STEALTHMARK · HEAD TO HEAD

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GLM-5.3 vs GLM-5.3-Flash (Ox Alpha)

GLM-5.3-Flash (Ox Alpha) scores 7.6 points higher overall (53.5 vs 45.9). Ox Alpha scores higher on Ground Truth.

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Model guide ↗

Overall StealthMark

45.9/100
53.5/100

General Intelligence

35.3/100
48.7/100

Visual Intelligence

58.6/100
60.3/100

Newton's Mirror

Same prompt

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

GLM-5.328.3/100

GLM-5.3: Newton's Mirror SVG benchmark
Researcher observations

The sphere has readable rounded volume, and the compact black blob remains distinctly above it, supporting pre-impact separation. The extensive red and cyan coatings do not establish the required interaction history or paint scale. The sphere and black are substantially displaced downward. A centered upper panel, paired side patches and a vertically aligned partial floor image provide limited reflection cues, but ordered mirror-room repetitions and curved spherical imagery are largely missing.

Simplified prompt

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.

GLM-5.3-Flash (Ox Alpha)27.4/100

Ox Alpha: Newton's Mirror SVG benchmark
Researcher observations

The setup is recognizable, but the paint interaction remains poorly established and off-center. The first wall and floor images provide coherent placement, scale, silhouette and occlusion cues, with faint lower echoes. Missing receding chains, nested imagery and ordered emitter mappings leave the reflection system heavily simplified. Dull shading does not convincingly depict polished steel or mirrors.

Simplified prompt

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.

Compare category scores
CategoryGLM-5.3GLM-5.3-Flash (Ox Alpha)
State at 600 ms11.0/2512.5/25
Camera and placement9.5/1510.0/15
Reflections10.0/12021.5/120
Materials and scale8.0/103.5/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

GLM-5.377.6/100

GLM-5.3: Selfie SVG benchmark
Researcher observations

A luminous organic creature meets a geometric reflection in a carefully framed oval mirror. Shared glowing cores and fingertip contact make the introspective symbolism clear. Gold, cream and blue establish a controlled hierarchy. The creature’s lower anatomy and shoulder transition remain loosely defined, while ground contact and reflected depth are mostly symbolic. Elegant vector illustration rather than photographic rendering.

Simplified prompt

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.

GLM-5.3-Flash (Ox Alpha)77.5/100

Ox Alpha: Selfie SVG benchmark
Researcher observations

The expressive emerald face, ivory horns, gold accents and fine veining closely match the brief. Rounded volumes and layered shading create an appealing mascot. Rear hoof placement is cramped, lighting is somewhat inconsistent, and conspicuous white patches behind the muzzle interrupt the finish. Surfaces remain visibly stylized rather than photographic.

Simplified prompt

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.

Compare category scores
CategoryGLM-5.3GLM-5.3-Flash (Ox Alpha)
Prompt & likeness9.0/108.5/10
Anatomy & construction7.0/107.5/10
Space & placement7.5/107.5/10
Light & reflections8.0/108.0/10
Purposeful detail8.0/108.0/10
Artistry & character7.5/107.5/10
Materials & effects7.5/108.0/10
Visual integrity8.0/107.0/10

Mona Lisa

Different prompts

GLM-5.330.0/100

GLM-5.3: Mona Lisa SVG benchmark
Researcher observations

Recognizable Mona Lisa motifs include the dark veil, restrained smile, folded hands and muted landscape. Clean silhouettes and balanced framing support the portrait, but the frontal symmetry, elongated face, minimally articulated hands and broad background bands make the replication basic. Facial shading offers some volume; clothing and landscape remain mostly flat.

Exact prompt

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

GLM-5.3-Flash (Ox Alpha)49.5/100

Ox Alpha: Mona Lisa SVG benchmark
Researcher observations

The crossed arms, green dress and hazy landscape clearly evoke Mona Lisa. Replication is limited by the frontal pose, oversized eyes, elongated face and pronounced lips. Overlapping finger strips lack convincing knuckles and palm volume. The balanced framing and soft shading provide cohesion, but simplified anatomy, repetitive folds and blurred scenery keep the portrait basic.

