MiMo-V2.6-Pro 54.6/100Rank 13/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗MiMo-V2.6-Pro leads Nemotron 3 Ultra by 31.2 points on StealthMark, 47.9 to 16.7. It leads on all 9 benchmarks. MiMo-V2.6-Pro scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.
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
MiMo-V2.6-Pro scores higher on StealthMark and is 2.8× cheaper per output token. Nemotron 3 Ultra runs 21% faster in our speed test. Both take about 1M tokens of context.
Full datasheets, every price and sourceMiMo-V2.6-Pro ↗Nemotron 3 Ultra ↗
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 ↗


MiMo-V2.6-Pro
The main framing and visible paint-contact story are well supported. Major optical omissions dominate the result: sparse repetitions, undersized first images, missing outer chains and absent curved nested imagery prevent a coherent mirror-room system. The metallic forms remain convincing in volume but have a soft illustrative finish.
Nemotron 3 Ultra
The candidate establishes a separate airborne black blob and partial crimson overlap, but leaves the paint interaction history and settled support unresolved. Its main silhouette, black placement and lamp projection depart substantially from the required camera geometry. A few faint reflection hints provide little support for the extensive mirror system, while the compact paint volumes are visibly disproportionate.
| Category | MiMo-V2.6-Pro | Nemotron 3 Ultra |
|---|---|---|
| State at 600 ms | 23.0/25 | 2.0/25 |
| Camera and placement | 12.0/15 | 3.5/15 |
| Reflections | 19.0/120 | 4.5/120 |
| Materials and scale | 7.5/10 | 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.


MiMo-V2.6-Pro
An appealing rabbit with balanced framing, expressive eyes and purposeful costume accents. Simple frontal construction limits anatomical and spatial accomplishment. The orange orb provides an effective luminous focal point, but unreadable wrist connections weaken the requested gestures and prevent stronger integrity credit.
Nemotron 3 Ultra
An endearing mechanical creature is clearly framed, with expressive amber eyes and readable segmented arms. The shell resembles layered green plates more than a deep coiled spiral. Detached-looking construction, absent working contacts and patchy rendering leave the central assembly action substantially unresolved.
| Category | MiMo-V2.6-Pro | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 6.5/10 | 4.0/10 |
| Anatomy & construction | 5.0/10 | 4.0/10 |
| Space & placement | 5.5/10 | 5.5/10 |
| Light & reflections | 6.5/10 | 5.0/10 |
| Purposeful detail | 6.5/10 | 4.0/10 |
| Artistry & character | 5.0/10 | 3.0/10 |
| Materials & effects | 6.5/10 | 4.0/10 |
| Visual integrity | 6.0/10 | 4.5/10 |
MiMo-V2.6-Pro
A small rabbit in an explorer outfit floats with a luminous orb. The scene tests character anatomy, pose and the placement of geometric forms around it.
Nemotron 3 Ultra
A hovering mechanical nautilus tests spiral construction, connected mechanical forms and contrasting metal and illuminated surfaces.
Precise visual recall and portrait reconstruction.


MiMo-V2.6-Pro
The portrait is recognizable through its dark silhouette, slight smile and muted landscape, but replication is weak. A frontal, oversized head and symmetric torso replace the reference's turned seated pose; angular, separated hands omit its central gesture. Smooth shading maintains coherence while anatomical detail, depth and material rendering remain basic.
Nemotron 3 Ultra
The centered silhouette provides basic organization, but multicolored mottling and geometric overlays leave the portrait unresolved. No readable face, crossed hands, clothing or landscape establishes Mona Lisa replication. Texture and transparency offer limited visual effects without coherent anatomy, lighting or material distinctions.
| Category | MiMo-V2.6-Pro | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 3.5/10 | 0.5/10 |
| Anatomy & construction | 3.5/10 | 0.0/10 |
| Space & placement | 4.0/10 | 1.0/10 |
| Light & reflections | 5.0/10 | 0.5/10 |
| Purposeful detail | 3.0/10 | 0.5/10 |
| Artistry & character | 4.0/10 | 1.5/10 |
| Materials & effects | 4.0/10 | 0.0/10 |
| Visual integrity | 6.0/10 | 0.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


