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

STEALTHMARK · HEAD TO HEAD
All comparisons ↗GPT-6 Sol leads Beam 1.0 501B A23B by 19.8 points on StealthMark, 51.7 to 31.9. It leads on 8 of 9 benchmarks, including Latch, and Beam 1.0 501B A23B on 1, including Foresight. GPT-6 Sol 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 10× cheaper per output token and runs 11× faster in our speed test. GPT-6 Sol scores higher on StealthMark. Both take about 1M tokens of context.
Full datasheets, every price and sourceBeam 1.0 501B A23B ↗GPT-6 Sol ↗
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.
GPT-6 Sol
The centered sphere, separate airborne black form and color ordering support scene recognition. Rounded shading and curved rims provide readable volume and gloss. Shrinking side images, a floor counterpart and curved lamp highlights provide isolated reflection cues, but broad bands and sparse repetitions leave nested room imagery, outer chains and ordered emitter mapping unsupported. Vertical framing departs from the prescribed view, while paint contact, transport and solid-metal appearance remain weak or uncertain.
| Category | Beam 1.0 501B A23B | GPT-6 Sol |
|---|---|---|
| State at 600 ms | 20.5/25 | 19.0/25 |
| Camera and placement | 11.5/15 | 12.0/15 |
| Reflections | 2.0/120 | 8.0/120 |
| Materials and scale | 3.0/10 | 6.5/10 |
| 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.


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.
GPT-6 Sol
Six evenly spaced lobes, small outward-facing heads and a regular hexagonal opening make the motif immediately readable. The central angular band merges several intersections, weakening the alternating weave. Pale shading gives modest volume, but scales are sparse and repetitive, crossing shadows are weak, and the heads have limited anatomical definition.
| Category | Beam 1.0 501B A23B | GPT-6 Sol |
|---|---|---|
| Task & likeness | 4.0/10 | 7.5/10 |
| Anatomy & construction | 3.5/10 | 6.5/10 |
| Space & placement | 5.5/10 | 6.5/10 |
| Light & reflections | 5.5/10 | 6.0/10 |
| Purposeful detail | 4.5/10 | 6.5/10 |
| Artistry & character | 4.0/10 | 7.0/10 |
| Materials & effects | 4.5/10 | 5.5/10 |
| Visual integrity | 7.0/10 | 6.0/10 |
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.
GPT-6 Sol
A pale serpent woven into an interlocking knot tests connected anatomy, repeated structure and readable overlaps. Organic surface detail must work with the overall geometry.
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.
GPT-6 Sol
The dark clothing, crossed arms, restrained smile and distant landscape establish the Mona Lisa reference. Replication is limited by the oversized, nearly frontal head, schematic eyes and fingerless hand shapes. Soft shading suggests facial volume, but muddy transitions and angular scenery weaken depth and painterly finish.
| Category | Beam 1.0 501B A23B | GPT-6 Sol |
|---|---|---|
| Task & likeness | 0.0/10 | 5.5/10 |
| Anatomy & construction | 0.0/10 | 3.5/10 |
| Space & placement | 0.0/10 | 5.5/10 |
| Light & reflections | 0.5/10 | 6.0/10 |
| Purposeful detail | 0.0/10 | 4.5/10 |
| Artistry & character | 0.0/10 | 5.0/10 |
| Materials & effects | 0.0/10 | 4.5/10 |
| Visual integrity | 0.0/10 | 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.


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.
GPT-6 Sol
A cohesive, appealing beach illustration with framing palms, a warm sunset and a clear reflection path. The turtle, crab, birds and beach ball fulfill the playful brief. Clean silhouettes and restrained colors work well, while simplified anatomy, shallow spatial cues and inconsistent foreground shadows limit depth and finish.
| Category | Beam 1.0 501B A23B | GPT-6 Sol |
|---|---|---|
| Task & likeness | 7.0/10 | 8.5/10 |
| Anatomy & construction | 5.0/10 | 7.0/10 |
| Space & placement | 6.0/10 | 7.0/10 |
| Light & reflections | 5.0/10 | 6.5/10 |
| Purposeful detail | 5.5/10 | 7.0/10 |
| Artistry & character | 4.0/10 | 6.0/10 |
| Materials & effects | 5.0/10 | 6.5/10 |
| Visual integrity | 5.0/10 | 7.5/10 |
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.
GPT-6 Sol
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.
GPT-6 Sol
The raccoon rides the dog's back, and the dog's connected foreleg reaches the steering grip. Expressive faces, a cohesive palette and sweeping wake make an appealing illustration. Vehicle construction and seating remain simplified; broad splash ribbons convey speed more convincingly than physical displacement. The sun has little corresponding reflection or effect on the subjects.
| Category | Beam 1.0 501B A23B | GPT-6 Sol |
|---|---|---|
| Task & likeness | 5.0/10 | 7.5/10 |
| Anatomy & construction | 3.5/10 | 6.5/10 |
| Space & placement | 5.5/10 | 7.5/10 |
| Light & reflections | 4.0/10 | 6.0/10 |
| Purposeful detail | 6.5/10 | 7.5/10 |
| Artistry & character | 3.5/10 | 6.5/10 |
| Materials & effects | 5.0/10 | 7.5/10 |
| Visual integrity | 6.5/10 | 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.


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.
GPT-6 Sol
The pelican reads clearly, with an expressive face, generous bill and appealing pastel composition. Spokes, basket weave and feather contours are carefully organized. Both legs connect to the body, though joint definition and pedal contacts are simplified. Consistent wheel placement and a ground shadow establish support; restrained shading gives limited volume.
| Category | Beam 1.0 501B A23B | GPT-6 Sol |
|---|---|---|
| Task & likeness | 5.5/10 | 9.0/10 |
| Anatomy & construction | 4.5/10 | 7.5/10 |
| Space & placement | 5.0/10 | 8.0/10 |
| Light & reflections | 4.0/10 | 7.0/10 |
| Purposeful detail | 4.0/10 | 8.0/10 |
| Artistry & character | 4.0/10 | 8.5/10 |
| Materials & effects | 4.0/10 | 7.0/10 |
| Visual integrity | 5.5/10 | 8.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.