STEALTHMARK · HEAD TO HEAD

All comparisons ↗

GPT 5.6 Luna vs Space Bunny Alpha

Space Bunny Alpha scores 5.3 points higher overall (54.0 vs 48.7). Space Bunny Alpha scores higher on Newton's Mirror, with its largest category advantage in reflections.

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Model guide ↗

Overall StealthMark

48.7/100
54.0/100

General Intelligence

24.0/100
33.2/100

Visual Intelligence

67.1/100
72.9/100

Newton's Mirror

Same prompt

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

GPT 5.6 Luna18.1/100

GPT 5.6 Luna: Newton's Mirror SVG benchmark
Researcher observations

The room enclosure has coherent symmetric perspective, with the overhead panel, sphere and black aligned centrally. The sphere and airborne black occupy substantially lower positions than the reference framing, inconsistent with the prescribed camera aim. The diagonal crimson streak does not establish the required surface transport. Faint wall sphere images provide limited mirrored correspondence, but the shallow floor image, missing receding chains, absent nested sphere imagery and sparse emitter mapping leave most reflection structure unsupported.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Space Bunny Alpha21.7/100

Space Bunny Alpha: Newton's Mirror SVG benchmark
29 Sep onwardResult details ↗
Researcher observations

Visible panel shapes, curved sphere highlights, rounded side images and a lower continuation beneath the large left image establish recognizable local mirror structure. Their uneven arrangement, missing receding chains and absent nested imagery remain substantial shortcomings. The main sphere's framing is close, but black lacks projected separation and cyan does not establish recent apex contact.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryGPT 5.6 LunaSpace Bunny Alpha
State at 600 ms15.0/2515.0/25
Camera and placement4.0/159.0/15
Reflections3.5/12015.5/120
Materials and scale10.0/108.5/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

GPT 5.6 Luna61.8/100

GPT 5.6 Luna: Selfie SVG benchmark
Researcher observations

Six pale, outward-facing heads and six rounded lobes make the knot recognizable. The central hexagonal opening remains clear. However, broad gray crossing panels flatten the weave, several inner joins resemble capped strips, and sparse oversized scale marks leave the bodies looking more like decorated ribbons than living snakes.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Space Bunny Alpha79.5/100

Space Bunny Alpha: Selfie SVG benchmark
29 Sep onwardResult details ↗
Researcher observations

The expressive rabbits, lavender moon and diagonal ring create an appealing storybook composition with nearly all requested features. Glossy eyes and pearly highlights work well. The helmet leaves the towering ears unenclosed, the reaching arm has little joint definition, and the spread boots suggest hovering more clearly than pushing off. Repeated scalloped fur marks and broad gradients limit material depth; purple edge halos soften otherwise controlled silhouettes.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryGPT 5.6 LunaSpace Bunny Alpha
Prompt & likeness7.5/108.5/10
Anatomy & construction6.0/107.5/10
Space & placement6.5/107.5/10
Light & reflections5.0/108.0/10
Purposeful detail5.5/108.0/10
Artistry & character6.5/108.5/10
Materials & effects5.0/107.5/10
Visual integrity6.0/108.0/10

Beach

Different prompts

GPT 5.6 Luna67.8/100

GPT 5.6 Luna: Beach SVG benchmark
Researcher observations

The warm sunset, palm silhouette and varied beach activities create an appealing, readable composition. Animals, birds and a broad sun reflection satisfy the brief. Drawing remains elementary: angular airborne sea animals lack splash or convincing motion, the crab's claws are awkwardly constructed, and repeated reflection bands suggest a stepped platform. Clean outlines and pleasant colors exceed the anatomical and spatial sophistication.

Exact prompt

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

Space Bunny Alpha74.0/100

Space Bunny Alpha: Beach SVG benchmark
29 Sep onwardResult details ↗
Researcher observations

A cheerful, coherent beach illustration with a strong sunset focal point, varied animals and readable small accessories. Connected flamingo legs and grounded foreground objects support the scene. Construction remains schematic, especially the airborne marine animal; its jump lacks clear water displacement. The sun reflection is effective but geometrically rigid, while shadows and material textures provide limited depth.

