Iceman Contributor 3.2/100Rank 47/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Iceman Contributor leads Nemotron 3 Ultra by 2.5 points on StealthMark, 19.2 to 16.7. It leads on 6 of 9 benchmarks and Nemotron 3 Ultra on 3, including both games. Iceman Contributor scores higher on Newton's Mirror, with its largest category advantage in reflections.
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
Iceman Contributor scores higher on StealthMark. Nemotron 3 Ultra runs 3× faster in our speed test.
Full datasheets, every price and sourceNemotron 3 Ultra ↗
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.
Nemotron 3 Ultra
The candidate establishes a separate airborne black blob and partial crimson overlap, but leaves the paint interaction history and settled support unresolved. Its main silhouette, black placement and lamp projection depart substantially from the required camera geometry. A few faint reflection hints provide little support for the extensive mirror system, while the compact paint volumes are visibly disproportionate.
| Category | Iceman Contributor | Nemotron 3 Ultra |
|---|---|---|
| State at 600 ms | 0.5/25 | 2.0/25 |
| Camera and placement | 2.5/15 | 3.5/15 |
| Reflections | 7.5/120 | 4.5/120 |
| Materials and scale | 3.0/10 | 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.


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.
Nemotron 3 Ultra
An endearing mechanical creature is clearly framed, with expressive amber eyes and readable segmented arms. The shell resembles layered green plates more than a deep coiled spiral. Detached-looking construction, absent working contacts and patchy rendering leave the central assembly action substantially unresolved.
| Category | Iceman Contributor | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.0/10 | 4.0/10 |
| Space & placement | 4.0/10 | 5.5/10 |
| Light & reflections | 4.5/10 | 5.0/10 |
| Purposeful detail | 4.0/10 | 4.0/10 |
| Artistry & character | 4.5/10 | 3.0/10 |
| Materials & effects | 4.5/10 | 4.0/10 |
| Visual integrity | 4.0/10 | 4.5/10 |
Iceman Contributor
Character scenes test expression, anatomy, materials and coherent visual construction.
Nemotron 3 Ultra
A hovering mechanical nautilus tests spiral construction, connected mechanical forms and contrasting metal and illuminated surfaces.
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.
Nemotron 3 Ultra
The centered silhouette provides basic organization, but multicolored mottling and geometric overlays leave the portrait unresolved. No readable face, crossed hands, clothing or landscape establishes Mona Lisa replication. Texture and transparency offer limited visual effects without coherent anatomy, lighting or material distinctions.
| Category | Iceman Contributor | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 1.5/10 | 0.5/10 |
| Anatomy & construction | 1.5/10 | 0.0/10 |
| Space & placement | 2.5/10 | 1.0/10 |
| Light & reflections | 2.0/10 | 0.5/10 |
| Purposeful detail | 2.0/10 | 0.5/10 |
| Artistry & character | 2.0/10 | 1.5/10 |
| 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.
Nemotron 3 Ultra
A recognizable beach illustration with appealing warm-cool contrast, readable layers and mostly clean shapes. Unresolved seat construction, schematic animals and broad geometric foliage give it an elementary finish. Weakly coordinated reflections and limited material differentiation further constrain depth and atmosphere.
| Category | Iceman Contributor | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 7.0/10 | 6.5/10 |
| Anatomy & construction | 3.5/10 | 3.0/10 |
| Space & placement | 6.0/10 | 5.0/10 |
| Light & reflections | 4.0/10 | 1.5/10 |
| Purposeful detail | 5.5/10 | 4.5/10 |
| Artistry & character | 3.5/10 | 3.0/10 |
| Materials & effects | 4.5/10 | 2.5/10 |
| Visual integrity | 5.0/10 | 6.5/10 |
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.
Nemotron 3 Ultra
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.
Nemotron 3 Ultra
The masked raccoon, dog and orange craft make the scene recognizable, with an appealing sunset palette. Overlapping bodies obscure the riding relationship, and the dog's connection to the controls remains unresolved. Weak water displacement, inconsistent shading and visible shape artifacts limit the finish. Ambiguous attachments do not establish detached limbs or inverted anatomy.
| Category | Iceman Contributor | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 2.0/10 | 3.5/10 |
| Anatomy & construction | 3.0/10 | 1.5/10 |
| Space & placement | 3.0/10 | 4.5/10 |
| Light & reflections | 4.0/10 | 2.0/10 |
| Purposeful detail | 3.5/10 | 3.5/10 |
| Artistry & character | 2.5/10 | 1.5/10 |
| Materials & effects | 4.0/10 | 3.0/10 |
| Visual integrity | 2.5/10 | 2.0/10 |
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.
Nemotron 3 Ultra
A recognizable, playful pelican dominates a readable bicycle scene. Its bill and silhouette succeed, but feet below the pedals and confused drivetrain connections weaken the riding action. Local material modeling adds interest; overlapping contours, repetitive detail and inconsistent shadows leave the illustration basic and uneven.
| Category | Iceman Contributor | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.5/10 | 3.5/10 |
| Space & placement | 3.5/10 | 3.5/10 |
| Light & reflections | 5.0/10 | 4.0/10 |
| Purposeful detail | 4.5/10 | 5.5/10 |
| Artistry & character | 3.5/10 | 4.0/10 |
| Materials & effects | 4.0/10 | 6.0/10 |
| Visual integrity | 3.0/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.