STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Crouton Alpha vs Kolibri-1

Crouton Alpha leads Kolibri-1 by 34.4 points on StealthMark, 48.0 to 13.6. It leads on all 7 benchmarks with results for both. 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
13.6/100Overall rank 55/56

General Intelligence

43.5/100
12.3/100

Visual Intelligence

56.0/100
15.0/100

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

  • Kolibri-1Multi-step reasoning not measured

Open or local

Local modelOpen model · Apache-2.0

BENCHMARK BY BENCHMARK

Where each model leads

  • Crouton Alpha
  • Kolibri-1
  • Other models
  • Median

DATASHEET

Specs and pricing

  • Crouton Alpha
  • Kolibri-1
  • Other models
  • Median
Context windowTokens per request, max output below
Crouton Alpha: Not publishedKolibri-1: 1M
Output speedTokens per second, our measurement
Crouton Alpha: 175Tiedtokens/sKolibri-1: 166Tiedtokens/s
SizeTotal and active parameters
Crouton Alpha: Not disclosedKolibri-1: 78.1B3.46B active
Developer
Not publishedAleph Alpha
Released
Not published3 Oct 2026
Origin
Not publishedGermany
Input → output
Not publishedText → text
Architecture
Not publishedMixture-of-Experts with 4:1 sliding-window-attention to global-attention pattern

Full datasheets, every price and sourceKolibri-1 ↗

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

Points per level

LevelCrouton AlphaKolibri-1
Level 1Second Thoughts
3 ptsOut of lives
No run
Level 2Pressure Pot
7 ptsOut of lives
No run
Level 3Hide or Flight
9 ptsSurvived
No run

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

Points per level

LevelCrouton AlphaKolibri-1
Level 1Hold the door
5.2 ptsCleared
No run
Level 2Crossfeed
9.4 ptsCleared
No run
Level 3Relay vault
11.2 ptsFinished early
No run
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
No run
Level 5Second thoughts
20.2 ptsCleared
No run

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.

Kolibri-1

A segmented gray perimeter surrounds a black field containing one large, low-positioned gray sphere and two small colored circles. Rounded volume and restrained paint scale earn partial material credit. The image does not demonstrate the required optical structure, while paint history, airborne black and settled support remain largely unresolved.

Score breakdown

CategoryCrouton AlphaKolibri-1
State at 600 ms19.0/259.5/25
Camera and placement11.0/151.5/15
Reflections21.5/1200.0/120
Materials and scale6.0/103.0/10
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.

Kolibri-1

A restrained ivory, teal and green palette gives the image simple graphic coherence. Execution remains rudimentary: detached oval wings, ambiguous central anatomy and unclear feeding contact prevent a convincing hummingbird scene. The requested feather structure, botanical detail, lighting and enclosing arch are largely unresolved.

Score breakdown

CategoryCrouton AlphaKolibri-1
Task & likeness6.5/102.5/10
Anatomy & construction5.5/102.0/10
Space & placement6.5/103.0/10
Light & reflections5.5/102.0/10
Purposeful detail7.0/101.5/10
Artistry & character5.0/101.5/10
Materials & effects5.5/102.0/10
Visual integrity7.5/105.5/10

Benchmark task

Crouton Alpha

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

Kolibri-1

A jewel-coloured hummingbird hovering in flight tests avian anatomy, delicate structure and iridescent surface detail.

Mona Lisa

Different 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.

Kolibri-1

The candidate offers a clean, highly simplified frontal portrait with warm skin and dark hair. Its oversized oval face, schematic features and unresolved body provide little Mona Lisa likeness. Missing crossed hands, clothing detail and landscape remove essential parts of the original composition; smooth gradients supply only limited volume.

Score breakdown

CategoryCrouton AlphaKolibri-1
Task & likeness4.5/100.5/10
Anatomy & construction4.0/100.5/10
Space & placement4.5/100.0/10
Light & reflections5.0/100.0/10
Purposeful detail4.0/100.0/10
Artistry & character4.5/100.5/10
Materials & effects4.0/100.5/10
Visual integrity6.0/100.5/10

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.

Kolibri-1

A recognizable sunset beach has an appealing purple-orange gradient and clean geometric edges. Birds and animals remain unresolved, terrain obscures the relationship between shore and water, and reflections are absent. Sparse detail, flat materials and limited activity keep the drawing elementary despite its tidy rendering.

Score breakdown

CategoryCrouton AlphaKolibri-1
Task & likeness8.5/102.5/10
Anatomy & construction5.0/100.5/10
Space & placement5.5/103.0/10
Light & reflections5.5/101.0/10
Purposeful detail7.0/100.5/10
Artistry & character5.0/101.0/10
Materials & effects5.5/100.5/10
Visual integrity7.0/103.0/10

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.

Kolibri-1

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.

Kolibri-1

Clean shapes and a readable coral platform provide basic graphic clarity, but the animal construction remains fragmented. A recognizable raccoon riding the dog's back, connected steering and convincing water contact are not demonstrated. Sparse detail, flat subjects and absent movement effects support retaining the baseline category assessments.

Score breakdown

CategoryCrouton AlphaKolibri-1
Task & likeness7.0/101.5/10
Anatomy & construction5.0/101.0/10
Space & placement6.0/101.0/10
Light & reflections6.0/100.0/10
Purposeful detail6.5/100.5/10
Artistry & character5.0/100.5/10
Materials & effects5.5/100.5/10
Visual integrity6.0/103.5/10

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.

Kolibri-1

Clean shapes and aligned wheels establish a readable schematic scene. Pelican likeness, riding support and bicycle mechanics remain substantially unresolved. Sparse detail and flat surfaces limit expression and volume. Strong edge and fill integrity is a separate success and does not repair the construction.

Score breakdown

CategoryCrouton AlphaKolibri-1
Task & likeness7.0/101.5/10
Anatomy & construction5.0/101.5/10
Space & placement5.5/101.5/10
Light & reflections5.5/103.0/10
Purposeful detail6.5/101.5/10
Artistry & character5.5/101.0/10
Materials & effects5.0/101.0/10
Visual integrity6.0/103.5/10

Benchmark task

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