STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Crouton Alpha vs GPT-6 Luna

Crouton Alpha leads GPT-6 Luna by 8.9 points on StealthMark, 48.0 to 39.1. It leads on 6 of 9 benchmarks, including both games, and GPT-6 Luna on 3. Crouton Alpha scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
Model guide ↗
All results ↗

Overall StealthMark

48.0/100Overall rank 23/56
39.1/100Overall rank 38/56

General Intelligence

43.5/100
31.3/100

Visual Intelligence

56.0/100
52.0/100

Reasoning efficiency

How many reasoning tokens a model needs for the quality it delivers.

Single-step reasoning How much it reasons to understand a task

Multi-step reasoning How much it keeps reasoning as a task goes on

Cost efficiency

How much Performance you get for your money.

  • Crouton AlphaNot measured

Open or local

BENCHMARK BY BENCHMARK

Where each model leads

  • Crouton Alpha
  • GPT-6 Luna
  • Other models
  • Median

DATASHEET

Specs and pricing

Crouton Alpha scores higher on StealthMark and runs 33% faster in our speed test.

  • Crouton Alpha
  • GPT-6 Luna
  • Other models
  • Median
PricePer 1M output tokens, input below
Crouton Alpha: No list priceGPT-6 Luna: $0.50$0.10 input
Context windowTokens per request, max output below
Crouton Alpha: Not publishedGPT-6 Luna: 1.05M128K max output
Output speedTokens per second, our measurement
Crouton Alpha: 17533% fastertokens/sGPT-6 Luna: 131tokens/s
Developer
Not publishedOpenAI
Released
Not published22 Sep 2026
Origin
Not publishedUnited States
Input → output
Not publishedText, image → text

Full datasheets, every price and sourceGPT-6 Luna ↗

Anticipating threats and planning ahead. Collect coins while avoiding ghosts. Ghosts move before the player each turn, and collisions cost a life. 3 levels in sequence, up to 66 turns in total. Earlier moves and outcomes carry forward, testing learning across levels.

Crouton Alpha 32.3/100Rank 29/52

Survived 1 of 3
Foresight: complete playing field
Level 39 ptsTurn 20 / 20

GPT-6 Luna 29.8/100Rank 35/52

Survived 0 of 3
Foresight: complete playing field
Level 36 ptsTurn 7 / 20

Points per level

LevelCrouton AlphaGPT-6 Luna
Level 1Second Thoughts
3 ptsOut of lives
15 ptsOut of lives
Level 2Pressure Pot
7 ptsOut of lives
5 ptsOut of lives
Level 3Hide or Flight
9 ptsSurvived
6 ptsOut of lives

Cooperative planning and learning from experience. Coordinate two robots to push numbered cores onto matching sockets. Pressure plates hold doors open; moving either robot uses one turn. 5 levels in sequence, up to 152 turns in total. Earlier moves and outcomes carry forward, testing learning across levels.

Crouton Alpha 59.5/100Rank 24/53

Cleared 4 of 5
Latch: complete playing field
Level 520.2 ptsTurn 29 / 40

GPT-6 Luna 44.0/100Rank 29/53

Cleared 4 of 5
Latch: complete playing field
Level 513 ptsTurn 15 / 40

Points per level

LevelCrouton AlphaGPT-6 Luna
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.4 ptsCleared
8.8 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
11.2 ptsFinished early
17 ptsCleared1 beacon left
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
15.8 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
20.2 ptsCleared
13 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

Crouton Alpha

The artwork establishes approximate central placement, a separate airborne black blob, and basic wall and floor sphere images. Its defining weaknesses are the largely absent recursive reflection system, missing emitter mappings, satin steel appearance and unresolved paint interaction. The black lateral wedges do not establish a separate viewport, and the hidden floor contact does not establish a gap. The category values remain unchanged.

GPT-6 Luna

The schematic scene supports the paint contact order and compact paint scale. Its low, undersized main sphere and incorrectly placed wall images depart from the reference geometry. A few shrinking wall images provide limited optical organization, while absent lateral recursion and outer chains, broad sphere ribbons and isolated panel highlights leave most nested room and emitter mapping undeveloped.

Score breakdown

CategoryCrouton AlphaGPT-6 Luna
State at 600 ms19.0/2522.0/25
Camera and placement11.0/153.5/15
Reflections21.5/1205.0/120
Materials and scale6.0/107.0/10
Floor-damage reward0.0/100.0/10

Benchmark task

A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.

Selfie

Different task instructions

Visual construction and creative interpretation.

The judgment

Crouton Alpha

A cheerful, readable cartoon captures the crouton's signature expression and many specific accessories. Coherent cube geometry and foreground foreshortening support the selfie. Simple construction and flat material treatment limit its sophistication, while the tipping raft, advancing soup and unnoticed soaking remain insufficiently clear.

GPT-6 Luna

Sixfold symmetry, pale coloring and six outward-facing heads establish the motif. However, every neck floats clear of the knot. Squared outer sections replace the required semicircular lobes, and the large stepped opening lacks a regular hexagonal contour. Repeated scales and soft shading suggest skin, but translucent crossings and doubled edges weaken the living, interwoven construction.

