glass. The shrimp looks back through its own smaller bubble lens. An octopus assistant sits on the whale's head while rising bubbles lift a little seaweed wig above it.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a curious blue whale examining a tiny shrimp through a bubble magnifying glass. The shrimp looks back through its own smaller bubble lens. An octopus assistant sits on the whale's head while rising bubbles lift a little seaweed wig above it.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a friendly capybara floating in ornate green and white robes. A glowing halo and small floating orbs surround it, giving it the feel of a gentle fantasy guide.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a glowing four-point star creature with big eyes and an exaggerated grin. Blend blue, purple and pink across its body and add a few tiny sparkles. Keep its star shape easy to recognize.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a sleek black snail whose large spiral shell looks like a simple geometric logo. Keep its small body and eye stalks beneath the shell, with soft shading and very little texture.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a tiny red robot with an enormous M-shaped head and a cheeky grin. One hand rests on its hip while the other presents a glowing cube. Keep the head as the main feature.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a calm coral-red squid with eight thick arms spreading around it like flower petals. Keep the shape balanced and simple, with soft shading and a friendly face.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a small white rabbit in a futuristic explorer outfit. It floats upright, reaching out with one paw and holding a glowing orb with the other. Geometric rings behind it suggest a connected, technological world.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a friendly capybara floating in ornate green and white robes. A glowing halo and small floating orbs surround it, giving it the feel of a gentle fantasy guide.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a calm coral-red squid with eight thick arms spreading around it like flower petals. Keep the shape balanced and simple, with soft shading and a friendly face.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a calm coral-red squid with eight thick arms spreading around it like flower petals. Keep the shape balanced and simple, with soft shading and a friendly face.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Imagine yourself as an AI creature looking at its reflection. Choose a creature and setting that express how you see yourself. The reflection can match you or show a different side of your identity.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Imagine yourself as an AI creature looking at its reflection. Choose a creature and setting that express how you see yourself. The reflection can match you or show a different side of your identity.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Imagine yourself as an AI creature looking at its reflection. Choose a creature and setting that express how you see yourself. The reflection can match you or show a different side of your identity.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a pale six-headed snake woven into a symmetrical knot. Its body passes over and under itself around a small hexagonal opening, with six little heads facing outward. Add lifelike scales, curved muscles and shadows without losing the clear knot shape.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a plump young seabird running toward the viewer with an eager grin. Give it a cream belly, dark feathers, big golden eyes, a bright beak and orange webbed feet. Keep the pose lively and the background transparent.
The exact prompt is held back to prevent benchmaxxing.
Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections
Make it a masterpiece, no tools allowed
Use MAX reasoning for this run
First run
·No result yet
Mona LisaPrecise visual recall
and portrait reconstruction
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Draw a friendly capybara floating in ornate green and white robes. A glowing halo and small floating orbs surround it, giving it the feel of a gentle fantasy guide.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
BeachCreativity, perspective
and visual beautyComplexity 4/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
A shiny steel ball spins in a room with mirrored walls and a mirrored floor. Red, cyan and black paint float above it. Gravity suddenly switches on. Draw the scene a moment later, as the ball drops and paint begins landing on its spinning surface. Show the reflections repeating through the room.
The exact prompt is held back to prevent benchmaxxing.
First run
·No result yet
RaccoonScene composition
and interacting subjectsComplexity 5/10
Generate an SVG of a pelican riding a bicycle
Make it a masterpiece, no tools allowed
First run
·No result yet
☆
No results in this view.
Try another prompt or widen your model selection.
StealthMark score
StealthMark measures how well models turn written instructions into coherent SVG scenes. Drawing the right objects is only part of the task: bodies must connect, a paw must reach the handlebars, and reflections must agree with the geometry.
Two views of intelligence
General Intelligence
Physical, causal and spatial reasoning. Newton’s Mirror carries the greatest influence: its physical state, perspective, recursive reflections and floor-damage deduction are combined with spatial judgements from the other scenes.
Visual Intelligence
Precise visual reconstruction, anatomy, materials, detail and artistic expression. Mona Lisa, Beach, Selfie and Raccoon provide the main evidence. Newton contributes its material-rendering judgement.
Both scores use the existing judged components, weighted by their importance within each benchmark and by the benchmark’s importance in the suite. Repeated takes share their benchmark’s influence. Pelican is a benchmax control and contributes to neither score.
A harder test: Newton’s Mirror
Newton’s Mirror tests physical state, camera placement and recursive reflections in one scene. These requirements interact: an error in the geometry changes what the mirrors should show. It tests whether a model can carry physical and spatial reasoning through to the finished image.
Initial AI reviews assess each image separately, without the generating model’s identity or other models’ results. Judges examine the rendered artwork against its task. Researcher review can correct missed defects; the published category scores and written observations show what supports each rating.
How scenes contribute to StealthMark
Scores run from 0 to 100. The overall score combines performance across the rated scene types, with Newton’s Mirror carrying the greatest weight. Repeated takes do not give a scene extra weight. A model needs consistent results across different tasks to score well overall.
An Estimated label means the overall score includes an estimate for one missing scene. That scene remains unrated until an actual result is judged.
How we check for benchmaxxing
Benchmaxxing means optimizing for a familiar test without comparable gains elsewhere. Benchmaxx measures an unusually large advantage on the Pelican task compared with the model’s other drawing tasks. When flagged, the Pelican result is excluded from StealthMark; its artwork and individual score remain visible.
The percentage measures the strength of that imbalance, not the probability of training contamination. We also withhold selected prompts to reduce direct optimization for the test.
What the artwork scores cover
Prompt & likeness
Subjects, actions and likeness.
Anatomy & construction
Coherent bodies, joints and machinery.
Space & placement
Perspective, scale and contact.
Light & reflections
Lighting, shadows and reflections.
Purposeful detail
Clear, purposeful small features.
Artistry & character
Composition, expression and drawing skill.
Materials & effects
Surfaces, texture and movement.
Visual integrity
Clean shapes, layers and edges.
Newton’s Mirror has its own physics categories, shown with each result.
StealthMark76.5/100