Exact prompt

Generate an SVG of mona-lisa Make it a masterpiece You may NOT use tools, browser, image analysis. Directly output the SVG as code

Compare category scores
CategoryGLM-5.3GLM-5.3-Flash (Ox Alpha)
Prompt & likeness3.0/104.5/10
Anatomy & construction2.0/104.5/10
Space & placement3.0/106.0/10
Light & reflections4.5/106.0/10
Purposeful detail3.0/105.0/10
Artistry & character2.5/105.0/10
Materials & effects3.5/105.5/10
Visual integrity4.0/104.0/10

Beach

Different prompts

GLM-5.375.7/100

GLM-5.3: Beach SVG benchmark
Researcher observations

A cohesive, colorful beach illustration with an inviting sunset, readable animals and playful foreground objects. Crisp silhouettes and small accessories reward inspection. Depth remains shallow, airborne dolphins lack convincing launch splashes, and several objects lack grounding shadows. The broad dark shape across the sun weakens the focal hierarchy.

Exact prompt

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

GLM-5.3-Flash (Ox Alpha)77.7/100

Ox Alpha: Beach SVG benchmark
Researcher observations

Framing palms, a vivid sunset palette and balanced kite and umbrella create an appealing beach illustration. Layered water and shoreline give the scene depth, while aligned reflections reinforce the sunset. Small accessories add character and reward inspection. Figures and animals remain schematic, some overlaps are difficult to read, and simplified shadows and flat surfaces limit physical richness.

Exact prompt

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

Compare category scores
CategoryGLM-5.3GLM-5.3-Flash (Ox Alpha)
Prompt & likeness8.5/108.0/10
Anatomy & construction7.5/107.0/10
Space & placement7.0/108.0/10
Light & reflections7.0/108.0/10
Purposeful detail8.0/108.0/10
Artistry & character7.5/108.5/10
Materials & effects6.5/106.5/10
Visual integrity7.5/108.0/10

Ground Truth

Same prompt

GLM-5.347.6/100

GLM-5.3: Ground Truth SVG benchmark
Simplified prompt

A dark steel room has four pillars and two warm ceiling lights. A wooden plank is placed over a computer mouse, with a blueberry on the plank above it. Draw the scene a few seconds later, showing how the objects settle and how the light, shadows and surfaces look.

The exact prompt is held back to prevent benchmaxxing.

GLM-5.3-Flash (Ox Alpha)64.3/100

Ox Alpha: Ground Truth SVG benchmark
Simplified prompt

A dark steel room has four pillars and two warm ceiling lights. A wooden plank is placed over a computer mouse, with a blueberry on the plank above it. Draw the scene a few seconds later, showing how the objects settle and how the light, shadows and surfaces look.

The exact prompt is held back to prevent benchmaxxing.

Raccoon

GLM-5.354.7/100

GLM-5.3: Raccoon SVG benchmark
Researcher observations

The raccoon rides on the dog's back, and the dog reaches toward visible handlebars. Expressive faces and clean colors make the action readable. Overlapping paws and hindquarters weaken anatomical clarity, while the vehicle resembles a flat board with a thin steering post. The wake suggests motion, but water contact, shadows and reflections receive little development.

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
CategoryGLM-5.3GLM-5.3-Flash (Ox Alpha)
Prompt & likeness8.0/10—
Anatomy & construction5.0/10—
Space & placement5.5/10—
Light & reflections4.0/10—
Purposeful detail5.0/10—
Artistry & character4.5/10—
Materials & effects5.0/10—
Visual integrity7.5/10—

Pelican

Benchmax control

Outside General and Visual Intelligence. Excluded from the overall score for GLM-5.3 and GLM-5.3-Flash (Ox Alpha).

GLM-5.359.8/100

GLM-5.3: Pelican SVG benchmark
Researcher observations

The expressive pelican, broad bill and clean coastal composition make the subject immediately readable. Both legs connect to the body and reach pedals, but the front wheel lacks a connected fork and the wings do not engage visible handlebars. Crisp spokes and feather lines add interest; flat lighting, absent ground shadows and a fish floating above the horizon weaken physical coherence.

Exact prompt

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

GLM-5.3-Flash (Ox Alpha)74.8/100

Ox Alpha: Pelican SVG benchmark
Researcher observations

The pelican, bicycle and seaside setting form a clear, appealing illustration. Circular wheels, readable frame tubes and clean silhouettes support the action. The legs connect to the body, but the far foot's pedal contact and wing-to-handlebar junction are cramped. Simple shading, uniform wave marks and limited surface texture keep the rendering relatively flat.

Exact prompt

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

Compare category scores
CategoryGLM-5.3GLM-5.3-Flash (Ox Alpha)
Prompt & likeness7.5/108.5/10
Anatomy & construction4.5/107.0/10
Space & placement6.0/107.5/10
Light & reflections4.0/106.5/10
Purposeful detail6.5/107.0/10
Artistry & character7.0/108.0/10
Materials & effects5.0/106.5/10
Visual integrity7.0/108.0/10