Cat Jam Free 33.8/100Rank 26/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Cat Jam Free leads Iceman Contributor by 14.3 points on StealthMark, 33.5 to 19.2. It leads on all 9 benchmarks. Cat Jam Free scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.
See the difference ↘On every task, result quality and reasoning tokens are each compared with all measured models and weighed equally. Each dot is one model.
BENCHMARK BY BENCHMARK
DATASHEET
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.


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.


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


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.
Iceman Contributor
The image provides limited evidence through rounded volume, faint wall strips and floor echoes. Its main sphere is small and low, the paint beads do not establish the required interaction history, and most of the defining mirror structure is missing.
| Category | Cat Jam Free | Iceman Contributor |
|---|---|---|
| State at 600 ms | 14.0/25 | 0.5/25 |
| Camera and placement | 4.0/15 | 2.5/15 |
| Reflections | 3.5/120 | 7.5/120 |
| Materials and scale | 4.0/10 | 3.0/10 |
| Floor-damage reward | 0.0/10 | 0.0/10 |
A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.
Visual construction and creative interpretation.


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.
Iceman Contributor
The crystal crown, cyan eyes and blue faceting communicate an icy fantasy character. Anatomical readability is substantially weaker: the ringed torso, crowded facial construction and fingerless appendages do not resolve the requested childlike crouch or pouncing gesture. Sparse surface detail and shallow shading further limit the result.
| Category | Cat Jam Free | Iceman Contributor |
|---|---|---|
| Task & likeness | 5.5/10 | 4.0/10 |
| Anatomy & construction | 5.5/10 | 3.0/10 |
| Space & placement | 6.0/10 | 4.0/10 |
| Light & reflections | 6.0/10 | 4.5/10 |
| Purposeful detail | 4.0/10 | 4.0/10 |
| Artistry & character | 5.5/10 | 4.5/10 |
| Materials & effects | 5.0/10 | 4.5/10 |
| Visual integrity | 6.5/10 | 4.0/10 |
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.
Iceman Contributor
Character scenes test expression, anatomy, materials and coherent visual construction.
Precise visual recall and portrait reconstruction.


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.
Iceman Contributor
The portrait retains a dark silhouette against an earthy landscape, but replication is weak. The frontal body, elongated facial proportions and undifferentiated hands lose the reference's defining pose and likeness. Basic gradients and layered hills provide some coherence, with little anatomical or painterly detail.
| Category | Cat Jam Free | Iceman Contributor |
|---|---|---|
| Task & likeness | 2.5/10 | 1.5/10 |
| Anatomy & construction | 2.0/10 | 1.5/10 |
| Space & placement | 4.0/10 | 2.5/10 |
| Light & reflections | 3.5/10 | 2.0/10 |
| Purposeful detail | 3.0/10 | 2.0/10 |
| Artistry & character | 3.0/10 | 2.0/10 |
| Materials & effects | 2.5/10 | 2.0/10 |
| Visual integrity | 5.5/10 | 3.0/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


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.
Iceman Contributor
A coherent sunset beach with recognizable animals, playful details and effective palm framing. Connected silhouettes and layered scenery support modest construction and placement credit. Jointless figures, limited foreshortening and an inadequately separated sun and reflection keep the execution basic despite its attractive color.
| Category | Cat Jam Free | Iceman Contributor |
|---|---|---|
| Task & likeness | 7.0/10 | 7.0/10 |
| Anatomy & construction | 4.5/10 | 3.5/10 |
| Space & placement | 4.5/10 | 6.0/10 |
| Light & reflections | 4.0/10 | 4.0/10 |
| Purposeful detail | 4.0/10 | 5.5/10 |
| Artistry & character | 4.5/10 | 3.5/10 |
| Materials & effects | 4.5/10 | 4.5/10 |
| Visual integrity | 5.5/10 | 5.0/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Cat Jam Free
This benchmark has not been assessed yet.
Iceman Contributor
This benchmark has not been assessed yet.
A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.
Scene composition and interacting subjects.


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.
Iceman Contributor
The sunset palette and red hull establish an appealing setting, but the central interaction remains unresolved. Overlapping bodies obscure the dog, supported seating is unclear, and no readable paw-to-control grip demonstrates steering. Simple construction, weak environmental lighting and loosely described spray limit depth and finish.
| Category | Cat Jam Free | Iceman Contributor |
|---|---|---|
| Task & likeness | 6.0/10 | 2.0/10 |
| Anatomy & construction | 5.0/10 | 3.0/10 |
| Space & placement | 5.0/10 | 3.0/10 |
| Light & reflections | 5.0/10 | 4.0/10 |
| Purposeful detail | 6.0/10 | 3.5/10 |
| Artistry & character | 5.0/10 | 2.5/10 |
| Materials & effects | 5.0/10 | 4.0/10 |
| Visual integrity | 4.5/10 | 2.5/10 |
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.
Subject construction and spatial relationships.


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.
Iceman Contributor
A recognizable pelican and bicycle sit within an appealing sunset composition. Feather contours, bill shape and atmospheric colour provide character, but disconnected-looking leg origins, unclear pedal contact and unresolved steering weaken the central riding action. Consistent wheel alignment establishes a side view without resolving the rider's support.
| Category | Cat Jam Free | Iceman Contributor |
|---|---|---|
| Task & likeness | 7.0/10 | 4.0/10 |
| Anatomy & construction | 5.0/10 | 3.5/10 |
| Space & placement | 6.0/10 | 3.5/10 |
| Light & reflections | 5.0/10 | 5.0/10 |
| Purposeful detail | 5.5/10 | 4.5/10 |
| Artistry & character | 5.5/10 | 3.5/10 |
| Materials & effects | 6.5/10 | 4.0/10 |
| Visual integrity | 6.5/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.