STEALTHMARK · HEAD TO HEAD

All comparisons ↗

MiMo-V2.6-Pro vs Qwen3.6-27B

MiMo-V2.6-Pro leads Qwen3.6-27B by 15.5 points on StealthMark, 47.9 to 32.4. It leads on 8 of 9 benchmarks, including both games, and Qwen3.6-27B on 1. 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

47.9/100Overall rank 21/53
32.4/100Overall rank 41/53

General Intelligence

44.3/100
25.6/100

Visual Intelligence

54.3/100
43.9/100

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

Open or local

Open modelMIT
Local modelOpen model · Apache-2.0

BENCHMARK BY BENCHMARK

Where each model leads

  • MiMo-V2.6-Pro
  • Qwen3.6-27B
  • Other models
  • Median

DATASHEET

Specs and pricing

MiMo-V2.6-Pro scores higher on StealthMark, is 4.1× cheaper per output token and runs 21% faster in our speed test. Both take about 1M tokens of context.

  • MiMo-V2.6-Pro
  • Qwen3.6-27B
  • Other models
  • Median
PricePer 1M output tokens, input below
MiMo-V2.6-Pro: $0.874.1× cheaper$0.43 inputQwen3.6-27B: $3.60$0.60 input
Context windowTokens per request, max output below
MiMo-V2.6-Pro: 1MTied128K max outputQwen3.6-27B: 1.01MTied64K max output
Output speedTokens per second, our measurement
MiMo-V2.6-Pro: 11621% fastertokens/sQwen3.6-27B: 96tokens/s
SizeTotal and active parameters
MiMo-V2.6-Pro: 1.02T42B activeQwen3.6-27B: 27BAll active
Developer
XiaomiQwen / Alibaba
Released
21 Sep 202622 Apr 2026
Origin
ChinaBoth
Input → output
Text, image, video, audio → textText, image, video → text
Architecture
Sparse Mixture-of-Experts; OpenRouter maps the route to the released Pro-RL checkpoint. The UltraSpeed edition is a separate routeDense causal language model with vision encoder; hybrid Gated DeltaNet and gated attention; MTP-trained

Full datasheets, every price and sourceMiMo-V2.6-Pro ↗Qwen3.6-27B ↗

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.

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

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

Qwen3.6-27B 37.8/100Rank 23/47

Survived 1 of 3
Foresight: complete playing field
Level 39 ptsTurn 20 / 20

Points per level

LevelMiMo-V2.6-ProQwen3.6-27B
Level 1Second Thoughts
4 ptsOut of lives
9 ptsOut of lives
Level 2Pressure Pot
9 ptsOut of lives
6 ptsOut of lives
Level 3Hide or Flight
19 ptsSurvived
9 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.

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

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

Qwen3.6-27B 28.5/100Rank 35/48

Cleared 3 of 5
Latch: complete playing field
Level 511 ptsTurn 25 / 40

Points per level

LevelMiMo-V2.6-ProQwen3.6-27B
Level 1Hold the door
5.2 ptsCleared
4.8 ptsCleared
Level 2Crossfeed
9 ptsClearedFinished early · 1 beacon left
8.8 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
17.2 ptsClearedFinished early · 1 beacon left
16.4 ptsClearedFinished early · 3 beacons left
Level 4Passing bay
16 ptsClearedFinished early · 3 beacons left
13.4 ptsFinished early
Level 5Second thoughts
20.4 ptsCleared
11 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

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.

Qwen3.6-27B

The artwork depicts a shaded sphere, distinct paint colors and a separate airborne black blob. Crimson's apex overlap does not establish its earlier interaction and transport, while cyan's recent contact remains unsupported. Horizontal centering supplies limited camera agreement, but the sphere, black blob and prominent panel have substantial placement or projection departures. A few planar echoes provide reflection evidence; isolated patches and gradients replace most of the required mirror structure.

Score breakdown

CategoryMiMo-V2.6-ProQwen3.6-27B
State at 600 ms23.0/255.0/25
Camera and placement12.0/155.0/15
Reflections19.0/1208.0/120
Materials and scale7.5/104.0/10
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

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.