MiMo-V2.6-Pro
A readable sunset beach with clear requested subjects, appealing framing and purposeful accessories. Schematic anatomy, flattened foreground objects, repetitive water highlights and sparse directional shadows limit construction and physical depth. The kite's unresolved anchor also constrains integrity.
Nemotron 3 Ultra
A recognizable beach illustration with appealing warm-cool contrast, readable layers and mostly clean shapes. Unresolved seat construction, schematic animals and broad geometric foliage give it an elementary finish. Weakly coordinated reflections and limited material differentiation further constrain depth and atmosphere.
| Category | MiMo-V2.6-Pro | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 8.5/10 | 6.5/10 |
| Anatomy & construction | 5.0/10 | 3.0/10 |
| Space & placement | 6.0/10 | 5.0/10 |
| Light & reflections | 6.5/10 | 1.5/10 |
| Purposeful detail | 6.5/10 | 4.5/10 |
| Artistry & character | 5.0/10 | 3.0/10 |
| Materials & effects | 6.0/10 | 2.5/10 |
| Visual integrity | 6.0/10 | 6.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


MiMo-V2.6-Pro
This benchmark has not been assessed yet.
Nemotron 3 Ultra
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.


MiMo-V2.6-Pro
A coherent, cheerful cartoon with recognizable animals, readable steering contact and useful small details. The dog's orientation follows the craft more successfully than a wholly frontal pose would. Simple anatomy, weak raccoon grip and compressed seating contacts still limit physical credibility. Gradients and spray provide polish without resolving complex construction.
Nemotron 3 Ultra
The masked raccoon, dog and orange craft make the scene recognizable, with an appealing sunset palette. Overlapping bodies obscure the riding relationship, and the dog's connection to the controls remains unresolved. Weak water displacement, inconsistent shading and visible shape artifacts limit the finish. Ambiguous attachments do not establish detached limbs or inverted anatomy.
| Category | MiMo-V2.6-Pro | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 7.0/10 | 3.5/10 |
| Anatomy & construction | 5.0/10 | 1.5/10 |
| Space & placement | 5.5/10 | 4.5/10 |
| Light & reflections | 5.5/10 | 2.0/10 |
| Purposeful detail | 6.0/10 | 3.5/10 |
| Artistry & character | 4.0/10 | 1.5/10 |
| Materials & effects | 5.5/10 | 3.0/10 |
| Visual integrity | 4.5/10 | 2.0/10 |
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.


MiMo-V2.6-Pro
The distinctive bill, continuous silhouette and detailed wheels establish a readable pelican cyclist. Shaped feathers and soft shading add character, but jointless legs, crowded pedal contacts, absent steering contact and loosely directional lighting limit the construction. The comparisons support retaining the baseline category scores.
Nemotron 3 Ultra
A recognizable, playful pelican dominates a readable bicycle scene. Its bill and silhouette succeed, but feet below the pedals and confused drivetrain connections weaken the riding action. Local material modeling adds interest; overlapping contours, repetitive detail and inconsistent shadows leave the illustration basic and uneven.
| Category | MiMo-V2.6-Pro | Nemotron 3 Ultra |
|---|---|---|
| Task & likeness | 6.5/10 | 4.0/10 |
| Anatomy & construction | 5.0/10 | 3.5/10 |
| Space & placement | 6.0/10 | 3.5/10 |
| Light & reflections | 5.5/10 | 4.0/10 |
| Purposeful detail | 6.0/10 | 5.5/10 |
| Artistry & character | 6.0/10 | 4.0/10 |
| Materials & effects | 5.5/10 | 6.0/10 |
| Visual integrity | 6.0/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.