GLM-5.3 59.1/100Rank 22/472 of 3 levels

STEALTHMARK · HEAD TO HEAD
All comparisons ↗GLM-5.3 leads Iceman Contributor by 25.9 points on StealthMark, 45.1 to 19.2. It leads on all 9 benchmarks. GLM-5.3 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
GLM-5.3 scores higher on StealthMark and runs 1.9× faster in our speed test.
Full datasheets, every price and sourceGLM-5.3 ↗
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 ↗


GLM-5.3
The sphere has readable rounded volume, and the compact black blob remains distinctly above it, supporting pre-impact separation. The extensive red and cyan coatings do not establish the required interaction history or paint scale. The sphere and black are substantially displaced downward. A centered upper panel, paired side patches and a vertically aligned partial floor image provide limited reflection cues, but ordered mirror-room repetitions and curved spherical imagery are largely missing.
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 | GLM-5.3 | Iceman Contributor |
|---|---|---|
| State at 600 ms | 9.0/25 | 0.5/25 |
| Camera and placement | 9.0/15 | 2.5/15 |
| Reflections | 10.0/120 | 7.5/120 |
| Materials and scale | 7.0/10 | 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.


GLM-5.3
A luminous organic creature meets a geometric reflection in a carefully framed oval mirror. Shared glowing cores and fingertip contact make the introspective symbolism clear. Gold, cream and blue establish a controlled hierarchy. The creature’s lower anatomy and shoulder transition remain loosely defined, while ground contact and reflected depth are mostly symbolic. Elegant vector illustration rather than photographic rendering.
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 | GLM-5.3 | Iceman Contributor |
|---|---|---|
| Task & likeness | 9.0/10 | 4.0/10 |
| Anatomy & construction | 7.0/10 | 3.0/10 |
| Space & placement | 7.0/10 | 4.0/10 |
| Light & reflections | 8.0/10 | 4.5/10 |
| Purposeful detail | 8.0/10 | 4.0/10 |
| Artistry & character | 7.0/10 | 4.5/10 |
| Materials & effects | 7.5/10 | 4.5/10 |
| Visual integrity | 8.0/10 | 4.0/10 |
GLM-5.3
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.
Iceman Contributor
Character scenes test expression, anatomy, materials and coherent visual construction.
Precise visual recall and portrait reconstruction.


GLM-5.3
Recognizable Mona Lisa motifs include the dark veil, restrained smile, folded hands and muted landscape. Clean silhouettes and balanced framing support the portrait, but the frontal symmetry, elongated face, minimally articulated hands and broad background bands make the replication basic. Facial shading offers some volume; clothing and landscape remain mostly flat.
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 | GLM-5.3 | Iceman Contributor |
|---|---|---|
| Task & likeness | 3.0/10 | 1.5/10 |
| Anatomy & construction | 2.0/10 | 1.5/10 |
| Space & placement | 3.0/10 | 2.5/10 |
| Light & reflections | 4.5/10 | 2.0/10 |
| Purposeful detail | 3.0/10 | 2.0/10 |
| Artistry & character | 2.5/10 | 2.0/10 |
| Materials & effects | 3.5/10 | 2.0/10 |
| Visual integrity | 4.0/10 | 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.


GLM-5.3
A cohesive, colorful beach illustration with an inviting sunset, readable animals and playful foreground objects. Crisp silhouettes and small accessories reward inspection. Depth remains shallow, airborne dolphins lack convincing launch splashes, and several objects lack grounding shadows. The broad dark shape across the sun weakens the focal hierarchy.
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 | GLM-5.3 | Iceman Contributor |
|---|---|---|
| Task & likeness | 8.5/10 | 7.0/10 |
| Anatomy & construction | 7.5/10 | 3.5/10 |
| Space & placement | 7.0/10 | 6.0/10 |
| Light & reflections | 7.0/10 | 4.0/10 |
| Purposeful detail | 8.0/10 | 5.5/10 |
| Artistry & character | 7.5/10 | 3.5/10 |
| Materials & effects | 6.5/10 | 4.5/10 |
| Visual integrity | 7.5/10 | 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.


GLM-5.3
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.


GLM-5.3
The raccoon rides on the dog's back, and the dog reaches toward visible handlebars. Expressive faces and clean colors make the action readable. Overlapping paws and hindquarters weaken anatomical clarity, while the vehicle resembles a flat board with a thin steering post. The wake suggests motion, but water contact, shadows and reflections receive little development.
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 | GLM-5.3 | Iceman Contributor |
|---|---|---|
| Task & likeness | 6.5/10 | 2.0/10 |
| Anatomy & construction | 4.5/10 | 3.0/10 |
| Space & placement | 5.5/10 | 3.0/10 |
| Light & reflections | 4.0/10 | 4.0/10 |
| Purposeful detail | 5.0/10 | 3.5/10 |
| Artistry & character | 4.0/10 | 2.5/10 |
| Materials & effects | 5.0/10 | 4.0/10 |
| Visual integrity | 7.5/10 | 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.


GLM-5.3
The expressive pelican, broad bill and clean coastal composition make the subject immediately readable. Both legs connect to the body and reach pedals, but the front wheel lacks a connected fork and the wings do not engage visible handlebars. Crisp spokes and feather lines add interest; flat lighting, absent ground shadows and a fish floating above the horizon weaken physical coherence.
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 | GLM-5.3 | Iceman Contributor |
|---|---|---|
| Task & likeness | 7.5/10 | 4.0/10 |
| Anatomy & construction | 4.0/10 | 3.5/10 |
| Space & placement | 6.0/10 | 3.5/10 |
| Light & reflections | 4.0/10 | 5.0/10 |
| Purposeful detail | 6.5/10 | 4.5/10 |
| Artistry & character | 6.5/10 | 3.5/10 |
| Materials & effects | 5.0/10 | 4.0/10 |
| Visual integrity | 5.5/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.