Muse Wonder 52.3/100Rank 17/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Muse Wonder leads Callstack Apex by 7.5 points on StealthMark, 57.0 to 49.5. It leads on 5 of the 8 benchmarks with results for both, including Latch, and Callstack Apex on 3. Muse Wonder 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
Muse Wonder scores higher on StealthMark, takes 4× more context and runs 2.2× faster in our speed test. Callstack Apex is 6.7× cheaper per output token.
Full datasheets, every price and sourceMuse Wonder ↗Callstack Apex ↗
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 ↗


Muse Wonder
The flattened cyan cap, separate airborne black blob and crimson droplets support much of the contact sequence, although crimson adhesion and forward carriage remain unresolved. Main-sphere placement is broadly compatible with the prescribed view. Sparse isolated mirror images replace the defining repeated room structure and curved nested reflections. The crimson mass is visibly oversized, and the top-center lamp image is missing.
Callstack Apex
The principal sphere placement and paint contact sequence are supported. Isolated sphere and panel images provide limited optical structure, but missing lateral chains and side-floor continuations prevent a coherent repeating mirror room. The main and reflected spheres lack ordered curved nested imagery, while sparse planar emitter images and incomplete spherical emitter mapping leave most of the reflection system unsupported.
| Category | Muse Wonder | Callstack Apex |
|---|---|---|
| State at 600 ms | 22.0/25 | 20.0/25 |
| Camera and placement | 12.0/15 | 13.0/15 |
| Reflections | 21.5/120 | 10.0/120 |
| Materials and scale | 7.5/10 | 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.


Muse Wonder
An appealing, coherent cartoon with a readable effortful expression and clear forefeet gripping the trunk. Soft colours and controlled contours support its tenderness. Smooth ears, stiff foreleg construction, limited surface texture and uncertain seed contact keep the execution below intricate illustration quality.
Callstack Apex
The cheerful yellow bird, cream eyes, orange features and miniature teal console closely match the brief. Clean block edges, restrained colors and soft shadows create an appealing composition. The body reads more like a gridded disc than a fully cubic sphere, and the outlined left wing has limited volume. The right wing reaches the cyan block, though its grip is ambiguous.
| Category | Muse Wonder | Callstack Apex |
|---|---|---|
| Task & likeness | 7.5/10 | 8.5/10 |
| Anatomy & construction | 7.0/10 | 7.0/10 |
| Space & placement | 7.5/10 | 7.5/10 |
| Light & reflections | 7.0/10 | 7.5/10 |
| Purposeful detail | 7.5/10 | 7.5/10 |
| Artistry & character | 6.5/10 | 7.0/10 |
| Materials & effects | 6.5/10 | 7.0/10 |
| Visual integrity | 8.0/10 | 7.5/10 |
Muse Wonder
A small elephant protecting a delicate seed tests expressive anatomy, physical contact and contrasting organic materials.
Callstack Apex
A rounded bird built from small cubes explores a miniature machine. The scene tests block construction, expressive proportions, contact and soft lighting.
Precise visual recall and portrait reconstruction.


