STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Cat Jam Free vs Kolibri-1

Cat Jam Free leads Kolibri-1 by 19.9 points on StealthMark, 33.5 to 13.6. It leads on all 7 benchmarks with results for both. Cat Jam Free scores higher on Raccoon, with its largest category advantage in anatomy & construction.

See the difference ↘
Model guide ↗
All results ↗

Overall StealthMark

33.5/100Overall rank 40/53
13.6/100Overall rank 52/53

General Intelligence

27.7/100
12.3/100

Visual Intelligence

43.0/100
15.0/100

Reasoning efficiency

On every task, result quality and reasoning tokens are each compared with all measured models and weighed equally. Each dot is one model.

Single-step reasoning Result quality weighed against reasoning tokens on a single problem

Multi-step reasoning Result quality weighed against reasoning tokens across connected steps, as in agentic workflows

  • Kolibri-1Multi-step reasoning not measured

Open or local

NeitherApache-2.0
Local modelOpen model · Apache-2.0

BENCHMARK BY BENCHMARK

Where each model leads

  • Cat Jam Free
  • Kolibri-1
  • Other models
  • Median

DATASHEET

Specs and pricing

  • Cat Jam Free
  • Kolibri-1
  • Other models
  • Median
Context windowTokens per request, max output below
Cat Jam Free: Not publishedKolibri-1: 1M
Output speedTokens per second, our measurement
Cat Jam Free: Not measuredKolibri-1: 166tokens/s
SizeTotal and active parameters
Cat Jam Free: 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.

Cat Jam Free 33.8/100Rank 26/47

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

Points per level

LevelCat Jam FreeKolibri-1
Level 1Second Thoughts
5 ptsOut of lives
No run
Level 2Pressure Pot
6 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.

Cat Jam Free 33.9/100Rank 33/48

Cleared 2 of 5
Latch: complete playing field
Level 56 ptsTurn 25 / 40

Points per level

LevelCat Jam FreeKolibri-1
Level 1Hold the door
5.2 ptsCleared
No run
Level 2Crossfeed
9.8 ptsCleared
No run
Level 3Relay vault
10 ptsFinished early
No run
Level 4Passing bay
10.8 ptsFinished early
No run
Level 5Second thoughts
6 ptsFinished early
No run

Newton's Mirror

Same task instructions

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

The judgment

Cat Jam Free

The image conveys a supported central sphere, separate black paint and crimson below cyan. Its contact and transport story is partially resolved. The exterior cutaway camera and largely missing mirror system dominate the limitations; isolated discs and smooth highlights provide little coherent optical structure.

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

CategoryCat Jam FreeKolibri-1
State at 600 ms14.0/259.5/25
Camera and placement4.0/151.5/15
Reflections3.5/1200.0/120
Materials and scale4.0/103.0/10
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

Cat Jam Free

A coherent, restrained cat illustration captures the pale palette and intent eyes. Its central expressive requirement—the committed forward-and-down neck bob—is insufficiently articulated. Simple geometry, faint paw construction and minimal surface detail limit the physical presence and finish.

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

CategoryCat Jam FreeKolibri-1
Task & likeness5.5/102.5/10
Anatomy & construction5.5/102.0/10
Space & placement6.0/103.0/10
Light & reflections6.0/102.0/10
Purposeful detail4.0/101.5/10
Artistry & character5.5/101.5/10
Materials & effects5.0/102.0/10
Visual integrity6.5/105.5/10

Benchmark task

Cat Jam Free

An ivory cat nods intently to music beside a tiny speaker. The scene tests feline anatomy, movement conveyed through a still pose and the contrast between pale fur and woven fabric.

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

Cat Jam Free

The portrait is recognizable and cleanly assembled, but replication remains basic. Its frontal symmetry, elongated silhouette, simplified facial likeness and unresolved hands differ markedly from the original. Modest skin gradients provide volume, while clothing and landscape rely on broad, flat shapes.

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

CategoryCat Jam FreeKolibri-1
Task & likeness2.5/100.5/10
Anatomy & construction2.0/100.5/10
Space & placement4.0/100.0/10
Light & reflections3.5/100.0/10
Purposeful detail3.0/100.0/10
Artistry & character3.0/100.5/10
Materials & effects2.5/100.5/10
Visual integrity5.5/100.5/10

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

Cat Jam Free

The scene clearly supplies the requested beach subjects and playful activity. Clean silhouettes and warm gradients support readability, but elementary drawing, ambiguous parasol construction, weak grounding and a rigid sun reflection limit its depth and finish.

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

CategoryCat Jam FreeKolibri-1
Task & likeness7.0/102.5/10
Anatomy & construction4.5/100.5/10
Space & placement4.5/103.0/10
Light & reflections4.0/101.0/10
Purposeful detail4.0/100.5/10
Artistry & character4.5/101.0/10
Materials & effects4.5/100.5/10
Visual integrity5.5/103.0/10

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

Cat Jam Free

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

Cat Jam Free

An appealing cartoon demonstrates the back-riding arrangement through expressive faces and clean shapes. Uncertain steering contact, indistinct deck support and weak hull-water interaction limit physical coherence. Smooth gradients add volume, but simple rounded construction and sparse material detail constrain complexity and finish.

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

CategoryCat Jam FreeKolibri-1
Task & likeness6.0/101.5/10
Anatomy & construction5.0/101.0/10
Space & placement5.0/101.0/10
Light & reflections5.0/100.0/10
Purposeful detail6.0/100.5/10
Artistry & character5.0/100.5/10
Materials & effects5.0/100.5/10
Visual integrity4.5/103.5/10

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

Cat Jam Free

A coherent cartoon with readable bicycle placement, controlled outlines and modest surface shading. The separated-looking upper bill weakens pelican likeness; schematic limbs, uncertain gripping contact and simplified mechanics constrain construction. Opaque wheel interiors flatten spatial relationships. Limited feather complexity and directional lighting keep the finish modest.

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

CategoryCat Jam FreeKolibri-1
Task & likeness7.0/101.5/10
Anatomy & construction5.0/101.5/10
Space & placement6.0/101.5/10
Light & reflections5.0/103.0/10
Purposeful detail5.5/101.5/10
Artistry & character5.5/101.0/10
Materials & effects6.5/101.0/10
Visual integrity6.5/103.5/10

Benchmark task

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