Kimi K3.1 Pro 61.1/100Rank 10/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Kimi K3.1 Pro leads MISSINGNO. by 18.0 points on StealthMark, 56.7 to 38.7. It leads on all 7 benchmarks with results for both. Kimi K3.1 Pro 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
Kimi K3.1 Pro scores higher on StealthMark. MISSINGNO. runs 7.2× faster in our speed test.
Full datasheets, every price and sourceKimi 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 ↗


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.
MISSINGNO.
The centered sphere, separate airborne black blob and cyan-above-crimson ordering provide limited valid structure. The colored beads do not establish the required impact and transport histories. One dim floor image supports a small part of the optical system, while the defining wall repetitions, nested sphere imagery and emitter mappings are missing. Rounded volume and some gloss earn material credit, tempered by soft surface appearance and excessive paint-bead scale.
| Category | Kimi K3.1 Pro | MISSINGNO. |
|---|---|---|
| State at 600 ms | 23.5/25 | 19.0/25 |
| Camera and placement | 10.5/15 | 7.0/15 |
| Reflections | 26.0/120 | 12.0/120 |
| Materials and scale | 7.0/10 | 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.


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.
MISSINGNO.
An appealing purple character with a readable pleased expression and raised-moustache joke. Smooth shading and clean contours support the simple design, but indistinct mitten grips, minimally textured curls and an uncompressed strap weaken the requested physical interaction. The jelly suggests gloss more convincingly than translucency.
| Category | Kimi K3.1 Pro | MISSINGNO. |
|---|---|---|
| Task & likeness | 8.0/10 | 5.5/10 |
| Anatomy & construction | 5.5/10 | 4.5/10 |
| Space & placement | 6.5/10 | 6.0/10 |
| Light & reflections | 6.5/10 | 5.5/10 |
| Purposeful detail | 7.5/10 | 4.5/10 |
| Artistry & character | 7.0/10 | 4.5/10 |
| Materials & effects | 7.0/10 | 4.0/10 |
| Visual integrity | 7.0/10 | 6.0/10 |
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.
MISSINGNO.
A glossy purple jelly struggles with an oversized fake moustache at a playful checkpoint. The scene tests comic expression, physical contact and the appearance of a soft translucent body.
Precise visual recall and portrait reconstruction.


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.
MISSINGNO.
Clean contours, connected body forms and gentle gradients support a basic, coherent portrait. Likeness remains weak: the face dominates the body, the seated angle is lost, and crossed hands become dark lobes without traceable wrists or fingers. Readable facial details add some drawing complexity, but clothing, landscape and material treatment remain sparse.
| Category | Kimi K3.1 Pro | MISSINGNO. |
|---|---|---|
| Task & likeness | 5.0/10 | 1.5/10 |
| Anatomy & construction | 5.0/10 | 2.5/10 |
| Space & placement | 5.5/10 | 2.5/10 |
| Light & reflections | 6.0/10 | 3.0/10 |
| Purposeful detail | 5.5/10 | 2.0/10 |
| Artistry & character | 6.0/10 | 3.5/10 |
| Materials & effects | 5.0/10 | 2.0/10 |
| Visual integrity | 6.5/10 | 6.0/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


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.
MISSINGNO.
A coherent sunset beach with clear requested subjects, balanced framing and clean shapes. The aligned solar reflection and warm gradients establish atmosphere. Primitive animal construction, ambiguous furniture, sparse depth cues and minimally developed surfaces limit its drawing complexity and physical richness.
| Category | Kimi K3.1 Pro | MISSINGNO. |
|---|---|---|
| Task & likeness | 8.5/10 | 7.0/10 |
| Anatomy & construction | 5.5/10 | 4.0/10 |
| Space & placement | 5.5/10 | 6.5/10 |
| Light & reflections | 6.5/10 | 5.0/10 |
| Purposeful detail | 6.5/10 | 3.0/10 |
| Artistry & character | 5.5/10 | 3.0/10 |
| Materials & effects | 6.5/10 | 5.0/10 |
| Visual integrity | 7.5/10 | 3.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Kimi K3.1 Pro
This benchmark has not been assessed yet.
MISSINGNO.
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.


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.
MISSINGNO.
The requested interaction reads clearly through recognizable animals, expressive faces and a coherent hull-water relationship. Clean curves and readable accessories give the cartoon polish. Partly unresolved grips and supporting contacts limit physical construction; modest shape complexity, weak directional lighting and schematic water constrain its finish.
| Category | Kimi K3.1 Pro | MISSINGNO. |
|---|---|---|
| Task & likeness | 7.0/10 | 8.0/10 |
| Anatomy & construction | 5.5/10 | 4.5/10 |
| Space & placement | 6.0/10 | 5.5/10 |
| Light & reflections | 5.5/10 | 5.0/10 |
| Purposeful detail | 7.0/10 | 6.0/10 |
| Artistry & character | 6.0/10 | 5.0/10 |
| Materials & effects | 6.0/10 | 4.5/10 |
| Visual integrity | 7.0/10 | 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.


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.
MISSINGNO.
A coherent, cheerful illustration with recognizable pelican features, balanced composition, clean contours and useful small details. Its controlled curves and layered wheels demonstrate competent drawing skill. Ambiguous pedal and steering contacts, sparse drivetrain construction and weak directional lighting limit the riding mechanics and finish.
| Category | Kimi K3.1 Pro | MISSINGNO. |
|---|---|---|
| Task & likeness | 8.5/10 | 7.0/10 |
| Anatomy & construction | 7.5/10 | 5.5/10 |
| Space & placement | 6.5/10 | 6.0/10 |
| Light & reflections | 6.5/10 | 5.0/10 |
| Purposeful detail | 7.5/10 | 5.5/10 |
| Artistry & character | 7.5/10 | 6.0/10 |
| Materials & effects | 6.5/10 | 4.5/10 |
| Visual integrity | 7.5/10 | 6.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.