STEALTHMARK · HEAD TO HEAD

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Gemini 3.8 Flash vs GPT 6 Sol

Gemini 3.8 Flash and GPT 6 Sol share an overall StealthMark score of 53.0. GPT 6 Sol leads General Intelligence; Gemini 3.8 Flash leads Visual Intelligence. GPT 6 Sol scores higher on Raccoon, with its largest category advantage in anatomy & construction.

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Overall StealthMark

53.0/100
53.0/100

General Intelligence

31.2/100
32.0/100

Visual Intelligence

69.2/100
68.3/100

Newton's Mirror

Same prompt

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

Gemini 3.8 Flash25.0/100

Gemini 3.8 Flash: Newton's Mirror SVG benchmark
Researcher observations

Crimson is carried well down the camera-facing surface, supporting its earlier interaction. The depiction remains highly simplified, with imperfect material rendering. Isolated wall and floor images and a few highlights provide scant reflective evidence; displaced first reflections, missing receding chains and absent nested sphere and emitter imagery leave the room's optical structure largely unsupported.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

GPT 6 Sol25.3/100

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

The centered sphere, separate airborne black form and color ordering support scene recognition. Rounded shading and curved rims provide readable volume and gloss. Shrinking side images, a floor counterpart and curved lamp highlights provide isolated reflection cues, but broad bands and sparse repetitions leave nested room imagery, outer chains and ordered emitter mapping unsupported. Vertical framing departs from the prescribed view, while paint contact, transport and solid-metal appearance remain weak or uncertain.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryGemini 3.8 FlashGPT 6 Sol
State at 600 ms22.5/2519.0/25
Camera and placement11.0/1512.0/15
Reflections4.5/1208.0/120
Materials and scale7.0/106.5/10
Floor-damage reward0.0/100.0/10

Selfie

Different prompts

Gemini 3.8 Flash82.3/100

Gemini 3.8 Flash: Selfie SVG benchmark
Researcher observations

The dominant four-point silhouette, luminous color progression, raised brows and enormous grin closely fulfill the brief. Attached, secondary limbs support the exuberant expression. Clean facial drawing and glossy eyes give strong character, while shallow depth, minimally articulated extremities and visible steps in the outer glow limit refinement.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

GPT 6 Sol65.8/100

GPT 6 Sol: Selfie SVG benchmark
Researcher observations

Six evenly spaced lobes, small outward-facing heads and a regular hexagonal opening make the motif immediately readable. The central angular band merges several intersections, weakening the alternating weave. Pale shading gives modest volume, but scales are sparse and repetitive, crossing shadows are weak, and the heads have limited anatomical definition.

Prompt withheld

This prompt is held back to prevent benchmaxxing.

Compare category scores
CategoryGemini 3.8 FlashGPT 6 Sol
Prompt & likeness9.5/107.5/10
Anatomy & construction8.0/106.5/10
Space & placement7.5/106.5/10
Light & reflections8.0/106.0/10
Purposeful detail8.0/106.0/10
Artistry & character8.5/107.0/10
Materials & effects8.0/105.5/10
Visual integrity8.0/106.5/10

Beach

Same prompt

Gemini 3.8 Flash75.8/100

Gemini 3.8 Flash: Beach SVG benchmark
Researcher observations

A vivid purple-and-gold sunset anchors an appealing beach composition with dolphins, birds, a turtle and playful accessories. Palm silhouettes frame the bright reflection effectively. Sparse animal anatomy, wirelike palm foliage, conspicuously regular reflection bands and limited surface texture keep the execution below exceptional.

Exact prompt

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

GPT 6 Sol76.0/100

GPT 6 Sol: Beach SVG benchmark
Researcher observations

A cohesive, appealing beach illustration with framing palms, a warm sunset and a clear reflection path. The turtle, crab, birds and beach ball fulfill the playful brief. Clean silhouettes and restrained colors work well, while simplified anatomy, shallow spatial cues and inconsistent foreground shadows limit depth and finish.

