STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Inkling-Small vs MiMo-V2.6-Flash

MiMo-V2.6-Flash leads Inkling-Small by 17.0 points on StealthMark, 44.6 to 27.6. It leads on 7 of 9 benchmarks, including Latch, and Inkling-Small on 2, including Foresight. MiMo-V2.6-Flash scores higher on Beach, with its largest category advantage in anatomy & construction.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

27.6/100Overall rank 43/53
44.6/100Overall rank 28/53

General Intelligence

25.5/100
41.0/100

Visual Intelligence

31.1/100
49.8/100

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

  • Inkling-Small

Open or local

Open modelApache 2.0
Open modelMIT

BENCHMARK BY BENCHMARK

Where each model leads

  • Inkling-Small
  • MiMo-V2.6-Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

Both take about 1M tokens of context.

  • Inkling-Small
  • MiMo-V2.6-Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
Inkling-Small: No list priceMiMo-V2.6-Flash: $0.28$0.14 input
Context windowTokens per request, max output below
Inkling-Small: 1MTiedMiMo-V2.6-Flash: 1MTied128K max output
Output speedTokens per second, our measurement
Inkling-Small: Not measuredMiMo-V2.6-Flash: 547tokens/s
SizeTotal and active parameters
Inkling-Small: 276B12B activeMiMo-V2.6-Flash: 309B15B active
Developer
Thinking Machines LabXiaomi
Released
Not published21 Sep 2026
Origin
Not publishedChina
Input → output
Text, image, audio → textText, image, video, audio → text
Architecture
42-layer decoder-only transformer with sparse mixture-of-experts feed-forward (6 of 256 routed experts plus 2 shared per token); hybrid local and global attention; natively multimodal with a hierarchical patch image encoder and discrete-token audioReleased Flash-RL checkpoint: sparse Mixture-of-Experts; hosted Flash and MOPD variants are distinct artifacts

Full datasheets, every price and sourceInkling-Small ↗MiMo-V2.6-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.

Inkling-Small 30.2/100Rank 29/49

Survived 0 of 3
Foresight: complete playing field
Level 38 ptsTurn 17 / 20

MiMo-V2.6-Flash 71.3/100Rank 37/491 of 3 levels

1 of 3 played
Foresight: complete playing field
Level 212 ptsTurn 14 / 18

Points per level

LevelInkling-SmallMiMo-V2.6-Flash
Level 1Second Thoughts
9 ptsOut of lives
Pending
Level 2Pressure Pot
6 ptsOut of lives
12 ptsOut of lives
Level 3Hide or Flight
8 ptsOut of lives
Not played

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.

Inkling-Small 34.7/100Rank 34/50

Cleared 3 of 5
Latch: complete playing field
Level 518 ptsTurn 40 / 40

MiMo-V2.6-Flash 66.3/100Rank 29/503 of 5 levels

3 of 5 played
Latch: complete playing field
Level 318 ptsTurn 36 / 36

Points per level

LevelInkling-SmallMiMo-V2.6-Flash
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
9.6 ptsCleared
Level 3Relay vault
2.8 ptsFinished early
18 ptsCleared
Level 4Passing bay
8 ptsFinished early
Pending
Level 5Second thoughts
18 ptsCleared
Not played

Newton's Mirror

Same task instructions

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

The judgment

Inkling-Small

The sphere's apparent floor support, separate dark feature and broad paint ordering justify partial state credit. The major weakness is the largely missing mirror system: isolated side images and faint floor echoes do not establish repeated virtual rooms or curved spherical mapping. Downward framing, the oversized frontal panel, unresolved paint transport and satin surface appearance remain distinct limitations.

MiMo-V2.6-Flash

The faint lower sphere image provides limited reflection evidence through reversed paint-color ordering. The wider reflection system and nested room imagery are absent. The colored beads do not resolve the required impact and transport history, while displaced paint positions and weak material rendering further limit the result.

Score breakdown

CategoryInkling-SmallMiMo-V2.6-Flash
State at 600 ms14.0/255.0/25
Camera and placement3.0/154.5/15
Reflections8.0/1206.5/120
Materials and scale2.5/102.5/10
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

Inkling-Small

The faces and dripping caps communicate a cute mushroom scene, but simple construction and weak spatial relationships limit the result. The defining foot-stamping action is unresolved, the flattering portrait is smaller than its painter, and the requested material contrasts are only partly conveyed.

MiMo-V2.6-Flash

The centered rabbit has an appealing alert expression, a balanced silhouette, and a restrained technological palette. Outfit panels and orbital accents are cleanly resolved. The orb-holding paw has an ambiguous grip, the ears lack distinct angular bends, and the halo's interlocking construction is unclear. Soft shading suggests volume, but materials and spatial depth remain simplified.