Muse Wonder
A competent illustrative interpretation with controlled curves, readable details and coherent depth layers. Facial, hair and garment shading demonstrate more development than basic construction. Replication remains limited by the frontal pose, elongated face and pronounced smile; crowded fingers, weak contact shadows and smooth materials constrain anatomical and painterly conviction.
Callstack Apex
The framed portrait recalls Mona Lisa through dark hair, folded arms and a hazy landscape. Replication is limited by wide, staring eyes, an elongated neck and a downturned mouth. The overlapping hands lack convincing finger and wrist construction. Soft tonal shading suggests volume, but pervasive blur obscures clothing, landscape and anatomical detail.
| Category | Muse Wonder | Callstack Apex |
|---|---|---|
| Task & likeness | 5.5/10 | 3.5/10 |
| Anatomy & construction | 5.5/10 | 4.0/10 |
| Space & placement | 5.5/10 | 4.5/10 |
| Light & reflections | 5.5/10 | 6.0/10 |
| Purposeful detail | 5.5/10 | 4.5/10 |
| Artistry & character | 5.5/10 | 4.5/10 |
| Materials & effects | 5.0/10 | 5.5/10 |
| Visual integrity | 6.5/10 | 5.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Muse Wonder
A lively beach illustration with expressive animals, controlled colour transitions and unusually readable accessories. Connected graphic forms make the activities recognizable. Crowded overlaps, compressed depth, schematic joints, weak directional shadows and limited material variation constrain its physical coherence and refinement.
Callstack Apex
A cohesive sunset beach illustration with lively wildlife, playful accents, and an appealing warm-to-purple palette. Palm framing and the aligned sun reflection organize the scene, while connected silhouettes keep the activities readable. Schematic joints, ambiguous dolphin junctions, loosely matched reflections, and repetitive surface marks limit construction, lighting coherence, and material depth.
| Category | Muse Wonder | Callstack Apex |
|---|---|---|
| Task & likeness | 8.5/10 | 8.5/10 |
| Anatomy & construction | 6.0/10 | 4.5/10 |
| Space & placement | 6.5/10 | 7.5/10 |
| Light & reflections | 6.5/10 | 5.5/10 |
| Purposeful detail | 9.0/10 | 7.5/10 |
| Artistry & character | 7.0/10 | 6.5/10 |
| Materials & effects | 6.0/10 | 7.0/10 |
| Visual integrity | 7.0/10 | 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.


Muse Wonder
This benchmark has not been assessed yet.
Callstack Apex
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.


Muse Wonder
An expressive, coherent cartoon demonstrates the requested riding and steering interaction. Clean contours, differentiated accessories and energetic spray support its appeal. Concealed seated contacts, compressed vehicle perspective and weak directional lighting limit physical resolution despite the detailed presentation.
Callstack Apex
The raccoon clearly rides the dog's back, and the dog's paws reach the jet ski controls. Expressive faces, a sweeping tail and a strong sunset composition give the illustration character. Limbs remain connected, but the dog's foreleg joints and vehicle seating are loosely constructed. Angular splashes convey speed more successfully than convincing water displacement; lighting and reflections remain decorative.
| Category | Muse Wonder | Callstack Apex |
|---|---|---|
| Task & likeness | 7.5/10 | 9.0/10 |
| Anatomy & construction | 5.5/10 | 7.0/10 |
| Space & placement | 6.5/10 | 7.5/10 |
| Light & reflections | 4.5/10 | 7.0/10 |
| Purposeful detail | 7.5/10 | 8.5/10 |
| Artistry & character | 5.5/10 | 7.5/10 |
| Materials & effects | 7.0/10 | 7.0/10 |
| Visual integrity | 7.0/10 | 8.0/10 |
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.

Muse Wonder
A controlled, expressive seaside illustration with a distinctive pelican, coherent bicycle geometry and successfully resolved graphic detail. Visible pedal support and plausible occlusion strengthen the riding construction. Aligned wheels and layered scenery establish placement. Limited cast shadows, simplified leg articulation and restrained material modeling constrain its physical finish.
Callstack Apex
An appealing cartoon with a distinctive pelican, expressive eye, warm bill and carefully drawn bicycle wheels. The wing reaches the handlebar, but the feet do not clearly engage the pedals, weakening the riding mechanics. Layered hills create depth; limited ground shadows weaken contact. Clean curves and purposeful feather details give the illustration polish.
| Category | Muse Wonder | Callstack Apex |
|---|---|---|
| Task & likeness | 8.5/10 | 8.5/10 |
| Anatomy & construction | 6.0/10 | 6.5/10 |
| Space & placement | 7.5/10 | 7.5/10 |
| Light & reflections | 5.5/10 | 7.5/10 |
| Purposeful detail | 8.5/10 | 8.0/10 |
| Artistry & character | 7.5/10 | 8.0/10 |
| Materials & effects | 6.0/10 | 7.5/10 |
| Visual integrity | 8.0/10 | 8.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.