STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek-V4.1-Flash vs MiniMax M3.1 Flash

DeepSeek-V4.1-Flash leads MiniMax M3.1 Flash by 4.1 points on StealthMark, 50.0 to 45.9. It leads on 5 of 9 benchmarks, including both games, and MiniMax M3.1 Flash on 4. DeepSeek-V4.1-Flash scores higher on Newton's Mirror, with its largest category advantage in reflections.

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All results ↗
All results ↗

Overall StealthMark

50.0/100Overall rank 16/53
45.9/100Overall rank 24/53

General Intelligence

48.5/100
35.8/100

Visual Intelligence

53.0/100
62.6/100

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

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek-V4.1-Flash
  • MiniMax M3.1 Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

Both take about 1M tokens of context.

  • DeepSeek-V4.1-Flash
  • MiniMax M3.1 Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
DeepSeek-V4.1-Flash: $1.13$0.28 inputMiniMax M3.1 Flash: No list price
Context windowTokens per request, max output below
DeepSeek-V4.1-Flash: 1MTied384K max outputMiniMax M3.1 Flash: 1MTied
Output speedTokens per second, our measurement
DeepSeek-V4.1-Flash: 242tokens/sMiniMax M3.1 Flash: Not measured
SizeTotal and active parameters
DeepSeek-V4.1-Flash: 763B16B activeMiniMax M3.1 Flash: 428B23B active
Developer
DeepSeek-AIMiniMax
Released
10 Sep 2026Not published
Origin
ChinaNot published
Input → output
Text, image → textText, image, video → text
Architecture
20-layer encoder + 20-layer decoder with CSA2, Single-Pass mHC, Engram n-gram memory and DSpark/MTPMixture-of-Experts with MiniMax Sparse Attention and native multimodal encoder

Full datasheets, every price and sourceDeepSeek-V4.1-Flash ↗MiniMax M3.1 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.

DeepSeek-V4.1-Flash 55.4/100Rank 12/47

Survived 1 of 3
Foresight: complete playing field
Level 318 ptsTurn 20 / 20

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

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

Points per level

LevelDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Level 1Second Thoughts
16 ptsOut of lives
6 ptsOut of lives
Level 2Pressure Pot
7 ptsOut of lives
5 ptsOut of lives
Level 3Hide or Flight
18 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.

DeepSeek-V4.1-Flash 65.2/100Rank 19/48

Cleared 5 of 5
Latch: complete playing field
Level 520.6 ptsTurn 27 / 40

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

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

Points per level

LevelDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9 ptsCleared
8.6 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
17.2 ptsClearedFinished early · 3 beacons left
5 ptsOut of turns
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
4.4 ptsFinished early
Level 5Second thoughts
20.6 ptsCleared
17.2 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

DeepSeek-V4.1-Flash

The first wall and floor images provide limited reflection geometry, but the room's mirror recurrence is substantially incomplete, particularly the outer-edge chains and lateral sightlines. The main sphere and its large reflected images lack ordered, curved room and virtual-sphere imagery. Repeated emitter mapping is missing from both planar mirrors and spherical surfaces.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashMiniMax M3.1 Flash
State at 600 ms23.5/2520.0/25
Camera and placement13.5/1510.0/15
Reflections30.0/12024.0/120
Materials and scale8.0/108.0/10
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

DeepSeek-V4.1-Flash

Expressive faces, cobalt coloring and a flowing diagonal composition make the mutual inspection charming. Execution is uneven: the long pointed flipper lacks a convincing grip, the enlarged shrimp face appears detached from its body, and the large lens is oval. Flat anatomical shading and an unexplained purple ringed patch beneath the whale weaken the requested polished depth.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Task & likeness7.0/107.5/10
Anatomy & construction6.5/106.0/10
Space & placement6.5/107.0/10
Light & reflections6.0/106.0/10
Purposeful detail7.0/105.0/10
Artistry & character7.5/106.0/10
Materials & effects7.0/107.0/10
Visual integrity7.0/106.0/10

Benchmark task

DeepSeek-V4.1-Flash

A whale and a tiny shrimp examine one another through bubble lenses, with an octopus nearby. The scene tests interacting characters, differences in scale and transparent materials.

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.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

DeepSeek-V4.1-Flash

The centered portrait, dark hair, crossed hands and muted landscape make the reference recognizable. Replication is limited by the frontal pose, staring eyes and weakly defined smile. Hands are overlapping oval masses with almost no finger articulation, while wrists disappear into sleeves. Soft gradients suggest volume, but broad, indistinct surfaces and faint stray lines leave the drawing basic and uneven.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Task & likeness3.5/104.0/10
Anatomy & construction3.0/104.5/10
Space & placement4.5/105.5/10
Light & reflections4.5/104.5/10
Purposeful detail3.0/105.5/10
Artistry & character4.0/106.0/10
Materials & effects3.0/105.5/10
Visual integrity5.5/105.5/10

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

DeepSeek-V4.1-Flash

The glowing sunset, silhouetted palm and playful foreground create a coherent, appealing beach illustration. Birds, crab, boat and reflections fulfill the brief. The airborne animals have weakly defined anatomy and little convincing splash interaction. Broad, blurred reflections and largely flat surfaces limit depth and finish.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Task & likeness8.0/108.5/10
Anatomy & construction5.5/107.0/10
Space & placement6.5/107.5/10
Light & reflections6.5/106.0/10
Purposeful detail5.5/108.0/10
Artistry & character5.0/106.5/10
Materials & effects6.0/106.5/10
Visual integrity5.5/107.5/10

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

DeepSeek-V4.1-Flash

This benchmark has not been assessed yet.

MiniMax M3.1 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

Different task instructions

Scene composition and interacting subjects.

The judgment

DeepSeek-V4.1-Flash

The sunset palette and silhouetted grouping establish an appealing scene. A masked rider sits above a pointed-eared dog, but merged body shapes leave limbs and support unresolved. The boatlike craft lacks readable steering controls, so the requested action is unclear. Sparse facial marks and glowing spray dots offer limited detail.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Task & likeness5.0/109.0/10
Anatomy & construction4.0/108.0/10
Space & placement5.5/108.0/10
Light & reflections6.0/106.0/10
Purposeful detail3.5/107.5/10
Artistry & character4.0/107.5/10
Materials & effects5.0/107.0/10
Visual integrity6.0/108.0/10

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

Different task instructions

Subject construction and spatial relationships.

The judgment

DeepSeek-V4.1-Flash

A recognizable pelican rides a brightly colored bicycle against a striking sunset. The sweeping bill, trailing scarf and circular wheels create a controlled composition. Both legs connect, but pedal linkage, body support and the wing's handlebar grip remain loosely resolved. Clean vector shapes and feather details work well; simplified shading limits volume and integration with the sunset light.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashMiniMax M3.1 Flash
Task & likeness8.5/108.5/10
Anatomy & construction7.0/106.5/10
Space & placement7.5/108.0/10
Light & reflections7.0/107.0/10
Purposeful detail6.5/107.5/10
Artistry & character8.0/106.5/10
Materials & effects7.0/107.0/10
Visual integrity8.0/106.5/10

Benchmark task

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