Score breakdown

CategoryCrouton AlphaGPT-6 Luna
Task & likeness6.5/104.5/10
Anatomy & construction5.5/103.5/10
Space & placement6.5/105.5/10
Light & reflections5.5/105.0/10
Purposeful detail7.0/105.0/10
Artistry & character5.0/105.0/10
Materials & effects5.5/105.0/10
Visual integrity7.5/104.5/10

Benchmark task

Crouton Alpha

Character scenes test expression, anatomy, materials and coherent visual construction.

GPT-6 Luna

A pale serpent woven into an interlocking knot tests connected anatomy, repeated structure and readable overlaps. Organic surface detail must work with the overall geometry.

Mona Lisa

Same task instructions

Precise visual recall and portrait reconstruction.

The judgment

Crouton Alpha

A recognizable, coherent simplification with readable eyes, a restrained smile and modest facial volume. Frontal symmetry, an oversized head, capsule-like hands and geometric scenery substantially limit likeness, anatomy and depth. Clean contours preserve basic integrity but do not establish sophisticated construction or finish.

GPT-6 Luna

The dark veil, crossed arms, restrained smile and layered landscape clearly evoke Mona Lisa. Clean contours and muted colors create a coherent illustration. Replication is limited by enlarged, outlined eyes, simplified facial volume, broad shoulders and indistinct overlapping hands. Gradients suggest depth, but lack the original's subtle painterly transitions.

Score breakdown

CategoryCrouton AlphaGPT-6 Luna
Task & likeness4.5/104.5/10
Anatomy & construction4.0/104.0/10
Space & placement4.5/105.5/10
Light & reflections5.0/105.0/10
Purposeful detail4.0/105.0/10
Artistry & character4.5/104.5/10
Materials & effects4.0/105.0/10
Visual integrity6.0/106.0/10

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

Beach

Same task instructions

Creativity, perspective and visual beauty.

The judgment

Crouton Alpha

A colorful, readable sunset beach scene with playful subjects and a clear central reflection. Purposeful equipment and animal details reward inspection, and the principal attachments remain intact. Basic geometric anatomy, mixed viewpoints and sparse directional shadows limit its construction and depth; smooth gradients provide atmosphere with little material differentiation.

GPT-6 Luna

The warm sky, layered sea and framing palms create an appealing beach composition. Animals, birds, toys and reflected sunlight fulfill the brief. Human anatomy remains schematic, and simplified figures offer limited expression. Missing shadows and the dolphin's splashless jump weaken physical grounding, while clean silhouettes and readable small details support the illustration.

Score breakdown

CategoryCrouton AlphaGPT-6 Luna
Task & likeness8.5/107.5/10
Anatomy & construction5.0/105.0/10
Space & placement5.5/107.5/10
Light & reflections5.5/105.0/10
Purposeful detail7.0/107.0/10
Artistry & character5.0/105.0/10
Materials & effects5.5/106.5/10
Visual integrity7.0/106.0/10

Benchmark task

A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.

Ground Truth

Same task instructions

Physical reasoning, light and visual reconstruction.

The judgment

Crouton Alpha

This benchmark has not been assessed yet.

GPT-6 Luna

This benchmark has not been assessed yet.

Benchmark task

A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.

Raccoon

Same task instructions

Scene composition and interacting subjects.

The judgment

Crouton Alpha

A readable cartoon with expressive faces, purposeful markings and clear water motion. Hull shading and an underside shadow establish modest depth. The dog contacts the controls, but the raccoon's frontal pose leaves its seated weight unresolved. Simple anatomy and limited shared perspective constrain the drawing.

GPT-6 Luna

Expressive faces, warm sunset colors and clean silhouettes create an appealing illustration. The raccoon sits on the dog's back, but the dog's grip and steering linkage remain unclear. The broad hull resembles a speedboat, and flat shading, absent sun reflections and modest water displacement limit depth and motion.

Score breakdown

CategoryCrouton AlphaGPT-6 Luna
Task & likeness7.0/108.0/10
Anatomy & construction5.0/105.5/10
Space & placement6.0/107.5/10
Light & reflections6.0/106.0/10
Purposeful detail6.5/107.0/10
Artistry & character5.0/105.5/10
Materials & effects5.5/106.5/10
Visual integrity6.0/105.0/10

Benchmark task

A jet-ski scene pairs a canine driver with a raccoon passenger. It tests the placement and contact of interacting subjects, along with vehicle construction.

Pelican

Same task instructions

Subject construction and spatial relationships.

The judgment

Crouton Alpha

A recognizable, expressive pelican cyclist with purposeful feather and bicycle detail. Readable steering reach, connected machinery and modest body shading earn additional credit. Jointless legs, uncertain pedal engagement and unclear seated support keep the central action only partially resolved; shallow space and simple materials further limit the illustration.

GPT-6 Luna

The pelican’s distinctive bill and the coordinated vintage poster palette make an appealing illustration. Circular wheels, orderly spokes and clean lettering strengthen the design. Riding mechanics are less convincing: neither wing reaches the handlebars, pedal contact is ambiguous, and the drivetrain is incomplete. The wheels sit against water without a clear supporting surface. Flat lighting limits volume.

Score breakdown

CategoryCrouton AlphaGPT-6 Luna
Task & likeness7.0/108.0/10
Anatomy & construction5.0/105.0/10
Space & placement5.5/106.5/10
Light & reflections5.5/106.5/10
Purposeful detail6.5/107.5/10
Artistry & character5.5/106.5/10
Materials & effects5.0/106.5/10
Visual integrity6.0/107.0/10

Benchmark task

A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.