GPT 5.6 Terra30.1/100Rank 29/43

STEALTHMARK · HEAD TO HEAD
All comparisons ↗GPT 5.6 Terra leads MiniMax M3.1 Flash by 0.8 points on StealthMark, 46.2 to 45.4. MiniMax M3.1 Flash leads on 7 of 9 benchmarks, including Foresight, and GPT 5.6 Terra on 2, including Latch. MiniMax M3.1 Flash scores higher on Newton's Mirror, with its largest category advantage in reflections.
See the difference ↘BENCHMARK BY BENCHMARK
Planning and learning across maze levels. 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 across puzzle levels. 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 5.6 Terra
The real sphere and airborne black blob are substantially too low in the complete frame after accounting for aspect ratio. The first wall and floor reflections have incompatible placement, relative size or silhouette. Both lateral regions lack the references' receding lane-and-chain organization. The few recognizable mirror images provide limited optical structure. The main, side and floor spheres replace nested mirror imagery with smooth bands, while sparse planar light patches and broad spherical highlights fail to establish coherent repeated emitter mapping.
MiniMax M3.1 Flash
The sphere placement, separate airborne black blob, recent cyan contact and elongated crimson aftermath support the required gross physical state. The reflection system remains severely incomplete: isolated side images, broad metallic bands and sparse light patches replace extensive mirror repetitions and curved nested imagery.
| Category | GPT 5.6 Terra | MiniMax M3.1 Flash |
|---|---|---|
| State at 600 ms | 23.5/25 | 20.0/25 |
| Camera and placement | 6.0/15 | 10.0/15 |
| Reflections | 7.0/120 | 24.0/120 |
| Materials and scale | 5.5/10 | 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.


GPT 5.6 Terra
Six ivory heads and rounded lobes create a striking radial emblem around a clear hexagonal opening. Soft shading gives the bodies volume, but abrupt rectangular and diagonal band endings make the continuous alternating weave ambiguous. Repetitive scale lines and simplified faces convey an ornamental serpent more convincingly than living anatomy.
MiniMax M3.1 Flash
The sculptural M, confident grin and miniature theatrical pose closely fulfill the brief. Controlled gradients and clean shapes give the character volume and appeal. Moderate drawing complexity, an apparently separated shoe and ambiguous grounding limit the finish.
| Category | GPT 5.6 Terra | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 7.5/10 | 7.5/10 |
| Anatomy & construction | 5.5/10 | 6.0/10 |
| Space & placement | 7.5/10 | 7.0/10 |
| Light & reflections | 7.5/10 | 6.0/10 |
| Purposeful detail | 6.5/10 | 5.0/10 |
| Artistry & character | 6.0/10 | 6.0/10 |
| Materials & effects | 7.0/10 | 7.0/10 |
| Visual integrity | 6.5/10 | 6.0/10 |
GPT 5.6 Terra
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.
MiniMax M3.1 Flash
A small robot with an oversized angular head presents a glowing object. The scene tests character proportions, gesture and contrasting materials.
Precise visual recall and portrait reconstruction.


GPT 5.6 Terra
The dark clothing, central portrait and restrained smile evoke the Mona Lisa, but replication is limited by the broad face, elongated neck, nearly frontal pose and indistinct landscape. Soft gradients give the face some volume. Crossed arms become rounded masses without readable fingers or wrists, and the expression lacks the original's subtlety. Clean framing and curves support an otherwise basic, uneven portrait.
MiniMax M3.1 Flash
A coherent decorative portrait combines layered hair, garment contours, linked trim and atmospheric scenery. These provide meaningful drawing complexity, but likeness remains limited by the frontal elongated face and altered clothing. Compressed hands, abrupt facial shading and cluttered local edges leave the portrait uneven.
| Category | GPT 5.6 Terra | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.0/10 | 4.5/10 |
| Space & placement | 4.5/10 | 5.5/10 |
| Light & reflections | 5.0/10 | 4.5/10 |
| Purposeful detail | 4.0/10 | 5.5/10 |
| Artistry & character | 4.0/10 | 6.0/10 |
| Materials & effects | 4.0/10 | 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 5.6 Terra
Warm sunset gradients, framing palms and colorful beach activities create an appealing scene. Animals, birds and a sun reflection fulfill the brief. The dog and turtle remain schematic, foreground depth is shallow, and the reflection forms rigid bands. Clean silhouettes and readable accessories support a competent illustration, but limited anatomy, material variation and lighting keep it below exceptional.
MiniMax M3.1 Flash
A controlled, detailed beach illustration with expressive animals, coherent depth and accomplished foliage and accessory drawing. Its warm palette and varied contours sustain visual interest. Simplified anatomy and object volumes limit physical conviction, while reflection streaks crossing dry-looking sand and generic shadows weaken the lighting.
| Category | GPT 5.6 Terra | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 8.0/10 | 8.5/10 |
| Anatomy & construction | 5.5/10 | 7.0/10 |
| Space & placement | 7.0/10 | 7.5/10 |
| Light & reflections | 6.0/10 | 6.0/10 |
| Purposeful detail | 6.5/10 | 8.0/10 |
| Artistry & character | 5.5/10 | 6.5/10 |
| Materials & effects | 5.5/10 | 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.


GPT 5.6 Terra
This benchmark has not been assessed yet.
MiniMax M3.1 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 5.6 Terra
Expressive faces, a recognizable raccoon perched on the dog, and a sweeping wake make an appealing cartoon. The principal weakness is the steering interaction: the dog's paw sits beside the control assembly without a convincing handlebar grip. Bold outlines and coherent layering provide polish, while simplified shading, compressed seating geometry and angular splashes limit depth and physical credibility.
MiniMax M3.1 Flash
An expressive, coherent cartoon clearly demonstrates the requested riding and steering relationship. Layered animal shapes, readable vehicle depth and purposeful facial details support its drawing quality. Ambiguous grips, sparse cast shadows and simplified material responses limit physical precision.
| Category | GPT 5.6 Terra | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 7.5/10 | 9.0/10 |
| Anatomy & construction | 6.0/10 | 8.0/10 |
| Space & placement | 7.5/10 | 8.0/10 |
| Light & reflections | 6.5/10 | 6.0/10 |
| Purposeful detail | 7.5/10 | 7.5/10 |
| Artistry & character | 6.0/10 | 7.5/10 |
| Materials & effects | 7.0/10 | 7.0/10 |
| Visual integrity | 8.0/10 | 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.


GPT 5.6 Terra
The oversized bill, expressive eye and balanced twilight palette make the cyclist immediately readable. Clean contours and wheel details support the illustration, but the rabbit-like head tufts weaken pelican likeness. The wing does not clearly grip the handlebar, pedal contact is uneven, and the drivetrain is incomplete. Lighting remains mostly decorative.
MiniMax M3.1 Flash
A controlled coastal illustration with a clear pelican silhouette, detailed wheels and accomplished feather and bill drawing. Continuous body construction and grounded wheels support the scene. Ambiguous leg, pedal and steering contacts weaken the riding mechanics; approximate directional lighting and simplified materials limit physical conviction.
| Category | GPT 5.6 Terra | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 8.0/10 | 8.5/10 |
| Anatomy & construction | 6.5/10 | 6.5/10 |
| Space & placement | 7.0/10 | 8.0/10 |
| Light & reflections | 6.5/10 | 7.0/10 |
| Purposeful detail | 6.5/10 | 7.5/10 |
| Artistry & character | 7.0/10 | 6.5/10 |
| Materials & effects | 6.5/10 | 7.0/10 |
| Visual integrity | 8.0/10 | 6.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.