STEALTHMARK · HEAD TO HEAD

All comparisons ↗

MiniMax M3.1 Flash vs Qwen3.8-27B

Qwen3.8-27B leads MiniMax M3.1 Flash by 5.8 points on StealthMark, 51.7 to 45.9. It leads on 5 of 9 benchmarks, including both games, and MiniMax M3.1 Flash on 4. Qwen3.8-27B 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

45.9/100Overall rank 24/53
51.7/100Overall rank 14/53

General Intelligence

35.8/100
46.2/100

Visual Intelligence

62.6/100
61.4/100

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

Local modelOpen model · Apache-2.0

BENCHMARK BY BENCHMARK

Where each model leads

  • MiniMax M3.1 Flash
  • Qwen3.8-27B
  • Other models
  • Median

DATASHEET

Specs and pricing

Both take about 1M tokens of context.

  • MiniMax M3.1 Flash
  • Qwen3.8-27B
  • Other models
  • Median
PricePer 1M output tokens, input below
MiniMax M3.1 Flash: No list priceQwen3.8-27B: $1.70$0.42 input
Context windowTokens per request, max output below
MiniMax M3.1 Flash: 1MTiedQwen3.8-27B: 1MTied128K max output
Output speedTokens per second, our measurement
MiniMax M3.1 Flash: Not measuredQwen3.8-27B: 78tokens/s
SizeTotal and active parameters
MiniMax M3.1 Flash: 428B23B activeQwen3.8-27B: 27BAll activeEstimated
Developer
MiniMaxQwen
Released
Not published14 Aug 2026
Origin
Not publishedChina
Input → output
Text, image, video → textBoth
Architecture
Mixture-of-Experts with MiniMax Sparse Attention and native multimodal encoderDense causal language model with vision encoder; hybrid Gated DeltaNet and gated attention; MTP-trained

Full datasheets, every price and sourceMiniMax M3.1 Flash ↗Qwen3.8-27B ↗

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.

MiniMax M3.1 Flash 30.7/100Rank 28/47

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

Qwen3.8-27B 63.0/100Rank 7/47

Survived 1 of 3
Foresight: complete playing field
Level 311 ptsTurn 16 / 20

Points per level

LevelMiniMax M3.1 FlashQwen3.8-27B
Level 1Second Thoughts
6 ptsOut of lives
26 ptsSurvived
Level 2Pressure Pot
5 ptsOut of lives
12 ptsOut of lives
Level 3Hide or Flight
9 ptsSurvived
11 ptsOut of lives

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.

MiniMax M3.1 Flash 21.9/100Rank 38/48

Cleared 2 of 5
Latch: complete playing field
Level 517.2 ptsTurn 24 / 40

Qwen3.8-27B 38.6/100Rank 28/48

Cleared 2 of 5
Latch: complete playing field
Level 515.8 ptsTurn 31 / 40

Points per level

LevelMiniMax M3.1 FlashQwen3.8-27B
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
8.6 ptsClearedFinished early · 1 beacon left
9.8 ptsCleared
Level 3Relay vault
5 ptsOut of turns
11.2 ptsFinished early
Level 4Passing bay
4.4 ptsFinished early
13.2 ptsFinished early
Level 5Second thoughts
17.2 ptsFinished early
15.8 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

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.

Qwen3.8-27B

The room fills the complete 16:9 frame without visible borders or labels. Central placement fits the wider frame, and the paint colors follow the expected vertical order. Bilateral side images, diminishing echoes and an overlapping floor image provide limited mirror depth. Broad sphere surfaces lack ordered nested room imagery, while planar panel sequences and outer chains remain missing or unresolved. Soft highlights do not establish emitter mapping, while paint attachment and transport history are only partly supported.

Score breakdown

CategoryMiniMax M3.1 FlashQwen3.8-27B
State at 600 ms20.0/2523.0/25
Camera and placement10.0/1513.0/15
Reflections24.0/12024.0/120
Materials and scale8.0/106.5/10
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

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.