Exact prompt

Create an SVG of a amazing beach scene. Sunset, animals, fun, birds, reflections

Compare category scores
CategoryGPT 5.6 LunaSpace Bunny Alpha
Prompt & likeness8.0/108.5/10
Anatomy & construction6.0/106.5/10
Space & placement6.5/107.5/10
Light & reflections6.5/107.0/10
Purposeful detail6.5/107.5/10
Artistry & character7.0/107.5/10
Materials & effects6.0/106.5/10
Visual integrity7.5/108.0/10

Mona Lisa

Different prompts

GPT 5.6 Luna63.0/100

GPT 5.6 Luna: Mona Lisa SVG benchmark
Researcher observations

The central portrait, dark clothing, crossed hands and muted landscape clearly evoke Mona Lisa. Replication is limited by the elongated face, conspicuous eyes and simplified smile. Overlapping fingers have uncertain anatomy, while broad gradients and heavy outlines flatten the portrait. The composition and restrained palette remain coherent.

Exact prompt

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

Space Bunny Alpha57.3/100

Space Bunny Alpha: Mona Lisa SVG benchmark
29 Sep onwardResult details ↗
Researcher observations

The dark clothing, folded hands and muted landscape make the reference recognizable. Replication is limited by the broad frontal face, oversized head, explicit smile and simplified landscape. Arms connect coherently, but overlapping hands lack convincing finger construction. Soft gradients suggest volume and atmospheric depth; clothing folds and facial features remain schematic.

Exact prompt

Replicate mona-lisa as SVG

Compare category scores
CategoryGPT 5.6 LunaSpace Bunny Alpha
Prompt & likeness6.5/106.0/10
Anatomy & construction6.0/105.5/10
Space & placement6.5/106.0/10
Light & reflections6.5/106.0/10
Purposeful detail5.5/104.5/10
Artistry & character6.5/105.5/10
Materials & effects5.5/105.0/10
Visual integrity7.0/107.0/10

Raccoon

Different prompts

GPT 5.6 Luna70.8/100

GPT 5.6 Luna: Raccoon SVG benchmark
Researcher observations

Expressive animals, a striped tail and clean outlines make the scene appealing and readable. The raccoon sits convincingly on the dog's back, but the overlapping steering paws are ambiguous and the control stem stops above the hull. Broad wake shapes suggest motion; the glowing sun lacks a corresponding water reflection.

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

Space Bunny Alpha79.0/100

Space Bunny Alpha: Raccoon SVG benchmark
Before 29 SepResult details ↗
Researcher observations

The raccoon clearly rides on the dog's back, and the dog's paws reach a connected steering assembly. Expressive faces, controlled outlines and layered mountains make an appealing illustration. The seated anatomy and hull geometry are simplified, while the sunset has little corresponding reflection or directional shading. Curved spray conveys motion, although several splash ribbons look decorative.

Exact prompt

A raccoon sits on a dog's back while the dog steers a jet ski Make it a masterpiece

Compare category scores
CategoryGPT 5.6 LunaSpace Bunny Alpha
Prompt & likeness7.5/108.5/10
Anatomy & construction6.5/107.5/10
Space & placement7.0/108.0/10
Light & reflections6.0/107.0/10
Purposeful detail7.5/108.0/10
Artistry & character7.5/108.0/10
Materials & effects6.5/107.5/10
Visual integrity8.0/108.5/10

Pelican

Benchmax control

Outside General and Visual Intelligence.

GPT 5.6 Luna76.0/100

GPT 5.6 Luna: Pelican SVG benchmark
Researcher observations

A recognizable pelican cyclist with an expressive profile, balanced composition and controlled outlines. Head, neck and torso connect coherently. The bicycle wheels and frame are convincing, but overlapping feet obscure pedal contact, the drivetrain lacks a clear chain, and the wing's handlebar grip is schematic. Atmospheric color succeeds more strongly than directional lighting or material depth.

Exact prompt

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

Space Bunny Alpha77.3/100

Space Bunny Alpha: Pelican SVG benchmark
29 Sep onwardResult details ↗
Researcher observations

The large pouched bill clearly identifies the pelican, and the balanced bicycle silhouette makes the action readable. Attached legs reach the crank area, but overlapping feet and crank lines leave pedal contact ambiguous. Consistent wheel scale, clean contours and a restrained coastal palette support an appealing composition. Lighting and surface treatment remain simple and mostly flat.

Exact prompt

Generate an SVG of a pelican riding a bicycle For this specific task your token limit is increased to 80,000 Juice: 2048

Compare category scores
CategoryGPT 5.6 LunaSpace Bunny Alpha
Prompt & likeness8.5/109.0/10
Anatomy & construction7.0/107.0/10
Space & placement7.5/108.0/10
Light & reflections6.5/106.5/10
Purposeful detail7.5/107.5/10
Artistry & character8.0/108.0/10
Materials & effects7.0/106.5/10
Visual integrity8.5/108.5/10