Gemma 4 31B 30.2/100Rank 29/49

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Step 5 Preview leads Gemma 4 31B by 13.2 points on StealthMark, 39.0 to 25.8. It leads on 6 of 9 benchmarks, including Latch, and Gemma 4 31B on 3, including Foresight. Step 5 Preview 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
Step 5 Preview scores higher on StealthMark and takes 4× more context.
Full datasheets, every price and sourceGemma 4 31B ↗Step 5 Preview ↗
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.
Step 5 Preview
The main sphere, airborne black and small colored features occupy broadly appropriate positions. Most of the defining mirror system is absent, and paint interaction remains only partially supported. The small paint features do not visibly establish a separate volume-scale violation.
| Category | Gemma 4 31B | Step 5 Preview |
|---|---|---|
| State at 600 ms | 11.0/25 | 20.0/25 |
| Camera and placement | 3.0/15 | 13.5/15 |
| Reflections | 0.0/120 | 20.0/120 |
| Materials and scale | 5.5/10 | 7.0/10 |
| 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.
Step 5 Preview
A charming diagonal climber and warm palette communicate the central idea. Simple rounded construction, crowded limb counting, uncertain footholds and an unattached upper shelf limit its physical coherence. Growth bands and the yarn trail add specificity, but the requested material distinctions and unravelled bootie remain underdeveloped.
| Category | Gemma 4 31B | Step 5 Preview |
|---|---|---|
| Task & likeness | 6.0/10 | 6.0/10 |
| Anatomy & construction | 6.0/10 | 4.5/10 |
| Space & placement | 7.5/10 | 5.0/10 |
| Light & reflections | 6.5/10 | 5.5/10 |
| Purposeful detail | 5.5/10 | 5.5/10 |
| Artistry & character | 5.0/10 | 5.0/10 |
| Materials & effects | 6.5/10 | 6.0/10 |
| Visual integrity | 7.5/10 | 5.0/10 |
Gemma 4 31B
A small luminous creature proudly holding an empty glass jar tests expression, transparent materials and the balance of character and prop.
Step 5 Preview
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.
Step 5 Preview
A recognizable, coherent simplification with purposeful facial contours and differentiated fingers. These provide more construction and detail than the broad silhouette alone suggests. The oversized face, frontal seated pose, unresolved wrists and sparse landscape still substantially limit likeness, depth and finish.
| Category | Gemma 4 31B | Step 5 Preview |
|---|---|---|
| Task & likeness | 3.0/10 | 4.0/10 |
| Anatomy & construction | 4.0/10 | 4.0/10 |
| Space & placement | 4.0/10 | 4.0/10 |
| Light & reflections | 3.5/10 | 3.5/10 |
| Purposeful detail | 2.0/10 | 4.0/10 |
| Artistry & character | 3.5/10 | 4.0/10 |
| Materials & effects | 2.5/10 | 3.0/10 |
| Visual integrity | 5.5/10 | 3.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


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.
Step 5 Preview
A recognizable sunset beach with clear warm-cool contrast and playful accessories. Basic animal construction, shallow foreground placement and schematic reflections limit spatial and physical credibility. Sparse descriptive detail and abruptly ended sky bands constrain the finish.
| Category | Gemma 4 31B | Step 5 Preview |
|---|---|---|
| Task & likeness | 5.0/10 | 4.0/10 |
| Anatomy & construction | 2.0/10 | 3.0/10 |
| Space & placement | 5.0/10 | 3.5/10 |
| Light & reflections | 2.5/10 | 3.5/10 |
| Purposeful detail | 2.0/10 | 3.0/10 |
| Artistry & character | 2.0/10 | 3.0/10 |
| Materials & effects | 2.0/10 | 3.5/10 |
| 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.


Gemma 4 31B
This benchmark has not been assessed yet.
Step 5 Preview
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.
Step 5 Preview
Recognizable animals, a bright palette and identifying accessories support a basic cartoon. Primitive anatomy, partial seated support, unresolved steering and weak hull-water contact limit the central action. Lighting and spray provide atmosphere without establishing convincing physical depth.
| Category | Gemma 4 31B | Step 5 Preview |
|---|---|---|
| Task & likeness | 2.5/10 | 4.0/10 |
| Anatomy & construction | 3.0/10 | 4.5/10 |
| Space & placement | 4.0/10 | 3.0/10 |
| Light & reflections | 1.0/10 | 3.5/10 |
| Purposeful detail | 2.5/10 | 4.0/10 |
| Artistry & character | 2.5/10 | 3.5/10 |
| Materials & effects | 2.0/10 | 3.0/10 |
| Visual integrity | 7.0/10 | 3.0/10 |
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.


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.
Step 5 Preview
The pelican and bicycle are recognizable, with a pleasant palette and basic diffuse shading. The riding relationship fails physically: the bird is unsupported, the front wheel is unmounted, and pedalling is unresolved. Simple geometric construction and sparse material treatment further limit the drawing.
| Category | Gemma 4 31B | Step 5 Preview |
|---|---|---|
| Task & likeness | 4.0/10 | 3.0/10 |
| Anatomy & construction | 3.0/10 | 3.0/10 |
| Space & placement | 4.5/10 | 3.0/10 |
| Light & reflections | 3.0/10 | 3.0/10 |
| Purposeful detail | 3.0/10 | 4.0/10 |
| Artistry & character | 3.0/10 | 3.0/10 |
| Materials & effects | 4.0/10 | 3.0/10 |
| Visual integrity | 4.5/10 | 2.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.