Beam 1.0 501B A23B 49.4/100Rank 18/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Beam 1.0 501B A23B leads Nemotron 3 Ultra by 15.2 points on StealthMark, 31.9 to 16.7. It leads on all 9 benchmarks. Beam 1.0 501B A23B 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
Beam 1.0 501B A23B scores higher on StealthMark, is 2.4× cheaper per output token and runs 7× faster in our speed test. Both take about 1M tokens of context.
Full datasheets, every price and sourceBeam 1.0 501B A23B ↗Nemotron 3 Ultra ↗
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 ↗


Beam 1.0 501B A23B
Central object placement is fairly close, but the defining mirrored-room structure is missing. The paint colors suggest the required contact order without establishing their different interaction histories. The faint floor oval does not demonstrate valid reflection geometry, so it earns no reflection credit. Rounded volume and glossy paint provide limited material credit despite weak metallic finishes and oversized paint bodies.
Nemotron 3 Ultra
The candidate establishes a separate airborne black blob and partial crimson overlap, but leaves the paint interaction history and settled support unresolved. Its main silhouette, black placement and lamp projection depart substantially from the required camera geometry. A few faint reflection hints provide little support for the extensive mirror system, while the compact paint volumes are visibly disproportionate.
| Category | Beam 1.0 501B A23B | Nemotron 3 Ultra |
|---|---|---|
| State at 600 ms | 20.5/25 | 2.0/25 |
| Camera and placement | 11.5/15 | 3.5/15 |
| Reflections | 2.0/120 | 4.5/120 |
| Materials and scale | 3.0/10 | 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.


Beam 1.0 501B A23B
An appealing expression and warm palette support a coherent simple cartoon. The central polishing joke is not legible: the cloth is unresolved and the nose sits away from the fan. Pointed radial plates, uncertain limb attachments and weak ground contact limit construction, while restrained surface detail limits material richness.
Nemotron 3 Ultra
An endearing mechanical creature is clearly framed, with expressive amber eyes and readable segmented arms. The shell resembles layered green plates more than a deep coiled spiral. Detached-looking construction, absent working contacts and patchy rendering leave the central assembly action substantially unresolved.
| Category | Beam 1.0 501B A23B | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.5/10 | 4.0/10 |
| Space & placement | 5.5/10 | 5.5/10 |
| Light & reflections | 5.5/10 | 5.0/10 |
| Purposeful detail | 4.5/10 | 4.0/10 |
| Artistry & character | 4.0/10 | 3.0/10 |
| Materials & effects | 4.5/10 | 4.0/10 |
| Visual integrity | 7.0/10 | 4.5/10 |
Beam 1.0 501B A23B
A golden pangolin polishes its oversized amber tail while its nose smudges the same scale. The scene tests expressive anatomy, physical contact and contrasting translucent, polished and soft materials.
Nemotron 3 Ultra
A hovering mechanical nautilus tests spiral construction, connected mechanical forms and contrasting metal and illuminated surfaces.
Precise visual recall and portrait reconstruction.


Beam 1.0 501B A23B
The candidate shows a faint warm oval against an almost entirely black field. Minimal placement and smooth tonal variation are visible, but the portrait, anatomy, crossed hands and landscape remain unreadable. The saved comparisons provide no specific evidence supporting a change to the baseline categories.
Nemotron 3 Ultra
The centered silhouette provides basic organization, but multicolored mottling and geometric overlays leave the portrait unresolved. No readable face, crossed hands, clothing or landscape establishes Mona Lisa replication. Texture and transparency offer limited visual effects without coherent anatomy, lighting or material distinctions.
| Category | Beam 1.0 501B A23B | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 0.0/10 | 0.5/10 |
| Anatomy & construction | 0.0/10 | 0.0/10 |
| Space & placement | 0.0/10 | 1.0/10 |
| Light & reflections | 0.5/10 | 0.5/10 |
| Purposeful detail | 0.0/10 | 0.5/10 |
| Artistry & character | 0.0/10 | 1.5/10 |
| Materials & effects | 0.0/10 | 0.0/10 |
| Visual integrity | 0.0/10 | 0.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Beam 1.0 501B A23B
A coherent, cheerful beach illustration fulfills the main subjects with clean shapes and a strong sunset focal point. Its basic geometric construction, ambiguous animal anatomy, shallow depth and schematic lighting limit its accomplishment. Decorative details provide interest without developing intricate forms or convincing physical surfaces.
Nemotron 3 Ultra
A recognizable beach illustration with appealing warm-cool contrast, readable layers and mostly clean shapes. Unresolved seat construction, schematic animals and broad geometric foliage give it an elementary finish. Weakly coordinated reflections and limited material differentiation further constrain depth and atmosphere.
| Category | Beam 1.0 501B A23B | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 7.0/10 | 6.5/10 |
| Anatomy & construction | 5.0/10 | 3.0/10 |
| Space & placement | 6.0/10 | 5.0/10 |
| Light & reflections | 5.0/10 | 1.5/10 |
| Purposeful detail | 5.5/10 | 4.5/10 |
| Artistry & character | 4.0/10 | 3.0/10 |
| Materials & effects | 5.0/10 | 2.5/10 |
| Visual integrity | 5.0/10 | 6.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Beam 1.0 501B A23B
This benchmark has not been assessed yet.
Nemotron 3 Ultra
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.


Beam 1.0 501B A23B
A cheerful, readable illustration with recognizable animals, expressive faces and useful accessories. Simple rounded construction limits complexity, while ambiguous steering attachments and weak hull-to-water contact reduce physical coherence. Lighting and surface effects establish the setting without convincing environmental interaction.
Nemotron 3 Ultra
The masked raccoon, dog and orange craft make the scene recognizable, with an appealing sunset palette. Overlapping bodies obscure the riding relationship, and the dog's connection to the controls remains unresolved. Weak water displacement, inconsistent shading and visible shape artifacts limit the finish. Ambiguous attachments do not establish detached limbs or inverted anatomy.
| Category | Beam 1.0 501B A23B | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 5.0/10 | 3.5/10 |
| Anatomy & construction | 3.5/10 | 1.5/10 |
| Space & placement | 5.5/10 | 4.5/10 |
| Light & reflections | 4.0/10 | 2.0/10 |
| Purposeful detail | 6.5/10 | 3.5/10 |
| Artistry & character | 3.5/10 | 1.5/10 |
| Materials & effects | 5.0/10 | 3.0/10 |
| Visual integrity | 6.5/10 | 2.0/10 |
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.


Beam 1.0 501B A23B
A cheerful, clearly readable pelican-and-bicycle illustration with clean contours and balanced composition. Simple geometric construction limits artistic complexity, while ambiguous neck and steering overlaps, merged pedal contacts and an incomplete drivetrain weaken physical coherence.
Nemotron 3 Ultra
A recognizable, playful pelican dominates a readable bicycle scene. Its bill and silhouette succeed, but feet below the pedals and confused drivetrain connections weaken the riding action. Local material modeling adds interest; overlapping contours, repetitive detail and inconsistent shadows leave the illustration basic and uneven.
| Category | Beam 1.0 501B A23B | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 5.5/10 | 4.0/10 |
| Anatomy & construction | 4.5/10 | 3.5/10 |
| Space & placement | 5.0/10 | 3.5/10 |
| Light & reflections | 4.0/10 | 4.0/10 |
| Purposeful detail | 4.0/10 | 5.5/10 |
| Artistry & character | 4.0/10 | 4.0/10 |
| Materials & effects | 4.0/10 | 6.0/10 |
| Visual integrity | 5.5/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.