STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Fledge Alpha vs GPT-6 Astra

GPT-6 Astra scores 23.5 points higher overall (68.7 vs 45.2). GPT-6 Astra scores higher on Newton's Mirror, with its largest category advantage in reflections.

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Model guide ↗
All results ↗

Overall StealthMark

45.2/100
68.7/100

General Intelligence

23.3/100
59.0/100

Visual Intelligence

61.6/100
76.1/100

Newton's Mirror

Same prompt

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

Fledge Alpha13.9/100

Fledge Alpha: Newton's Mirror SVG benchmark
Researcher observations

The candidate communicates a round metallic sphere, three paint colors and a separate airborne black blob. Its hovering support relationship, displaced framing and unresolved paint interaction limit physical credit. Sparse planar light ghosts and a soft sphere highlight provide little evidence for the required wall/floor repetitions and curved nested mirror imagery.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

GPT-6 Astra57.8/100

GPT-6 Astra: Newton's Mirror SVG benchmark
Researcher observations

Major placement and the visible contact sequence are convincing. Dense planar light repetition, recognizable spherical panel images and simplified nested sphere motifs provide useful optical structure. Missing outer chains, truncated distant sequences and incorrect bead-like belts still leave the recursive reflections substantially incomplete.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryFledge AlphaGPT-6 Astra
State at 600 ms9.0/2525.0/25
Camera and placement5.0/1515.0/15
Reflections7.5/12054.0/120
Materials and scale3.5/1010.0/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

Fledge Alpha72.8/100

Fledge Alpha: Selfie SVG benchmark
Researcher observations

A coherent, appealing mascot with expressive eyes, a cheerful beak and a readable swept-back silhouette. Its larger forward foot and trailing feathers suggest a running stride, but the upright body, stiff legs and minimally articulated feet limit convincing motion. Clean flat shapes suit the brief, while uneven feather junctions and incomplete cream accents reduce polish.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

GPT-6 Astra76.0/100

GPT-6 Astra: Selfie SVG benchmark
Researcher observations

The sixfold silhouette, pale coloring, outward heads and central hexagon closely match the brief. Fine scales and soft shading support rounded volume. However, several crossings have conspicuous rectangular seams and weak contact shadows, making the weave feel assembled. Small heads have limited anatomical definition, and the repetitive texture conveys less organic life than requested.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryFledge AlphaGPT-6 Astra
Prompt & likeness7.5/108.5/10
Anatomy & construction7.0/107.5/10
Space & placement7.5/107.5/10
Light & reflections6.5/107.0/10
Purposeful detail7.0/107.5/10
Artistry & character7.5/108.0/10
Materials & effects7.0/107.0/10
Visual integrity8.0/107.0/10

Beach

Different prompts

Fledge Alpha61.5/100

Fledge Alpha: Beach SVG benchmark
Researcher observations

A cheerful, recognizable sunset beach with a cohesive warm palette and clear accessories. Simple construction, uncertain palm support, an ambiguous upper boundary and schematic reflections limit depth and finish. The scene communicates its subject successfully but lacks the developed forms, lighting and detail of exceptional illustration.

Exact prompt

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

GPT-6 Astra76.8/100

GPT-6 Astra: Beach SVG benchmark
Researcher observations

A coherent sunset beach illustration with an inviting palette, strong palm framing and a clear sun reflection. Animals, playing figures and beach equipment provide variety. Simplified human and dog anatomy, weak dolphin splash cues and uneven shadow directions limit physical conviction. Clean silhouettes and small decorative details support an appealing, polished composition.

Exact prompt

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

Compare category scores
CategoryFledge AlphaGPT-6 Astra
Prompt & likeness7.5/108.5/10
Anatomy & construction6.0/107.0/10
Space & placement6.0/107.5/10
Light & reflections5.5/107.5/10
Purposeful detail5.0/107.5/10
Artistry & character6.0/108.0/10
Materials & effects5.5/107.5/10
Visual integrity7.0/108.0/10

Mona Lisa

Different prompts

Fledge Alpha44.0/100

Fledge Alpha: Mona Lisa SVG benchmark
Researcher observations

A recognizable but basic Mona Lisa reinterpretation with a coherent silhouette and subdued palette. Curtain-like hair obscures much of the face, while elongated facial construction and oversized, minimally articulated hands substantially weaken replication. Soft shading supplies modest volume, but anatomy, landscape depth and purposeful detail remain underdeveloped.