Qwen3.8-27B

A cohesive emerald-and-gold illustration with a gentle expression, flowing robes, luminous halo and three clearly ringed orbs. Limbs remain connected, and the asymmetric legs communicate floating. The rounded face reads somewhat bear-like; the raised palm faces outward rather than upward, and chest-hand fingers are crowded. Clean ornamentation exceeds the comparatively simple anatomical modeling and shading.

Score breakdown

CategoryMiniMax M3.1 FlashQwen3.8-27B
Task & likeness7.5/108.0/10
Anatomy & construction6.0/107.5/10
Space & placement7.0/108.0/10
Light & reflections6.0/107.5/10
Purposeful detail5.0/108.0/10
Artistry & character6.0/107.5/10
Materials & effects7.0/107.5/10
Visual integrity6.0/108.5/10

Benchmark task

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.

Qwen3.8-27B

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

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

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.

Qwen3.8-27B

The centered portrait, dark clothing and overlapping hands evoke the Mona Lisa, but replication is weak. The face is excessively elongated, the eyes stare broadly, and the hands reduce to rounded masses with shallow finger marks. Soft shading creates some volume, while the landscape remains indistinct. The precise gold frame is more resolved than the portrait.

Score breakdown

CategoryMiniMax M3.1 FlashQwen3.8-27B
Task & likeness4.0/104.0/10
Anatomy & construction4.5/104.5/10
Space & placement5.5/104.5/10
Light & reflections4.5/105.0/10
Purposeful detail5.5/105.0/10
Artistry & character6.0/105.0/10
Materials & effects5.5/105.0/10
Visual integrity5.5/105.0/10

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

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.

Qwen3.8-27B

The sweeping palm, glowing sunset and purple-to-orange palette create an appealing beach composition. Birds, animals and reflections fulfill the brief, with clean silhouettes and readable small accents. Schematic anatomy, repetitive shoreline geometry and limited perspective integration constrain depth. Foreground lighting and uniform reflection bars provide atmosphere but little physical coherence.

Score breakdown

CategoryMiniMax M3.1 FlashQwen3.8-27B
Task & likeness8.5/108.5/10
Anatomy & construction7.0/106.5/10
Space & placement7.5/106.0/10
Light & reflections6.0/106.0/10
Purposeful detail8.0/107.0/10
Artistry & character6.5/107.0/10
Materials & effects6.5/106.5/10
Visual integrity7.5/107.0/10

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

MiniMax M3.1 Flash

This benchmark has not been assessed yet.

Qwen3.8-27B

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

Different task instructions

Scene composition and interacting subjects.

The judgment

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.

Qwen3.8-27B

The raccoon clearly rides on the dog's back, and the dog reaches the jet ski's steering grip. Cheerful expressions, a bright palette and sweeping wake make the action readable. Anatomy and machinery remain simplified, with overlapping paws and limited seat definition. Flat lighting, sparse surface detail and broad white splash shapes limit depth and finish. A clipped gray fragment interrupts the upper-left corner.

Score breakdown

CategoryMiniMax M3.1 FlashQwen3.8-27B
Task & likeness9.0/108.5/10
Anatomy & construction8.0/106.5/10
Space & placement8.0/107.0/10
Light & reflections6.0/105.5/10
Purposeful detail7.5/106.5/10
Artistry & character7.5/106.5/10
Materials & effects7.0/106.5/10
Visual integrity8.0/107.5/10

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

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.

Qwen3.8-27B

The pelican’s oversized bill, straw hat and flowing scarf create a distinctive focal character against a well-composed coastal sunset. Wheels and frame are readable, but the wings do not reach the steering, overlapping legs obscure separate pedal contacts, and the crank linkage is unclear. Clean vector shapes and restrained shading support an appealing illustration with limited physical depth.

Score breakdown

CategoryMiniMax M3.1 FlashQwen3.8-27B
Task & likeness8.5/108.0/10
Anatomy & construction6.5/105.5/10
Space & placement8.0/107.0/10
Light & reflections7.0/107.0/10
Purposeful detail7.5/107.5/10
Artistry & character6.5/107.5/10
Materials & effects7.0/106.5/10
Visual integrity6.5/108.0/10

Benchmark task

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