Iceman Contributor 3.2/100Rank 47/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗LongCat-2.0 leads Iceman Contributor by 6.3 points on StealthMark, 25.5 to 19.2. It leads on 5 of the 7 benchmarks with results for both and Iceman Contributor on 2. Owl Alpha 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
LongCat-2.0 scores higher on StealthMark and runs 1.9× faster in our speed test.
Full datasheets, every price and sourceLongCat-2.0 ↗
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 ↗


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.
LongCat-2.0
Cyan lies on the sphere's facing middle rather than showing its recent interaction near the apex. Separate airborne black and elongated crimson support part of the timing sequence. Small side images and an overlapping lower image provide limited reflection ordering, but recursive room structure, nested imagery and emitter mappings are largely absent. The main sphere is smaller and higher in the frame than prescribed, and the surfaces have a soft, matte appearance.
| Category | Iceman Contributor | LongCat-2.0 |
|---|---|---|
| State at 600 ms | 0.5/25 | 9.5/25 |
| Camera and placement | 2.5/15 | 6.5/15 |
| Reflections | 7.5/120 | 12.5/120 |
| Materials and scale | 3.0/10 | 5.5/10 |
| 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.


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.
LongCat-2.0
Amber slit eyes, a pointed beak, cream feathers and gold-trimmed black clothing establish the secretive owl rogue. The head appears frontal rather than lowered, with much of the face exposed. The centered silhouette is effective, but stiff cloak geometry, shallow facial modeling and extremely dark clothing limit depth and finish. Sparse gold markings suggest the requested circuitry only loosely.
| Category | Iceman Contributor | LongCat-2.0 |
|---|---|---|
| Task & likeness | 4.0/10 | 7.0/10 |
| Anatomy & construction | 3.0/10 | 6.0/10 |
| Space & placement | 4.0/10 | 6.0/10 |
| Light & reflections | 4.5/10 | 5.5/10 |
| Purposeful detail | 4.0/10 | 6.0/10 |
| Artistry & character | 4.5/10 | 6.5/10 |
| Materials & effects | 4.5/10 | 5.5/10 |
| Visual integrity | 4.0/10 | 6.5/10 |
Iceman Contributor
Character scenes test expression, anatomy, materials and coherent visual construction.
LongCat-2.0
A cloaked owl with luminous eyes tests expression, fabric folds and the separation of dark forms.
Precise visual recall and portrait reconstruction.


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.
LongCat-2.0
The centered portrait, slight smile, overlapping hands and distant landscape suggest Mona Lisa, but replication is weak. The face has little volume, the shoulders and torso form a narrow wedge, and the hands are fingerless ovals with unresolved wrists. Broad gray background bands provide limited depth. A bright head rim and pale hands contrast with an almost featureless dark figure.
| Category | Iceman Contributor | LongCat-2.0 |
|---|---|---|
| Task & likeness | 1.5/10 | 0.5/10 |
| Anatomy & construction | 1.5/10 | 0.5/10 |
| Space & placement | 2.5/10 | 0.5/10 |
| Light & reflections | 2.0/10 | 0.5/10 |
| Purposeful detail | 2.0/10 | 0.0/10 |
| Artistry & character | 2.0/10 | 0.5/10 |
| Materials & effects | 2.0/10 | 0.0/10 |
| Visual integrity | 3.0/10 | 0.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


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.
LongCat-2.0
The sunset, palms, birds and beach animals create a cheerful, readable scene. Clean silhouettes and a vivid sky establish the composition, but construction remains schematic. The right palm appears rooted in open water, shadows have limited connection to the sunset, and the sun’s reflection consists of rigid bands. Small creatures and beach equipment are recognizable but minimally developed.
| Category | Iceman Contributor | LongCat-2.0 |
|---|---|---|
| Task & likeness | 7.0/10 | 7.5/10 |
| Anatomy & construction | 3.5/10 | 5.5/10 |
| Space & placement | 6.0/10 | 5.5/10 |
| Light & reflections | 4.0/10 | 6.0/10 |
| Purposeful detail | 5.5/10 | 5.0/10 |
| Artistry & character | 3.5/10 | 5.0/10 |
| Materials & effects | 4.5/10 | 3.0/10 |
| Visual integrity | 5.0/10 | 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.


Iceman Contributor
This benchmark has not been assessed yet.
LongCat-2.0
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.


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.
LongCat-2.0
The raccoon is recognizable and expressive, with a clear mask and striped tail. The dog's anatomy is poorly resolved, and the flattened craft lacks convincing steering and seating. Feet extend below the hull, weakening the sense of support. An appealing palette, clean shapes and decorative water effects give the illustration some polish.
| Category | Iceman Contributor | LongCat-2.0 |
|---|---|---|
| Task & likeness | 2.0/10 | 4.0/10 |
| Anatomy & construction | 3.0/10 | 3.0/10 |
| Space & placement | 3.0/10 | 4.5/10 |
| Light & reflections | 4.0/10 | 5.5/10 |
| Purposeful detail | 3.5/10 | 6.0/10 |
| Artistry & character | 2.5/10 | 3.0/10 |
| Materials & effects | 4.0/10 | 5.5/10 |
| Visual integrity | 2.5/10 | 5.0/10 |
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.


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.
LongCat-2.0
A clearly recognizable pelican cycles through a well-composed coastal sunset. Warm colors, flowing scarf, feather contours and bicycle details give the illustration character. The legs connect to the body, but the farther foot's pedal contact and the wing's handlebar grip remain ambiguous. Clean vector shapes provide polish, with limited material texture and directional shading.
| Category | Iceman Contributor | LongCat-2.0 |
|---|---|---|
| Task & likeness | 4.0/10 | 8.5/10 |
| Anatomy & construction | 3.5/10 | 7.0/10 |
| Space & placement | 3.5/10 | 8.0/10 |
| Light & reflections | 5.0/10 | 7.5/10 |
| Purposeful detail | 4.5/10 | 8.0/10 |
| Artistry & character | 3.5/10 | 8.5/10 |
| Materials & effects | 4.0/10 | 7.0/10 |
| Visual integrity | 3.0/10 | 8.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.