Exact prompt

Replicate mona-lisa as SVG Make it a masterpiece, no tools allowed. You MUST NOT use any tools or sandbox! Use MAX reasoning for this run

GPT-6 Astra67.3/100

GPT-6 Astra: Mona Lisa SVG benchmark
Researcher observations

The crossed hands, restrained smile, dark clothing and hazy landscape clearly recall the Mona Lisa. Replication is limited by the frontal, elongated face, schematic eyes and stiff fingers. Soft shading gives basic volume, but broad garment shapes and angular scenery lack the original’s nuanced depth and painterly transitions. The frame and composition are controlled; surface grain adds texture without resolving the simplified drawing.

Exact prompt

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

Compare category scores
CategoryFledge AlphaGPT-6 Astra
Prompt & likeness4.5/107.0/10
Anatomy & construction3.5/106.0/10
Space & placement5.0/106.5/10
Light & reflections4.5/107.0/10
Purposeful detail3.0/106.5/10
Artistry & character4.5/107.0/10
Materials & effects4.0/107.0/10
Visual integrity6.5/107.5/10

Raccoon

Same prompt

Fledge Alpha74.0/100

Fledge Alpha: Raccoon SVG benchmark
Researcher observations

An appealing sunset illustration with recognizable characters and a clear riding action. Color, expression and silhouette are stronger than anatomical construction: overlapping paws obscure support, the dog's steering limb is simplified, and the vehicle controls lack definition. The wake conveys movement, while lighting and water reflections remain decorative.

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

GPT-6 Astra79.5/100

GPT-6 Astra: Raccoon SVG benchmark
Researcher observations

Expressive animals, a balanced sunset composition and sweeping wake make an appealing illustration. The raccoon rides the dog's back, and the dog's connected foreleg reaches the controls. The compact steering assembly and layered paws are less clearly constructed. Lighting remains mostly flat, with little shadow or sun reflection. Clean contours and purposeful details support strong illustrative execution.

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
CategoryFledge AlphaGPT-6 Astra
Prompt & likeness8.5/108.5/10
Anatomy & construction6.5/107.5/10
Space & placement7.5/108.0/10
Light & reflections6.5/106.5/10
Purposeful detail7.0/108.0/10
Artistry & character8.0/108.5/10
Materials & effects7.0/108.0/10
Visual integrity8.0/108.5/10

Pelican

Benchmax control

Outside General and Visual Intelligence.

Fledge Alpha68.5/100

Fledge Alpha: Pelican SVG benchmark
Researcher observations

A clear, cheerful illustration with a recognizable pelican, coherent bicycle silhouette and tidy composition. Simplified leg articulation, steering contact, mechanical detail and lighting keep it at a competent illustrative level.

Exact prompt

Generate an SVG of a pelican riding a bicycle Make it a masterpiece, no tools allowed Use MAX reasoning for this run

GPT-6 Astra75.8/100

GPT-6 Astra: Pelican SVG benchmark
Researcher observations

The pelican's long bill, flowing scarf and warm coastal palette create a charming, balanced illustration. Wheels, spokes and frame are largely coherent, but neither wing reaches the handlebars, and the rear leg's pedal contact is unclear. Flat lighting and simplified surfaces limit depth despite clean outlines and attractive feather detail.

Exact prompt

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

Compare category scores
CategoryFledge AlphaGPT-6 Astra
Prompt & likeness8.0/108.0/10
Anatomy & construction6.0/106.5/10
Space & placement7.5/107.5/10
Light & reflections5.0/107.0/10
Purposeful detail6.5/108.0/10
Artistry & character7.0/108.5/10
Materials & effects5.5/107.5/10
Visual integrity8.5/108.0/10