GPT-6.1 Terra Low 36.1/100Rank 26/51

STEALTHMARK · HEAD TO HEAD
All comparisons ↗GPT-6.1 Terra Low leads Iceman Contributor by 22.1 points on StealthMark, 41.3 to 19.2. It leads on all 9 benchmarks. GPT-6.1 Terra Low scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.
See the difference ↘BENCHMARK BY BENCHMARK
DATASHEET
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 ↗


GPT-6.1 Terra Low
Deformed colored paint and a separate airborne black body establish readable interaction history. Cyan has travelled too far, framing differs substantially, and the mirror system supplies only elementary bands and oval copies. Missing recursive geometry, nested spherical imagery and emitter mapping remain the dominant weaknesses.
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 | GPT-6.1 Terra Low | Iceman Contributor |
|---|---|---|
| State at 600 ms | 22.0/25 | 0.5/25 |
| Camera and placement | 4.0/15 | 2.5/15 |
| Reflections | 10.0/120 | 7.5/120 |
| Materials and scale | 6.0/10 | 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.


GPT-6.1 Terra Low
Six attached outward-facing heads, delicate scales and soft ivory shading establish an orderly decorative motif. Separate paddle-shaped bodies replace the required interlocking loops and leave no enclosed central hexagon. Surface detail provides interest, but repeated simple forms, schematic faces and limited anatomical modeling constrain the result.
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 | GPT-6.1 Terra Low | Iceman Contributor |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.5/10 | 3.0/10 |
| Space & placement | 4.5/10 | 4.0/10 |
| Light & reflections | 5.5/10 | 4.5/10 |
| Purposeful detail | 5.5/10 | 4.0/10 |
| Artistry & character | 5.0/10 | 4.5/10 |
| Materials & effects | 5.5/10 | 4.5/10 |
| Visual integrity | 4.0/10 | 4.0/10 |
GPT-6.1 Terra Low
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.
Iceman Contributor
Character scenes test expression, anatomy, materials and coherent visual construction.
Precise visual recall and portrait reconstruction.


GPT-6.1 Terra Low
A recognizable, coherent portrait with purposeful facial detail, warm local volume and layered scenery. The frontal pose, enlarged face, merged hands and shallow clothing construction substantially limit replication and drawing skill. The visible successes support retaining the current assessment.
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 | GPT-6.1 Terra Low | Iceman Contributor |
|---|---|---|
| Task & likeness | 5.0/10 | 1.5/10 |
| Anatomy & construction | 4.5/10 | 1.5/10 |
| Space & placement | 5.0/10 | 2.5/10 |
| Light & reflections | 6.0/10 | 2.0/10 |
| Purposeful detail | 5.0/10 | 2.0/10 |
| Artistry & character | 5.5/10 | 2.0/10 |
| Materials & effects | 5.0/10 | 2.0/10 |
| Visual integrity | 6.0/10 | 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.


GPT-6.1 Terra Low
A coherent sunset scene demonstrates the beach, animals, birds and reflections. Flowing silhouettes, warm color transitions and intact attachments are its strongest properties. Simplified anatomy, the turtle's elevated viewing angle and symbolic surface effects constrain drawing complexity and physical depth.
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 | GPT-6.1 Terra Low | Iceman Contributor |
|---|---|---|
| Task & likeness | 8.0/10 | 7.0/10 |
| Anatomy & construction | 5.5/10 | 3.5/10 |
| Space & placement | 5.5/10 | 6.0/10 |
| Light & reflections | 6.5/10 | 4.0/10 |
| Purposeful detail | 6.0/10 | 5.5/10 |
| Artistry & character | 5.0/10 | 3.5/10 |
| Materials & effects | 5.5/10 | 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.


GPT-6.1 Terra Low
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.


GPT-6.1 Terra Low
Recognizable animals, a coherent craft and sweeping wake make an appealing cartoon. Basic limb construction, weakly demonstrated raccoon seating and limited shared perspective constrain the scene. Small identifying details work well, while lighting and materials remain broadly graphic.
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 | GPT-6.1 Terra Low | Iceman Contributor |
|---|---|---|
| Task & likeness | 6.5/10 | 2.0/10 |
| Anatomy & construction | 5.0/10 | 3.0/10 |
| Space & placement | 5.5/10 | 3.0/10 |
| Light & reflections | 4.5/10 | 4.0/10 |
| Purposeful detail | 6.0/10 | 3.5/10 |
| Artistry & character | 5.0/10 | 2.5/10 |
| Materials & effects | 5.0/10 | 4.0/10 |
| Visual integrity | 6.0/10 | 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.


GPT-6.1 Terra Low
A coherent coastal illustration with a distinctive pelican, controlled contours and clearly organised bicycle wheels. Visible saddle support and shaped neck and wing contours earn credit beyond basic geometric construction. Rubbery legs, unresolved pedal contacts and absent steering contact limit the riding action. Lighting and materials remain restrained and spatially shallow.
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 | GPT-6.1 Terra Low | Iceman Contributor |
|---|---|---|
| Task & likeness | 7.0/10 | 4.0/10 |
| Anatomy & construction | 5.5/10 | 3.5/10 |
| Space & placement | 6.0/10 | 3.5/10 |
| Light & reflections | 5.5/10 | 5.0/10 |
| Purposeful detail | 6.5/10 | 4.5/10 |
| Artistry & character | 6.0/10 | 3.5/10 |
| Materials & effects | 6.0/10 | 4.0/10 |
| Visual integrity | 6.0/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.