Cat Jam Free 33.8/100Rank 26/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Fledge Alpha leads Cat Jam Free by 2.3 points on StealthMark, 35.8 to 33.5. It leads on 4 of the 7 benchmarks with results for both and Cat Jam Free on 3. Fledge Alpha scores higher on Raccoon, with its largest category advantage in prompt & likeness.
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.
Fledge Alpha
The candidate communicates a round metallic sphere, three paint colors and a separate airborne black blob. Its hovering support relationship, displaced framing and unresolved paint interaction limit physical credit. Sparse planar light ghosts and a soft sphere highlight provide little evidence for the required wall/floor repetitions and curved nested mirror imagery.
| Category | Cat Jam Free | Fledge Alpha |
|---|---|---|
| State at 600 ms | 14.0/25 | 9.0/25 |
| Camera and placement | 4.0/15 | 5.0/15 |
| Reflections | 3.5/120 | 7.5/120 |
| Materials and scale | 4.0/10 | 3.5/10 |
| 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.
Fledge Alpha
A coherent, appealing mascot with expressive eyes, a cheerful beak and a readable swept-back silhouette. Its larger forward foot and trailing feathers suggest a running stride, but the upright body, stiff legs and minimally articulated feet limit convincing motion. Clean flat shapes suit the brief, while uneven feather junctions and incomplete cream accents reduce polish.
| Category | Cat Jam Free | Fledge Alpha |
|---|---|---|
| Task & likeness | 5.5/10 | 7.5/10 |
| Anatomy & construction | 5.5/10 | 6.5/10 |
| Space & placement | 6.0/10 | 7.0/10 |
| Light & reflections | 6.0/10 | 5.5/10 |
| Purposeful detail | 4.0/10 | 6.5/10 |
| Artistry & character | 5.5/10 | 4.0/10 |
| Materials & effects | 5.0/10 | 6.0/10 |
| Visual integrity | 6.5/10 | 6.5/10 |
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.
Fledge Alpha
An eager young seabird running toward the viewer tests expressive anatomy, balance and a convincing forward-moving pose.
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.
Fledge Alpha
A recognizable but basic Mona Lisa reinterpretation with a coherent silhouette and subdued palette. Curtain-like hair obscures much of the face, while elongated facial construction and oversized, minimally articulated hands substantially weaken replication. Soft shading supplies modest volume, but anatomy, landscape depth and purposeful detail remain underdeveloped.
| Category | Cat Jam Free | Fledge Alpha |
|---|---|---|
| Task & likeness | 2.5/10 | 3.0/10 |
| Anatomy & construction | 2.0/10 | 3.0/10 |
| Space & placement | 4.0/10 | 2.5/10 |
| Light & reflections | 3.5/10 | 2.5/10 |
| Purposeful detail | 3.0/10 | 3.0/10 |
| Artistry & character | 3.0/10 | 3.0/10 |
| Materials & effects | 2.5/10 | 2.5/10 |
| Visual integrity | 5.5/10 | 2.5/10 |
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.
Fledge Alpha
A cheerful, recognizable sunset beach with a cohesive warm palette and clear accessories. Simple construction, uncertain palm support, an ambiguous upper boundary and schematic reflections limit depth and finish. The scene communicates its subject successfully but lacks the developed forms, lighting and detail of exceptional illustration.
| Category | Cat Jam Free | Fledge Alpha |
|---|---|---|
| Task & likeness | 7.0/10 | 7.5/10 |
| Anatomy & construction | 4.5/10 | 4.0/10 |
| Space & placement | 4.5/10 | 5.5/10 |
| Light & reflections | 4.0/10 | 5.0/10 |
| Purposeful detail | 4.0/10 | 3.0/10 |
| Artistry & character | 4.5/10 | 3.0/10 |
| Materials & effects | 4.5/10 | 2.5/10 |
| Visual integrity | 5.5/10 | 4.0/10 |
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.
Fledge Alpha
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.
Fledge Alpha
An appealing sunset illustration with recognizable characters and a clear riding action. Color, expression and silhouette are stronger than anatomical construction: overlapping paws obscure support, the dog's steering limb is simplified, and the vehicle controls lack definition. The wake conveys movement, while lighting and water reflections remain decorative.
| Category | Cat Jam Free | Fledge Alpha |
|---|---|---|
| Task & likeness | 6.0/10 | 8.5/10 |
| Anatomy & construction | 5.0/10 | 5.5/10 |
| Space & placement | 5.0/10 | 7.5/10 |
| Light & reflections | 5.0/10 | 6.5/10 |
| Purposeful detail | 6.0/10 | 7.0/10 |
| Artistry & character | 5.0/10 | 5.5/10 |
| Materials & effects | 5.0/10 | 7.0/10 |
| Visual integrity | 4.5/10 | 4.5/10 |
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.
Fledge Alpha
A clear, cheerful illustration with a recognizable pelican, coherent bicycle silhouette and tidy composition. Simplified leg articulation, steering contact, mechanical detail and lighting keep it at a competent illustrative level.
| Category | Cat Jam Free | Fledge Alpha |
|---|---|---|
| Task & likeness | 7.0/10 | 8.0/10 |
| Anatomy & construction | 5.0/10 | 6.0/10 |
| Space & placement | 6.0/10 | 6.5/10 |
| Light & reflections | 5.0/10 | 4.5/10 |
| Purposeful detail | 5.5/10 | 5.5/10 |
| Artistry & character | 5.5/10 | 5.0/10 |
| Materials & effects | 6.5/10 | 5.5/10 |
| Visual integrity | 6.5/10 | 6.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.