STEALTHMARK · HEAD TO HEAD

All comparisons ↗

MAI-Thinking-1 vs MiMo-V2.6-Pro

MiMo-V2.6-Pro leads MAI-Thinking-1 by 33.8 points on StealthMark, 47.9 to 14.1. 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 ↘
All results ↗
All results ↗

Overall StealthMark

14.1/100Overall rank 51/53
47.9/100Overall rank 21/53

General Intelligence

7.4/100
44.3/100

Visual Intelligence

24.6/100
54.3/100

Reasoning efficiency

On every task, result quality and reasoning tokens are each compared with all measured models and weighed equally. Each dot is one model.

Single-step reasoning Result quality weighed against reasoning tokens on a single problem

Multi-step reasoning Result quality weighed against reasoning tokens across connected steps, as in agentic workflows

  • MAI-Thinking-1Single-step reasoning not measured

Open or local

Open modelMIT

BENCHMARK BY BENCHMARK

Where each model leads

  • MAI-Thinking-1
  • MiMo-V2.6-Pro
  • Other models
  • Median

DATASHEET

Specs and pricing

MiMo-V2.6-Pro scores higher on StealthMark, is 9.2× cheaper per output token, takes 4.1× more context and runs 24% faster in our speed test.

  • MAI-Thinking-1
  • MiMo-V2.6-Pro
  • Other models
  • Median
PricePer 1M output tokens, input below
MAI-Thinking-1: $8$2 inputMiMo-V2.6-Pro: $0.879.2× cheaper$0.43 input
Context windowTokens per request, max output below
MAI-Thinking-1: 256K64K max outputEstimatedMiMo-V2.6-Pro: 1M4.1× larger128K max output
Output speedTokens per second, our measurement
MAI-Thinking-1: 93tokens/sMiMo-V2.6-Pro: 11624% fastertokens/s
SizeTotal and active parameters
MAI-Thinking-1: 1T35B activeEstimatedMiMo-V2.6-Pro: 1.02T42B active
Developer
Microsoft AIXiaomi
Released
12 Aug 202621 Sep 2026
Origin
United StatesChina
Input → output
Text → textText, image, video, audio → text
Architecture
Sparse Mixture-of-Experts (MoE)Sparse Mixture-of-Experts; OpenRouter maps the route to the released Pro-RL checkpoint. The UltraSpeed edition is a separate route

Full datasheets, every price and sourceMAI-Thinking-1 ↗MiMo-V2.6-Pro ↗

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.

MAI-Thinking-1 6.4/100Rank 44/47

Survived 0 of 3
Foresight: complete playing field
Level 31 ptsTurn 8 / 20

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

Survived 1 of 3
Foresight: complete playing field
Level 319 ptsTurn 20 / 20

Points per level

LevelMAI-Thinking-1MiMo-V2.6-Pro
Level 1Second Thoughts
3 ptsOut of lives
4 ptsOut of lives
Level 2Pressure Pot
3 ptsOut of lives
9 ptsOut of lives
Level 3Hide or Flight
1 ptsOut of lives
19 ptsSurvived

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.

MAI-Thinking-1 3.6/100Rank 44/48

Cleared 1 of 5
Latch: complete playing field
Level 511.8 ptsTurn 16 / 40

MiMo-V2.6-Pro 52.6/100Rank 22/48

Cleared 5 of 5
Latch: complete playing field
Level 520.4 ptsTurn 28 / 40

Points per level

LevelMAI-Thinking-1MiMo-V2.6-Pro
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
2 ptsOut of turns
9 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
2.2 ptsFinished early
17.2 ptsClearedFinished early · 1 beacon left
Level 4Passing bay
3 ptsFinished early
16 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
11.8 ptsFinished early
20.4 ptsCleared

Newton's Mirror

Same task instructions

Physics, perspective and recursive reflections, tested together. Explore the test ↗

The judgment

MAI-Thinking-1

The small paint features and convex shading deserve moderate material credit. The sphere remains undersized and low, with black unusually close to its apex. Crimson and cyan do not establish the required impact histories. Faint reflected echoes supply limited optical evidence, while the defining recursive room, nested sphere and emitter structures remain unestablished.

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.

Score breakdown

CategoryMAI-Thinking-1MiMo-V2.6-Pro
State at 600 ms3.0/2523.0/25
Camera and placement2.5/1512.0/15
Reflections4.0/12019.0/120
Materials and scale2.0/107.5/10
Floor-damage reward0.0/100.0/10

Benchmark task

A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.

