STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Crouton Alpha vs GPT-5.6 Terra

Crouton Alpha leads GPT-5.6 Terra by 2.2 points on StealthMark, 48.0 to 45.8. It leads on 5 of 9 benchmarks, including Foresight, and GPT-5.6 Terra on 4, including Latch. 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
45.8/100Overall rank 29/56

General Intelligence

43.5/100
41.9/100

Visual Intelligence

56.0/100
52.7/100

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

  • GPT-5.6 Terra

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-5.6 Terra
  • Other models
  • Median

DATASHEET

Specs and pricing

Crouton Alpha scores higher on StealthMark and runs 1.7× faster in our speed test.

  • Crouton Alpha
  • GPT-5.6 Terra
  • Other models
  • Median
PricePer 1M output tokens, input below
Crouton Alpha: No list priceGPT-5.6 Terra: $12$2 input
Context windowTokens per request, max output below
Crouton Alpha: Not publishedGPT-5.6 Terra: 1.05M128K max output
Output speedTokens per second, our measurement
Crouton Alpha: 1751.7× fastertokens/sGPT-5.6 Terra: 102tokens/s
Developer
Not publishedOpenAI
Released
Not published9 Jul 2026
Origin
Not publishedUnited States
Input → output
Not publishedText, image → text

Full datasheets, every price and sourceGPT-5.6 Terra ↗

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-5.6 Terra 30.1/100Rank 34/52

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

Points per level

LevelCrouton AlphaGPT-5.6 Terra
Level 1Second Thoughts
3 ptsOut of lives
5 ptsOut of lives
Level 2Pressure Pot
7 ptsOut of lives
9 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-5.6 Terra 80.0/100Rank 10/53

Cleared 5 of 5
Latch: complete playing field
Level 520.6 ptsTurn 27 / 40

Points per level

LevelCrouton AlphaGPT-5.6 Terra
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.4 ptsCleared
9.6 ptsCleared
Level 3Relay vault
11.2 ptsFinished early
19.2 ptsCleared
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
18.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
20.2 ptsCleared
20.6 ptsCleared

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-5.6 Terra

The real sphere and airborne black blob are substantially too low in the complete frame after accounting for aspect ratio. The first wall and floor reflections have incompatible placement, relative size or silhouette. Both lateral regions lack the references' receding lane-and-chain organization. The few recognizable mirror images provide limited optical structure. The main, side and floor spheres replace nested mirror imagery with smooth bands, while sparse planar light patches and broad spherical highlights fail to establish coherent repeated emitter mapping.

Score breakdown

CategoryCrouton AlphaGPT-5.6 Terra
State at 600 ms19.0/2524.0/25
Camera and placement11.0/156.0/15
Reflections21.5/1207.0/120
Materials and scale6.0/105.5/10
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-5.6 Terra

Six ivory heads and rounded lobes create a striking radial emblem around a clear hexagonal opening. Soft shading gives the bodies volume, but abrupt rectangular and diagonal band endings make the continuous alternating weave ambiguous. Repetitive scale lines and simplified faces convey an ornamental serpent more convincingly than living anatomy.

Score breakdown

CategoryCrouton AlphaGPT-5.6 Terra
Task & likeness6.5/107.5/10
Anatomy & construction5.5/105.5/10
Space & placement6.5/107.0/10
Light & reflections5.5/107.5/10
Purposeful detail7.0/106.5/10
Artistry & character5.0/105.5/10
Materials & effects5.5/106.5/10
Visual integrity7.5/105.0/10

Benchmark task

Crouton Alpha

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

GPT-5.6 Terra

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-5.6 Terra

The dark clothing, central portrait and restrained smile evoke the Mona Lisa, but replication is limited by the broad face, elongated neck, nearly frontal pose and indistinct landscape. Soft gradients give the face some volume. Crossed arms become rounded masses without readable fingers or wrists, and the expression lacks the original's subtlety. Clean framing and curves support an otherwise basic, uneven portrait.

Score breakdown

CategoryCrouton AlphaGPT-5.6 Terra
Task & likeness4.5/104.0/10
Anatomy & construction4.0/103.0/10
Space & placement4.5/104.5/10
Light & reflections5.0/105.0/10
Purposeful detail4.0/104.0/10
Artistry & character4.5/104.0/10
Materials & effects4.0/104.0/10
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-5.6 Terra

Warm sunset gradients, framing palms and colorful beach activities create an appealing scene. Animals, birds and a sun reflection fulfill the brief. The dog and turtle remain schematic, foreground depth is shallow, and the reflection forms rigid bands. Clean silhouettes and readable accessories support a competent illustration, but limited anatomy, material variation and lighting keep it below exceptional.

Score breakdown

CategoryCrouton AlphaGPT-5.6 Terra
Task & likeness8.5/107.5/10
Anatomy & construction5.0/105.0/10
Space & placement5.5/106.0/10
Light & reflections5.5/105.0/10
Purposeful detail7.0/106.5/10
Artistry & character5.0/105.0/10
Materials & effects5.5/105.5/10
Visual integrity7.0/105.0/10

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-5.6 Terra

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-5.6 Terra

Expressive faces, a recognizable raccoon perched on the dog, and a sweeping wake make an appealing cartoon. The principal weakness is the steering interaction: the dog's paw sits beside the control assembly without a convincing handlebar grip. Bold outlines and coherent layering provide polish, while simplified shading, compressed seating geometry and angular splashes limit depth and physical credibility.

Score breakdown

CategoryCrouton AlphaGPT-5.6 Terra
Task & likeness7.0/107.5/10
Anatomy & construction5.0/105.0/10
Space & placement6.0/107.0/10
Light & reflections6.0/106.0/10
Purposeful detail6.5/107.0/10
Artistry & character5.0/105.0/10
Materials & effects5.5/107.0/10
Visual integrity6.0/107.5/10

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-5.6 Terra

The oversized bill, expressive eye and balanced twilight palette make the cyclist immediately readable. Clean contours and wheel details support the illustration, but the rabbit-like head tufts weaken pelican likeness. The wing does not clearly grip the handlebar, pedal contact is uneven, and the drivetrain is incomplete. Lighting remains mostly decorative.

Score breakdown

CategoryCrouton AlphaGPT-5.6 Terra
Task & likeness7.0/106.0/10
Anatomy & construction5.0/106.0/10
Space & placement5.5/107.0/10
Light & reflections5.5/106.5/10
Purposeful detail6.5/107.0/10
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.