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
CategoryGemini 3.8 FlashGPT 6 Sol
Prompt & likeness9.0/108.5/10
Anatomy & construction7.0/107.5/10
Space & placement7.0/107.0/10
Light & reflections7.5/107.0/10
Purposeful detail7.0/107.0/10
Artistry & character8.0/108.0/10
Materials & effects6.5/106.5/10
Visual integrity8.0/108.5/10

Mona Lisa

Same prompt

Gemini 3.8 Flash47.0/100

Gemini 3.8 Flash: Mona Lisa SVG benchmark
Researcher observations

The dark clothing, overlapping hands and hazy landscape make the Mona Lisa reference recognizable. Replication is limited by the frontal, elongated face, heavy mouth and chin, and poorly resolved hands and wrists. Soft shading gives some volume, but muddy transitions, blunt landscape shapes and awkward arm construction weaken the portrait.

Exact prompt

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

GPT 6 Sol53.5/100

GPT 6 Sol: Mona Lisa SVG benchmark
Researcher observations

The dark clothing, crossed arms, restrained smile and distant landscape establish the Mona Lisa reference. Replication is limited by the oversized, nearly frontal head, schematic eyes and fingerless hand shapes. Soft shading suggests facial volume, but muddy transitions and angular scenery weaken depth and painterly finish.

Exact prompt

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

Compare category scores
CategoryGemini 3.8 FlashGPT 6 Sol
Prompt & likeness5.5/106.0/10
Anatomy & construction4.0/104.5/10
Space & placement5.0/105.5/10
Light & reflections5.0/106.0/10
Purposeful detail4.0/104.0/10
Artistry & character5.0/105.5/10
Materials & effects4.5/105.0/10
Visual integrity4.5/106.5/10

Raccoon

Same prompt

Gemini 3.8 Flash69.8/100

Gemini 3.8 Flash: Raccoon SVG benchmark
Researcher observations

Expressive animals, a bold diagonal hull and sweeping spray create an appealing action scene. The raccoon's support on the dog's back is unclear, and the dog lacks a readable paw-to-control grip and connected steering assembly. Clean graphic shapes and lively accessories are stronger than the anatomical construction. Sunset illumination and reflections remain largely 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 Sol78.0/100

GPT 6 Sol: Raccoon SVG benchmark
Researcher observations

The raccoon rides the dog's back, and the dog's connected foreleg reaches the steering grip. Expressive faces, a cohesive palette and sweeping wake make an appealing illustration. Vehicle construction and seating remain simplified; broad splash ribbons convey speed more convincingly than physical displacement. The sun has little corresponding reflection or effect on the subjects.

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
CategoryGemini 3.8 FlashGPT 6 Sol
Prompt & likeness7.0/108.5/10
Anatomy & construction5.5/107.5/10
Space & placement7.0/108.0/10
Light & reflections6.5/106.0/10
Purposeful detail7.5/108.0/10
Artistry & character8.0/108.0/10
Materials & effects7.5/107.5/10
Visual integrity8.0/108.5/10

Pelican

Benchmax control

Outside General and Visual Intelligence.

Gemini 3.8 Flash76.3/100

Gemini 3.8 Flash: Pelican SVG benchmark
Researcher observations

The pelican’s enormous bill, lively feathers and orange bicycle create a clear, appealing composition. Basket contents, spokes and facial details reward inspection. Both legs connect to the body, but foot-to-pedal placement and wing-to-handlebar contact are ambiguous. Bicycle mechanics and lighting remain schematic, limiting an otherwise polished illustration.

Exact prompt

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

GPT 6 Sol80.3/100

GPT 6 Sol: Pelican SVG benchmark
Researcher observations

The pelican reads clearly, with an expressive face, generous bill and appealing pastel composition. Spokes, basket weave and feather contours are carefully organized. Both legs connect to the body, though joint definition and pedal contacts are simplified. Consistent wheel placement and a ground shadow establish support; restrained shading gives limited volume.

Exact prompt

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

Compare category scores
CategoryGemini 3.8 FlashGPT 6 Sol
Prompt & likeness9.0/109.0/10
Anatomy & construction6.5/107.5/10
Space & placement7.5/108.0/10
Light & reflections7.0/107.0/10
Purposeful detail8.0/108.0/10
Artistry & character8.0/108.5/10
Materials & effects7.0/107.0/10
Visual integrity8.0/108.5/10