Qwen3.6-27B

An appealing decorative illustration with coordinated ornament, flowing panels and three glowing orbital lights. The arm arrangement reverses the requested sides. Uncertain neck continuity, concealed leg articulation, simplified paws, crowded chest jewelry and shallow surface modeling limit pose clarity and finish.

Score breakdown

CategoryMiMo-V2.6-ProQwen3.6-27B
Task & likeness6.5/106.5/10
Anatomy & construction5.0/105.0/10
Space & placement5.5/106.5/10
Light & reflections6.5/105.5/10
Purposeful detail6.5/106.0/10
Artistry & character5.0/105.0/10
Materials & effects6.5/105.0/10
Visual integrity6.0/107.0/10

Benchmark task

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.

Qwen3.6-27B

A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.

Mona Lisa

Same task instructions

Precise visual recall and portrait reconstruction.

The judgment

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.

Qwen3.6-27B

The portrait loosely evokes Mona Lisa through its palette and silhouette. Readable pupils, brows and lips provide limited detail, and the torso remains continuous. The frontal elongated face, unresolved chest-level limb forms, shallow landscape and pervasive blur substantially weaken likeness, anatomy and finish.

Score breakdown

CategoryMiMo-V2.6-ProQwen3.6-27B
Task & likeness3.5/102.5/10
Anatomy & construction3.5/103.0/10
Space & placement4.0/104.0/10
Light & reflections5.0/104.0/10
Purposeful detail3.0/102.5/10
Artistry & character4.0/102.5/10
Materials & effects4.0/103.0/10
Visual integrity6.0/104.0/10

Benchmark task

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

Beach

Same task instructions

Creativity, perspective and visual beauty.

The judgment

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.

Qwen3.6-27B

A recognizable sunset beach with balanced palms, clean shapes and effective warm–cool contrast. Small animals and play equipment address the brief, but rudimentary anatomy, uncertain water contacts, sparse reflections and flat materials keep the drawing basic or uneven.

Score breakdown

CategoryMiMo-V2.6-ProQwen3.6-27B
Task & likeness8.5/107.5/10
Anatomy & construction5.0/105.0/10
Space & placement6.0/105.5/10
Light & reflections6.5/105.5/10
Purposeful detail6.5/104.5/10
Artistry & character5.0/105.5/10
Materials & effects6.0/105.5/10
Visual integrity6.0/107.0/10

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

MiMo-V2.6-Pro

This benchmark has not been assessed yet.

Qwen3.6-27B

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

Same task instructions

Scene composition and interacting subjects.

The judgment

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.

Qwen3.6-27B

A readable cartoon with balanced colors, clean shapes and a clearly supported raccoon. Continuous body construction and modest shading deserve credit. Rudimentary limbs, unresolved steering connections, stiff gestures and schematic water effects limit physical credibility and finish.

Score breakdown

CategoryMiMo-V2.6-ProQwen3.6-27B
Task & likeness7.0/104.5/10
Anatomy & construction5.0/103.5/10
Space & placement5.5/106.0/10
Light & reflections5.5/105.5/10
Purposeful detail6.0/105.5/10
Artistry & character4.0/104.0/10
Materials & effects5.5/105.5/10
Visual integrity4.5/102.5/10

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

Same task instructions

Subject construction and spatial relationships.

The judgment

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.

Qwen3.6-27B

A lively, coherent illustration with recognizable pelican features, purposeful accessories and useful surface variation. Ambiguous neck layering, uncertain pedal engagement and an unresolved drivetrain limit construction. Aligned wheels and layered scenery establish placement, while inconsistent shadow direction and crowded overlaps constrain finish.

Score breakdown

CategoryMiMo-V2.6-ProQwen3.6-27B
Task & likeness6.5/107.5/10
Anatomy & construction5.0/104.0/10
Space & placement6.0/106.5/10
Light & reflections5.5/105.0/10
Purposeful detail6.0/106.5/10
Artistry & character6.0/105.5/10
Materials & effects5.5/106.5/10
Visual integrity6.0/106.5/10

Benchmark task

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