Gemma 4 31B 30.2/100Rank 30/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Gemma 4 31B leads Iceman Contributor by 6.6 points on StealthMark, 25.8 to 19.2. It leads on 5 of 9 benchmarks, including both games, and Iceman Contributor on 4. Gemma 4 31B 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
Gemma 4 31B scores higher on StealthMark and runs 2.5× faster in our speed test.
Full datasheets, every price and sourceGemma 4 31B ↗
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 ↗


Gemma 4 31B
The sphere's volume, separate airborne black blob and vertical color ordering are readable. The large, low sphere, plain surrounding planes and absent nested optical imagery leave the central geometric and reflection requirements unsupported. Paint contact and transport remain unresolved. Material credit recognizes the visible convex shading, highlights and distinct surface colors while retaining deductions for the schematic finish and oversized blobs.
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 | Gemma 4 31B | Iceman Contributor |
|---|---|---|
| State at 600 ms | 11.0/25 | 0.5/25 |
| Camera and placement | 3.0/15 | 2.5/15 |
| Reflections | 0.0/120 | 7.5/120 |
| Materials and scale | 5.5/10 | 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.


Gemma 4 31B
A clean, appealing luminous mascot with coherent body continuity and a readable jar-hugging pose. Rounded highlights, smooth gradients and balanced framing work well. The teardrop silhouette, modest eyes and nearly even grin only partly satisfy the character brief; sparse jar construction and simple geometry limit sophistication.
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 | Gemma 4 31B | Iceman Contributor |
|---|---|---|
| Task & likeness | 6.0/10 | 4.0/10 |
| Anatomy & construction | 6.0/10 | 3.0/10 |
| Space & placement | 7.5/10 | 4.0/10 |
| Light & reflections | 6.5/10 | 4.5/10 |
| Purposeful detail | 5.5/10 | 4.0/10 |
| Artistry & character | 5.0/10 | 4.5/10 |
| Materials & effects | 6.5/10 | 4.5/10 |
| Visual integrity | 7.5/10 | 4.0/10 |
Gemma 4 31B
A small luminous creature proudly holding an empty glass jar tests expression, transparent materials and the balance of character and prop.
Iceman Contributor
Character scenes test expression, anatomy, materials and coherent visual construction.
Precise visual recall and portrait reconstruction.


Gemma 4 31B
The portrait is recognizable through its silhouette, palette and smile, with clean execution of simple shapes. Replication remains weak: the face and pose differ markedly, hands become fingerless ovals, clothing lacks construction, and the landscape loses its atmospheric detail. Basic gradients provide limited volume.
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 | Gemma 4 31B | Iceman Contributor |
|---|---|---|
| Task & likeness | 3.0/10 | 1.5/10 |
| Anatomy & construction | 4.0/10 | 1.5/10 |
| Space & placement | 4.0/10 | 2.5/10 |
| Light & reflections | 3.5/10 | 2.0/10 |
| Purposeful detail | 2.0/10 | 2.0/10 |
| Artistry & character | 3.5/10 | 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.


Gemma 4 31B
A coherent beach illustration with clean silhouettes, a sweeping shoreline and an effective sunset palette. Requested subjects are recognizable, but primitive animal construction, sparse detail, unsupported palm placement and schematic reflections limit drawing sophistication and physical credibility.
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 | Gemma 4 31B | Iceman Contributor |
|---|---|---|
| Task & likeness | 5.0/10 | 7.0/10 |
| Anatomy & construction | 2.0/10 | 3.5/10 |
| Space & placement | 5.0/10 | 6.0/10 |
| Light & reflections | 2.5/10 | 4.0/10 |
| Purposeful detail | 2.0/10 | 5.5/10 |
| Artistry & character | 2.0/10 | 3.5/10 |
| Materials & effects | 2.0/10 | 4.5/10 |
| Visual integrity | 5.0/10 | 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.


Gemma 4 31B
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.


Gemma 4 31B
Clean, simple silhouettes communicate a raccoon riding on a dog. Limited animal specificity, absent steering controls and a flat platform weaken the requested scene. Small facial marks provide purposeful detail, while unresolved support, flat lighting and schematic water restrict physical coherence. Primitive but coherent construction supports basic drawing quality.
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 | Gemma 4 31B | Iceman Contributor |
|---|---|---|
| Task & likeness | 2.5/10 | 2.0/10 |
| Anatomy & construction | 3.0/10 | 3.0/10 |
| Space & placement | 4.0/10 | 3.0/10 |
| Light & reflections | 1.0/10 | 4.0/10 |
| Purposeful detail | 2.5/10 | 3.5/10 |
| Artistry & character | 2.5/10 | 2.5/10 |
| Materials & effects | 2.0/10 | 4.0/10 |
| Visual integrity | 7.0/10 | 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.


Gemma 4 31B
A clean, readable illustration with balanced placement and coherent basic geometry. The sky gradient and ground shadow establish diffuse illumination. Primitive shapes and sparse detail limit artistry, while unclear leg attachment, missing pedal contact and unresolved steering weaken the riding action.
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 | Gemma 4 31B | Iceman Contributor |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.0/10 | 3.5/10 |
| Space & placement | 4.5/10 | 3.5/10 |
| Light & reflections | 5.0/10 | 5.0/10 |
| Purposeful detail | 3.0/10 | 4.5/10 |
| Artistry & character | 3.0/10 | 3.5/10 |
| Materials & effects | 4.0/10 | 4.0/10 |
| Visual integrity | 4.5/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.