Score breakdown

CategoryInkling-SmallMiMo-V2.6-Flash
Task & likeness2.5/108.0/10
Anatomy & construction1.5/106.5/10
Space & placement3.5/107.0/10
Light & reflections3.0/107.0/10
Purposeful detail4.5/106.0/10
Artistry & character3.0/105.5/10
Materials & effects3.5/106.5/10
Visual integrity2.0/108.0/10

Benchmark task

Inkling-Small

Character scenes test expression, anatomy, materials and coherent visual construction.

MiMo-V2.6-Flash

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

Inkling-Small

A recognizable but rudimentary Mona Lisa interpretation. Facial shading and subdued colors provide coherence, while the frontal blocklike torso, unresolved wrists, fingerless hands and shallow landscape substantially limit likeness, construction and finish.

MiMo-V2.6-Flash

The dark clothing, long hair, folded hands and hazy landscape make the reference recognizable. Replication is limited by the frontal symmetry, elongated face, wide staring eyes and downturned mouth. Both arms connect to the hands, but the overlapping palms and looplike fingers are poorly resolved. Soft facial shading provides some volume; the clothing and landscape remain broad, simplified shapes.

Score breakdown

CategoryInkling-SmallMiMo-V2.6-Flash
Task & likeness2.5/103.0/10
Anatomy & construction2.5/102.5/10
Space & placement3.0/104.0/10
Light & reflections2.5/103.0/10
Purposeful detail2.0/104.0/10
Artistry & character2.5/102.5/10
Materials & effects2.0/103.5/10
Visual integrity3.0/105.5/10

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

Inkling-Small

A recognizable sunset beach with a clear focal sun and appealing color transitions. Connected fish silhouettes and layered scenery establish basic coherence. Primitive figures, ambiguous recreation, sparse descriptive detail and weak grounding limit construction and depth. The aligned reflection supplies a useful lighting cue, but shadows and material effects remain underdeveloped.

MiMo-V2.6-Flash

The warm sunset, aligned reflection, framing palms and playful beach animals create an appealing, coherent scene. Small toys and shells remain readable. Drawing is simplified: animals have limited volume, water uses repetitive horizontal strokes, and foreground shadows do not consistently follow the central sun. Clean execution supports a competent illustration, but depth and material rendering remain modest.

Score breakdown

CategoryInkling-SmallMiMo-V2.6-Flash
Task & likeness3.5/107.5/10
Anatomy & construction3.0/106.5/10
Space & placement3.0/107.0/10
Light & reflections3.0/106.0/10
Purposeful detail3.0/107.0/10
Artistry & character3.0/106.0/10
Materials & effects2.5/106.0/10
Visual integrity2.0/108.0/10

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

Inkling-Small

This benchmark has not been assessed yet.

MiMo-V2.6-Flash

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

Inkling-Small

Recognizable animals, readable accessories and an appealing sunset support a coherent basic cartoon. Rounded construction leaves joints, riding support and steering unresolved. Decorative gradients contribute atmosphere, but directional lighting, distinct materials and convincing water displacement are weakly demonstrated.

MiMo-V2.6-Flash

The raccoon riding the dog reads clearly, with expressive faces and a cheerful waterscape. The steering action is weak: no paw reaches the handlebar, which meets the dog's muzzle. The vehicle resembles a thin board with a steering post. Overlapping limbs obscure anatomy, while limited shadows, reflections and surface modeling keep the scene flat.

Score breakdown

CategoryInkling-SmallMiMo-V2.6-Flash
Task & likeness4.0/106.5/10
Anatomy & construction3.0/104.0/10
Space & placement4.0/106.5/10
Light & reflections5.0/104.5/10
Purposeful detail5.5/105.5/10
Artistry & character4.0/104.0/10
Materials & effects5.0/105.5/10
Visual integrity5.0/106.0/10

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

Inkling-Small

The pelican is immediately recognizable, and its sweeping neck, shaped bill and orderly spokes provide character. Riding remains only partially realized: legs, pedal engagement, steering and seat support cannot be read confidently. Controlled graphic effects add atmosphere, but simplified construction and weak grounding keep the result basic.

MiMo-V2.6-Flash

The pelican is immediately recognizable, with an expressive eye and prominent pouch, and the landscape provides clear framing. Clean outlines and spokes support the cheerful illustration. Both feet visibly miss the bicycle's pedal mechanism, weakening the riding action. Simplified machinery, shallow depth and loosely directional shading limit the requested masterpiece quality.

Score breakdown

CategoryInkling-SmallMiMo-V2.6-Flash
Task & likeness4.0/108.0/10
Anatomy & construction3.0/105.5/10
Space & placement3.0/107.0/10
Light & reflections3.0/106.0/10
Purposeful detail4.5/107.0/10
Artistry & character5.0/106.5/10
Materials & effects4.5/105.5/10
Visual integrity3.0/107.5/10

Benchmark task

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