Gemini 4 Argon 48.6/100Rank 19/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Gemini 4 Argon leads Kimi K3.1 Pro by 10.7 points on StealthMark, 67.4 to 56.7. It leads on 8 of 9 benchmarks, including Latch, and Kimi K3.1 Pro on 1, including Foresight. Gemini 4 Argon 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
Gemini 4 Argon scores higher on StealthMark and runs 23% faster in our speed test. Both take about 1M tokens of context.
Full datasheets, every price and sourceGemini 4 Argon ↗Kimi K3.1 Pro ↗
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 ↗


Gemini 4 Argon
The central sphere, separate airborne black blob, flattened cyan contact and displaced crimson aftermath support the principal camera and physical-state requirements. Open lateral lanes and initial reflection placements provide partial optical structure, but missing outer chains, sparse nested imagery and incomplete emitter mappings remain substantial limitations. The raised crimson mass also weakens paint-scale fidelity.
Kimi K3.1 Pro
The settled sphere, separate airborne black paint and crimson-before-cyan interaction are supported, with a modest crimson travel overshoot. A shared downward framing displacement remains after accounting for the square canvas. The principal limitation is the reflection system: sparse sphere copies and generic curved bands omit most of the ordered mirror-room structure. Materials receive a small upward revision because bounded bright images and dark bands visibly establish some polish, while soft shading and bulky paint remain separate weaknesses.
| Category | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| State at 600 ms | 24.5/25 | 23.5/25 |
| Camera and placement | 14.5/15 | 10.5/15 |
| Reflections | 50.5/120 | 26.0/120 |
| Materials and scale | 8.5/10 | 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.


Gemini 4 Argon
An appealing, controlled illustration with a distinctive buoyant silhouette, expressive comic face and rich luminous colour. The full composition and grounded slipper read clearly. The principal limitation is the crowded raised-foot interaction: paws, toes and lining overlap without making the bent leg or tight fit unmistakable.
Kimi K3.1 Pro
The transformed reflection, attentive pose and constellation anatomy clearly communicate introspection. Purposeful fine details enrich a coherent composition. Tubular limbs, crowded lower-body overlaps, shallow depth and limited cast lighting keep the overall execution within the competent range.
| Category | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| Task & likeness | 7.0/10 | 8.0/10 |
| Anatomy & construction | 6.5/10 | 5.5/10 |
| Space & placement | 7.5/10 | 6.5/10 |
| Light & reflections | 7.5/10 | 6.5/10 |
| Purposeful detail | 8.0/10 | 7.5/10 |
| Artistry & character | 7.0/10 | 7.0/10 |
| Materials & effects | 7.0/10 | 7.0/10 |
| Visual integrity | 7.5/10 | 7.0/10 |
Gemini 4 Argon
A luminous little dragon struggles with its bedtime slippers while a buoyant tail pulls it upward. The scene tests expressive anatomy, physical contact and the contrast between translucent forms and heavy objects.
Kimi K3.1 Pro
An imagined creature encounters its reflection. The scene tests original character design, visual self-interpretation and the relationship between a subject and its reflected image.
Precise visual recall and portrait reconstruction.


Gemini 4 Argon
A coherent, moderately complex Mona Lisa reconstruction with substantial portrait volume, articulated clothing and landscape recession. Specific source features support replication beyond recognition alone. Altered facial likeness, uncertain crossed-hand anatomy and pervasive colored crackle keep the result uneven despite its developed shading and detail.
Kimi K3.1 Pro
A coherent, recognizable interpretation with controlled color and readable landscape layers. Replication is limited by the frontal seated construction, elongated facial proportions and oversized, weakly articulated hands. Smooth shading supplies some volume but little of the reference's subtle expression, fabric structure or atmospheric transitions.
| Category | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| Task & likeness | 6.5/10 | 5.0/10 |
| Anatomy & construction | 6.5/10 | 5.0/10 |
| Space & placement | 6.5/10 | 5.5/10 |
| Light & reflections | 7.0/10 | 6.0/10 |
| Purposeful detail | 6.0/10 | 5.5/10 |
| Artistry & character | 6.5/10 | 6.0/10 |
| Materials & effects | 7.0/10 | 5.0/10 |
| Visual integrity | 7.0/10 | 6.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Gemini 4 Argon
A strong decorative beach illustration with controlled color, intricate silhouettes and abundant playful detail. Connected dolphin forms and recognizable equipment support its construction, while the aligned sunset reflection anchors the scene. Compressed wave depth, ambiguous foreground support and uneven reflection specificity limit physical coherence. The saved comparisons support retaining the category assessments.
Kimi K3.1 Pro
A coherent, playful beach illustration with readable animals, an organized composition and an aligned sunset reflection. Connected silhouettes, sand texture and atmospheric effects demonstrate controlled execution. Simplified joints, flattened foreground viewpoints and inconsistent shadows limit anatomical and spatial credibility.
| Category | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| Task & likeness | 9.0/10 | 8.5/10 |
| Anatomy & construction | 7.5/10 | 5.5/10 |
| Space & placement | 8.5/10 | 5.5/10 |
| Light & reflections | 8.5/10 | 6.5/10 |
| Purposeful detail | 9.0/10 | 6.5/10 |
| Artistry & character | 8.0/10 | 5.5/10 |
| Materials & effects | 8.0/10 | 6.5/10 |
| Visual integrity | 8.0/10 | 7.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Gemini 4 Argon
This benchmark has not been assessed yet.
Kimi K3.1 Pro
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.


Gemini 4 Argon
An accomplished illustration with expressive characters, intricate spray and strong depth. Direct back seating, steering connections and hull-water contact are only partly demonstrated. Clean graphic execution and purposeful detail remain strengths, while shadows and reflections provide limited physical grounding.
Kimi K3.1 Pro
The additional comparisons support retaining the assessment. Readable steering, shaped animal contours and purposeful details coexist with simplified joints, a frontal passenger whose seated weight is weakly conveyed, and limited physical lighting. The angled craft establishes more depth than the riding pose resolves.
| Category | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| Task & likeness | 8.5/10 | 7.0/10 |
| Anatomy & construction | 8.0/10 | 5.5/10 |
| Space & placement | 7.5/10 | 6.0/10 |
| Light & reflections | 7.5/10 | 5.5/10 |
| Purposeful detail | 8.5/10 | 7.0/10 |
| Artistry & character | 8.5/10 | 6.0/10 |
| Materials & effects | 8.0/10 | 6.0/10 |
| Visual integrity | 8.0/10 | 7.0/10 |
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.


Gemini 4 Argon
An expressive, detailed illustration with controlled gradients and coherent environmental depth. Continuous body contours and connected bicycle components establish competent construction. Steering grip and pedal engagement remain less explicit than the decorative details and wheel placement. These contact uncertainties limit action and placement credit without establishing broken anatomy.
Kimi K3.1 Pro
A characterful coastal illustration with controlled contours and varied feather, accessory and bicycle detail. Layered scenery and subtle shading enrich the presentation. Soft leg articulation, unresolved riding contacts, shallow depth and generalized lighting limit physical precision.
| Category | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| Task & likeness | 9.0/10 | 8.5/10 |
| Anatomy & construction | 8.5/10 | 7.5/10 |
| Space & placement | 8.0/10 | 6.5/10 |
| Light & reflections | 8.0/10 | 6.5/10 |
| Purposeful detail | 8.5/10 | 7.5/10 |
| Artistry & character | 8.5/10 | 7.5/10 |
| Materials & effects | 8.5/10 | 6.5/10 |
| Visual integrity | 8.5/10 | 7.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.