Selfie

Different task instructions

Visual construction and creative interpretation.

The judgment

MAI-Thinking-1

A recognizable lantern-and-moth illustration with appealing coloured wings and tidy outer contours. Simple construction, a small focal subject and crowded overlaps limit character and depth. The face, six-leg anatomy, seedling and antenna-driven watering joke remain insufficiently readable.

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.

Score breakdown

CategoryMAI-Thinking-1MiMo-V2.6-Pro
Task & likeness4.0/106.5/10
Anatomy & construction4.5/105.0/10
Space & placement5.0/105.5/10
Light & reflections4.5/106.5/10
Purposeful detail4.0/106.5/10
Artistry & character5.0/105.0/10
Materials & effects5.0/106.5/10
Visual integrity6.0/106.0/10

Benchmark task

MAI-Thinking-1

A fluffy moth tends a lantern greenhouse amid a gardening mishap. The scene tests insect anatomy, expressive action, translucent wings and the interaction of light with small objects.

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.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

MAI-Thinking-1

A recognizable Mona Lisa motif emerges from dark hair, a pale face and a landscape band. Replication remains weak: the oversized frontal head, broad smile, unresolved torso and missing crossed-hand anatomy diverge substantially from the reference. Simple fills and sparse strokes provide limited volume, material definition or painterly complexity.

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.

Score breakdown

CategoryMAI-Thinking-1MiMo-V2.6-Pro
Task & likeness1.0/103.5/10
Anatomy & construction0.5/103.5/10
Space & placement1.0/104.0/10
Light & reflections1.5/105.0/10
Purposeful detail1.0/103.0/10
Artistry & character1.5/104.0/10
Materials & effects0.5/104.0/10
Visual integrity3.0/106.0/10

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

Beach

Different task instructions

Creativity, perspective and visual beauty.

The judgment

MAI-Thinking-1

A coherent, cheerful beach scene with balanced placement, clean shapes and controlled sunset colours. Animals, birds and playful accessories are recognizable, but basic dolphin construction, weak grounding, schematic reflections and sparse material detail limit the drawing's accomplishment.

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.

Score breakdown

CategoryMAI-Thinking-1MiMo-V2.6-Pro
Task & likeness6.0/108.5/10
Anatomy & construction4.0/105.0/10
Space & placement5.0/106.0/10
Light & reflections4.0/106.5/10
Purposeful detail4.5/106.5/10
Artistry & character4.0/105.0/10
Materials & effects3.5/106.0/10
Visual integrity4.5/106.0/10

Benchmark task

A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.

Ground Truth

Same task instructions

Physical reasoning, light and visual reconstruction.

The judgment

MAI-Thinking-1

This benchmark has not been assessed yet.

MiMo-V2.6-Pro

This benchmark has not been assessed yet.

Benchmark task

A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.

Raccoon

Different task instructions

Scene composition and interacting subjects.

The judgment

MAI-Thinking-1

The recognizable raccoon and clean, shaded forms make a readable cartoon. The dog's steering remains undemonstrated, while ambiguous seating contacts and a minimally constructed craft weaken the central interaction. Controlled gradients and edges deserve credit, but anatomy, purposeful detail and water displacement remain basic.

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.

Score breakdown

CategoryMAI-Thinking-1MiMo-V2.6-Pro
Task & likeness3.0/107.0/10
Anatomy & construction2.0/105.0/10
Space & placement5.0/105.5/10
Light & reflections3.5/105.5/10
Purposeful detail3.0/106.0/10
Artistry & character2.5/104.0/10
Materials & effects3.5/105.5/10
Visual integrity5.5/104.5/10

Benchmark task

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.

Pelican

Different task instructions

Subject construction and spatial relationships.

The judgment

MAI-Thinking-1

A recognizable pelican and bicycle combine clean rounded forms, expressive facial details and effective surface shading. Aligned wheels and soft shadows establish placement, but unresolved pedal engagement, absent steering contact and sparse drivetrain construction weaken the riding action. Limited feather complexity and shallow space constrain an otherwise appealing illustration.

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.

Score breakdown

CategoryMAI-Thinking-1MiMo-V2.6-Pro
Task & likeness7.0/106.5/10
Anatomy & construction4.5/105.0/10
Space & placement5.5/106.0/10
Light & reflections7.0/105.5/10
Purposeful detail5.0/106.0/10
Artistry & character5.0/106.0/10
Materials & effects4.5/105.5/10
Visual integrity7.0/106.0/10

Benchmark task

A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.