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

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Ling 3.1 Flash leads GPT-6.1 Terra Low by 0.9 points on StealthMark, 42.2 to 41.3. It leads on 6 of 9 benchmarks and GPT-6.1 Terra Low on 3, including both games. Ling 3.1 Flash scores higher on Newton's Mirror, with its largest category advantage in camera and placement.
See the difference ↘BENCHMARK BY BENCHMARK
DATASHEET
Full datasheets, every price and sourceLing 3.1 Flash ↗
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.
Ling 3.1 Flash
Central placement, separate airborne black paint and the elongated crimson coating earn substantial state and placement credit. Cyan contact remains unresolved. A few isolated sphere images provide limited optical evidence, while the defining repeated mirror structure is missing. Readable opaque metallic volume and restrained paint scale justify increased material credit. Core: 61.5/170; including the floor reward: 61.5/180.
| Category | GPT-6.1 Terra Low | Ling 3.1 Flash |
|---|---|---|
| State at 600 ms | 22.0/25 | 22.0/25 |
| Camera and placement | 4.0/15 | 13.5/15 |
| Reflections | 10.0/120 | 18.0/120 |
| Materials and scale | 6.0/10 | 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.


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.
Ling 3.1 Flash
An appealing, coherent storybook ant with a clear expression, complete silhouette and readable signal mechanism. Clean curves and warm accents support the composition, while simplified joints, schematic hardware, limited material differentiation and modest light interaction constrain its finish.
| Category | GPT-6.1 Terra Low | Ling 3.1 Flash |
|---|---|---|
| Task & likeness | 4.0/10 | 7.5/10 |
| Anatomy & construction | 3.5/10 | 7.5/10 |
| Space & placement | 4.5/10 | 7.0/10 |
| Light & reflections | 5.5/10 | 7.5/10 |
| Purposeful detail | 5.5/10 | 7.0/10 |
| Artistry & character | 5.0/10 | 7.0/10 |
| Materials & effects | 5.5/10 | 6.5/10 |
| Visual integrity | 4.0/10 | 8.0/10 |
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.
Ling 3.1 Flash
An ant tending signals in a miniature workshop tests insect anatomy, purposeful gestures and the placement of small objects in a lit environment.
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.
Ling 3.1 Flash
A basic, uneven Mona Lisa interpretation with a clear facial focal point, articulated eyes and modest tonal volume. Weak likeness, oversized head proportions, unclear shoulders, curled bare arms and indistinct hands limit replication. The compressed composition and rectangular torso weaken an otherwise coherent earthy palette.
| Category | GPT-6.1 Terra Low | Ling 3.1 Flash |
|---|---|---|
| Task & likeness | 5.0/10 | 2.0/10 |
| Anatomy & construction | 4.5/10 | 1.5/10 |
| Space & placement | 5.0/10 | 4.0/10 |
| Light & reflections | 6.0/10 | 3.5/10 |
| Purposeful detail | 5.0/10 | 3.5/10 |
| Artistry & character | 5.5/10 | 2.0/10 |
| Materials & effects | 5.0/10 | 1.5/10 |
| Visual integrity | 6.0/10 | 2.0/10 |
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.
Ling 3.1 Flash
A coherent sunset illustration with harmonious color, clean silhouettes and readable beach details. Its calm composition works well, while playful activity is modest. Simplified animal anatomy, shallow shoreline layering, repetitive foliage and a geometric reflection limit drawing sophistication and naturalism.
| Category | GPT-6.1 Terra Low | Ling 3.1 Flash |
|---|---|---|
| Task & likeness | 8.0/10 | 7.5/10 |
| Anatomy & construction | 5.5/10 | 6.0/10 |
| Space & placement | 5.5/10 | 7.0/10 |
| Light & reflections | 6.5/10 | 7.0/10 |
| Purposeful detail | 6.0/10 | 6.5/10 |
| Artistry & character | 5.0/10 | 6.5/10 |
| Materials & effects | 5.5/10 | 6.5/10 |
| Visual integrity | 7.5/10 | 6.0/10 |
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.
Ling 3.1 Flash
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.
Ling 3.1 Flash
An appealing sunset cartoon with recognizable animals, expressive faces and coherent landscape layers. The sky and warm water streaks provide its strongest rendering. Ambiguous seated support, stiff forelegs, a shallow hull and an unclear steering connection limit construction. Clean shapes and readable accessories add finish, while restrained spray and flat surfaces limit material and motion effects.
| Category | GPT-6.1 Terra Low | Ling 3.1 Flash |
|---|---|---|
| Task & likeness | 6.5/10 | 7.5/10 |
| Anatomy & construction | 5.0/10 | 5.5/10 |
| Space & placement | 5.5/10 | 7.0/10 |
| Light & reflections | 4.5/10 | 7.0/10 |
| Purposeful detail | 6.0/10 | 7.0/10 |
| Artistry & character | 5.0/10 | 5.5/10 |
| Materials & effects | 5.0/10 | 5.5/10 |
| Visual integrity | 6.0/10 | 6.0/10 |
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.


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.
Ling 3.1 Flash
A clean, appealing pelican illustration with a readable bicycle and coherent landscape. Bill shading, feather layers and faint wheel shadows provide modest depth. Uncertain pedal contact, simplified leg construction and limited material rendering keep the result within competent illustration quality.
| Category | GPT-6.1 Terra Low | Ling 3.1 Flash |
|---|---|---|
| Task & likeness | 7.0/10 | 7.5/10 |
| Anatomy & construction | 5.5/10 | 5.5/10 |
| Space & placement | 6.0/10 | 7.0/10 |
| Light & reflections | 5.5/10 | 6.5/10 |
| Purposeful detail | 6.5/10 | 6.0/10 |
| Artistry & character | 6.0/10 | 6.5/10 |
| Materials & effects | 6.0/10 | 6.5/10 |
| Visual integrity | 6.0/10 | 6.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.