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

STEALTHMARK · HEAD TO HEAD
All comparisons ↗DeepSeek-V4-Pro-0813 leads Beam 1.0 501B A23B by 9.9 points on StealthMark, 41.8 to 31.9. It leads on 6 of 9 benchmarks, including Latch, and Beam 1.0 501B A23B on 3, including Foresight. DeepSeek-V4-Pro-0813 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
Beam 1.0 501B A23B is 3.8× cheaper per output token and runs 7.1× faster in our speed test. DeepSeek-V4-Pro-0813 scores higher on StealthMark. Both take about 1M tokens of context.
Full datasheets, every price and sourceBeam 1.0 501B A23B ↗DeepSeek-V4-Pro-0813 ↗
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.
DeepSeek-V4-Pro-0813
The central sphere and gross paint state are coherent. Reduced circular side images and paired overhead quadrilaterals offer limited, spatially organized reflection cues, but the floor-sphere image, receding mirror-room structure, outer chains, nested imagery and curved emitter mappings are largely missing or invalid.
| Category | Beam 1.0 501B A23B | DeepSeek-V4-Pro-0813 |
|---|---|---|
| State at 600 ms | 20.5/25 | 22.0/25 |
| Camera and placement | 11.5/15 | 15.0/15 |
| Reflections | 2.0/120 | 11.0/120 |
| Materials and scale | 3.0/10 | 8.0/10 |
| 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.
DeepSeek-V4-Pro-0813
The whale’s warm eye, lavender assistant and tilted shell convey appealing character. However, the shrimp and reciprocal inspection are unresolved, the large bubble and upper tail are cropped, and the flipper’s grip is unclear. Broad competing color fields and conspicuous stepped edges weaken the flowing composition. Gradients suggest volume, but lighting and translucent materials remain uneven.
| Category | Beam 1.0 501B A23B | DeepSeek-V4-Pro-0813 |
|---|---|---|
| Task & likeness | 4.0/10 | 3.0/10 |
| Anatomy & construction | 3.5/10 | 5.0/10 |
| Space & placement | 5.5/10 | 4.0/10 |
| Light & reflections | 5.5/10 | 5.5/10 |
| Purposeful detail | 4.5/10 | 5.5/10 |
| Artistry & character | 4.0/10 | 2.5/10 |
| Materials & effects | 4.5/10 | 5.0/10 |
| Visual integrity | 7.0/10 | 3.0/10 |
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.
DeepSeek-V4-Pro-0813
A whale and a tiny shrimp examine one another through bubble lenses, with an octopus nearby. The scene tests interacting characters, differences in scale and transparent materials.
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.
DeepSeek-V4-Pro-0813
Dark hair, a restrained smile and a hazy landscape make the reference recognizable. Severe construction problems dominate: oversized looping sleeves surround a background-colored opening, and the crossed hands lack coherent wrist and forearm connections. Rigid symmetry and elongated facial proportions weaken expression. Soft skin gradients and clean contours provide limited finish.
| Category | Beam 1.0 501B A23B | DeepSeek-V4-Pro-0813 |
|---|---|---|
| Task & likeness | 0.0/10 | 2.0/10 |
| Anatomy & construction | 0.0/10 | 0.5/10 |
| Space & placement | 0.0/10 | 2.0/10 |
| Light & reflections | 0.5/10 | 2.0/10 |
| Purposeful detail | 0.0/10 | 2.0/10 |
| Artistry & character | 0.0/10 | 3.0/10 |
| Materials & effects | 0.0/10 | 1.5/10 |
| Visual integrity | 0.0/10 | 1.0/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


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.
DeepSeek-V4-Pro-0813
The glowing sunset, framing palms and layered shoreline create a coherent beach scene with animals, birds and playful accessories. The airborne blue animal has unclear anatomy, while flat foliage, weak ground contact and broad oval reflections limit depth and finish. The image is appealing but visibly simplified.
| Category | Beam 1.0 501B A23B | DeepSeek-V4-Pro-0813 |
|---|---|---|
| Task & likeness | 7.0/10 | 6.5/10 |
| Anatomy & construction | 5.0/10 | 4.0/10 |
| Space & placement | 6.0/10 | 5.5/10 |
| Light & reflections | 5.0/10 | 6.0/10 |
| Purposeful detail | 5.5/10 | 3.5/10 |
| Artistry & character | 4.0/10 | 4.0/10 |
| Materials & effects | 5.0/10 | 6.0/10 |
| Visual integrity | 5.0/10 | 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.


Beam 1.0 501B A23B
This benchmark has not been assessed yet.
DeepSeek-V4-Pro-0813
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.
DeepSeek-V4-Pro-0813
The masked raccoon riding the steering dog is readily recognizable, with expressive faces and energetic diagonal movement. The oversized tail dominates the composition, limb connections are difficult to trace, and the jet ski has little structural depth. Blurred spray and a heavy oval shadow weaken water contact, while the glowing sun produces little corresponding illumination.
| Category | Beam 1.0 501B A23B | DeepSeek-V4-Pro-0813 |
|---|---|---|
| Task & likeness | 5.0/10 | 7.0/10 |
| Anatomy & construction | 3.5/10 | 4.5/10 |
| Space & placement | 5.5/10 | 6.0/10 |
| Light & reflections | 4.0/10 | 4.5/10 |
| Purposeful detail | 6.5/10 | 6.0/10 |
| Artistry & character | 3.5/10 | 4.5/10 |
| Materials & effects | 5.0/10 | 5.0/10 |
| Visual integrity | 6.5/10 | 4.0/10 |
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.
DeepSeek-V4-Pro-0813
A clearly recognizable pelican cycles through a balanced, expressive illustration. The sweeping bill, shaded plumage and carefully drawn wheels give it character. Mechanical construction is weaker: the chain loop sits below the crank, and foot-to-pedal and wing-to-handlebar contact are ambiguous. Smooth gradients provide volume, but the scene remains visibly stylized.
| Category | Beam 1.0 501B A23B | DeepSeek-V4-Pro-0813 |
|---|---|---|
| Task & likeness | 5.5/10 | 8.0/10 |
| Anatomy & construction | 4.5/10 | 5.0/10 |
| Space & placement | 5.0/10 | 6.5/10 |
| Light & reflections | 4.0/10 | 7.0/10 |
| Purposeful detail | 4.0/10 | 7.0/10 |
| Artistry & character | 4.0/10 | 5.5/10 |
| Materials & effects | 4.0/10 | 7.0/10 |
| Visual integrity | 5.5/10 | 5.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.