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

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Qwen3.8-Flash leads GPT-6.1 Terra Low by 5.3 points on StealthMark, 46.6 to 41.3. It leads on 6 of 9 benchmarks, including Latch, and GPT-6.1 Terra Low on 2, including Foresight, with 1 tied. Qwen3.8-Flash scores higher on Beach, with its largest category advantage in artistry & character.
See the difference ↘BENCHMARK BY BENCHMARK
DATASHEET
Full datasheets, every price and sourceQwen3.8-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.
Qwen3.8-Flash
The full-frame illustration supports a central steel sphere, an airborne black blob and the relative ordering of cyan and crimson. Its faint floor return and symmetric repetitions provide sparse mirror structure; outer chains, large reflected images, nested imagery and emitter mapping remain deficient. Vertical framing is substantially displaced, and paint contact histories remain unresolved.
| Category | GPT-6.1 Terra Low | Qwen3.8-Flash |
|---|---|---|
| State at 600 ms | 22.0/25 | 19.0/25 |
| Camera and placement | 4.0/15 | 3.5/15 |
| Reflections | 10.0/120 | 9.5/120 |
| Materials and scale | 6.0/10 | 4.0/10 |
| 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.
Qwen3.8-Flash
A coherent, appealing fantasy illustration with disciplined framing, luminous teal accents and consistent ornament. Most requested elements are clearly present. The bear-like facial proportions, lowered resting hand, obscured bent-leg construction and limited fabric modeling constrain likeness and anatomical clarity; glow effects are attractive but weakly integrated with surrounding surfaces.
| Category | GPT-6.1 Terra Low | Qwen3.8-Flash |
|---|---|---|
| Task & likeness | 4.0/10 | 8.0/10 |
| Anatomy & construction | 3.5/10 | 7.0/10 |
| Space & placement | 4.5/10 | 8.0/10 |
| Light & reflections | 5.5/10 | 7.5/10 |
| Purposeful detail | 5.5/10 | 8.0/10 |
| Artistry & character | 5.0/10 | 7.5/10 |
| Materials & effects | 5.5/10 | 7.5/10 |
| Visual integrity | 4.0/10 | 8.5/10 |
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.
Qwen3.8-Flash
A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.
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.
Qwen3.8-Flash
The dark dress, crossed hands and hazy landscape evoke the Mona Lisa, but replication is limited by a generic frontal face, coarse smile and poorly articulated fingers. The gold frame has clearer definition than the portrait. Heavy mottling obscures features, while soft shading provides some volume without convincing anatomical detail.
| Category | GPT-6.1 Terra Low | Qwen3.8-Flash |
|---|---|---|
| Task & likeness | 5.0/10 | 5.0/10 |
| Anatomy & construction | 4.5/10 | 4.5/10 |
| Space & placement | 5.0/10 | 5.5/10 |
| Light & reflections | 6.0/10 | 5.5/10 |
| Purposeful detail | 5.0/10 | 5.5/10 |
| Artistry & character | 5.5/10 | 5.5/10 |
| Materials & effects | 5.0/10 | 5.5/10 |
| Visual integrity | 6.0/10 | 5.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


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.
Qwen3.8-Flash
Sweeping palms, coordinated sunset colors and a central reflection create an expressive beach composition with clear depth. Birds, animals and varied activities thoroughly realize the brief. Small figures and animal anatomy remain rudimentary, water movement is schematic, and contact shadows are weak. Scattered foreground details and the clipped orange disk limit the finish.
| Category | GPT-6.1 Terra Low | Qwen3.8-Flash |
|---|---|---|
| Task & likeness | 8.0/10 | 9.0/10 |
| Anatomy & construction | 5.5/10 | 7.0/10 |
| Space & placement | 5.5/10 | 8.0/10 |
| Light & reflections | 6.5/10 | 7.5/10 |
| Purposeful detail | 6.0/10 | 8.5/10 |
| Artistry & character | 5.0/10 | 8.0/10 |
| Materials & effects | 5.5/10 | 6.5/10 |
| Visual integrity | 7.5/10 | 7.0/10 |
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.
Qwen3.8-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.
Qwen3.8-Flash
The raccoon clearly rides the dog's back, with expressive features and appealing blue-orange color contrast. The dog's paws do not clearly operate connected controls, and the shallow vehicle lacks convincing jet ski construction. Clean outlines support the cartoon style, but generic shading and blurred water streaks limit depth and motion.
| Category | GPT-6.1 Terra Low | Qwen3.8-Flash |
|---|---|---|
| Task & likeness | 6.5/10 | 7.0/10 |
| Anatomy & construction | 5.0/10 | 5.5/10 |
| Space & placement | 5.5/10 | 6.5/10 |
| Light & reflections | 4.5/10 | 5.5/10 |
| Purposeful detail | 6.0/10 | 7.0/10 |
| Artistry & character | 5.0/10 | 6.5/10 |
| Materials & effects | 5.0/10 | 5.5/10 |
| Visual integrity | 6.0/10 | 7.0/10 |
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.
Qwen3.8-Flash
The pelican's expressive face, oversized bill and flowing scarf create an appealing focal point. The bicycle has recognizable frame, chain and wheel construction, but the far foot lacks a clear pedal connection and the wing's steering contact is ambiguous. Clean contours and gentle gradients support the illustration; simplified volume and weak directional shadows limit depth.
| Category | GPT-6.1 Terra Low | Qwen3.8-Flash |
|---|---|---|
| Task & likeness | 7.0/10 | 8.5/10 |
| Anatomy & construction | 5.5/10 | 8.0/10 |
| Space & placement | 6.0/10 | 7.5/10 |
| Light & reflections | 5.5/10 | 6.5/10 |
| Purposeful detail | 6.5/10 | 8.0/10 |
| Artistry & character | 6.0/10 | 8.0/10 |
| Materials & effects | 6.0/10 | 7.0/10 |
| Visual integrity | 6.0/10 | 7.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.