STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Grok 4.7 vs MiniMax M3.1 Flash

Grok 4.7 leads MiniMax M3.1 Flash by 1.3 points on StealthMark, 47.2 to 45.9. MiniMax M3.1 Flash leads on 6 of 9 benchmarks and Grok 4.7 on 3, including both games. MiniMax M3.1 Flash scores higher on Ground Truth.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

47.2/100Overall rank 22/53
45.9/100Overall rank 24/53

General Intelligence

48.4/100
35.8/100

Visual Intelligence

44.8/100
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

  • Grok 4.7

BENCHMARK BY BENCHMARK

Where each model leads

  • Grok 4.7
  • MiniMax M3.1 Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

Grok 4.7 scores higher on StealthMark. MiniMax M3.1 Flash takes 2× more context.

  • Grok 4.7
  • MiniMax M3.1 Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
Grok 4.7: $6$2 inputMiniMax M3.1 Flash: No list price
Context windowTokens per request, max output below
Grok 4.7: 500KMiniMax M3.1 Flash: 1M2× larger
Output speedTokens per second, our measurement
Grok 4.7: 185tokens/sMiniMax M3.1 Flash: Not measured
SizeTotal and active parameters
Grok 4.7: Not disclosedMiniMax M3.1 Flash: 428B23B active
Developer
SpaceXAIMiniMax
Released
21 Sep 2026Not published
Origin
United StatesNot published
Input → output
Text, image → textText, image, video → text
Architecture
Not publishedMixture-of-Experts with MiniMax Sparse Attention and native multimodal encoder

Full datasheets, every price and sourceGrok 4.7 ↗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.

Grok 4.7 72.6/100Rank 3/47

Survived 3 of 3
Foresight: complete playing field
Level 316 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

LevelGrok 4.7MiniMax M3.1 Flash
Level 1Second Thoughts
25 ptsSurvived
6 ptsOut of lives
Level 2Pressure Pot
13 ptsSurvived
5 ptsOut of lives
Level 3Hide or Flight
16 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.

Grok 4.7 65.4/100Rank 18/48

Cleared 4 of 5
Latch: complete playing field
Level 520.4 ptsTurn 28 / 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

LevelGrok 4.7MiniMax M3.1 Flash
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
8.6 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
11.6 ptsFinished early
5 ptsOut of turns
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
4.4 ptsFinished early
Level 5Second thoughts
20.4 ptsCleared
17.2 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

Grok 4.7

Some sphere reflections are correctly placed, with useful size progression and a floor image. Their overlapping side continuations and inverted floor paint order provide additional local optical cues. The gross paint sequence is recognizable, although crimson is a little too low. Incorrect lamp projections and absent nested and receding imagery still leave the mirror system largely incomplete.

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

CategoryGrok 4.7MiniMax M3.1 Flash
State at 600 ms23.0/2520.0/25
Camera and placement12.5/1510.0/15
Reflections26.0/12024.0/120
Materials and scale6.5/108.0/10
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

Grok 4.7

The bold spiral dominates an appealing, restrained silhouette, with crisp angular turns and subtle charcoal highlights. However, a visible background gap separates the shell from the body, making the shell appear suspended. The connected head and delicate eye stalks read clearly, while shading and small features remain simple.

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

CategoryGrok 4.7MiniMax M3.1 Flash
Task & likeness7.0/107.5/10
Anatomy & construction5.0/106.0/10
Space & placement5.5/107.0/10
Light & reflections4.0/106.0/10
Purposeful detail2.5/105.0/10
Artistry & character3.5/106.0/10
Materials & effects2.5/107.0/10
Visual integrity7.5/106.0/10

Benchmark task

Grok 4.7

A dark snail with a geometric spiral shell tests silhouette, curved construction and restrained material shading.

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

Grok 4.7

Dark clothing, overlapping hands and a restrained smile make the reference recognizable. The broad frontal face, elongated neck and oversized head weaken likeness and anatomical proportion; rounded hands lack convincing fingers. Gentle facial shading suggests volume, while clothing and landscape remain flat. Angular veil overlaps and a hard horizontal background boundary weaken the finish.

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

CategoryGrok 4.7MiniMax M3.1 Flash
Task & likeness2.0/104.0/10
Anatomy & construction2.0/104.5/10
Space & placement3.0/105.5/10
Light & reflections1.5/104.5/10
Purposeful detail3.0/105.5/10
Artistry & character2.5/106.0/10
Materials & effects2.0/105.5/10
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

Different task instructions

Creativity, perspective and visual beauty.

The judgment

Grok 4.7

The warm sunset, blue water and scattered beach activities create a cheerful, readable composition. Animals and equipment use basic silhouettes, with limited anatomical detail and grounding. The sun reflection forms a rigid tapered strip, and foreground objects lack cast shadows. Clean shapes support the illustration, but depth, materials and drawing complexity remain modest.

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

CategoryGrok 4.7MiniMax M3.1 Flash
Task & likeness7.5/108.5/10
Anatomy & construction4.5/107.0/10
Space & placement5.5/107.5/10
Light & reflections6.0/106.0/10
Purposeful detail5.0/108.0/10
Artistry & character3.5/106.5/10
Materials & effects4.5/106.5/10
Visual integrity6.0/107.5/10

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

Grok 4.7

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

Grok 4.7

The raccoon rides clearly on the dog's back, and expressive faces, bright colors and a readable orange hull create a playful composition. Steering is unresolved: the dog's visible paws rest on the deck rather than grasping the controls. Simple body shapes and ribbonlike wake limit construction and movement. The glowing sun produces little corresponding illumination or reflection.

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

CategoryGrok 4.7MiniMax M3.1 Flash
Task & likeness7.0/109.0/10
Anatomy & construction4.5/108.0/10
Space & placement6.5/108.0/10
Light & reflections4.5/106.0/10
Purposeful detail5.5/107.5/10
Artistry & character5.5/107.5/10
Materials & effects5.5/107.0/10
Visual integrity3.5/108.0/10

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

Grok 4.7

The pelican reads clearly through its long bill, throat pouch and curved neck. Clean pastel shapes and balanced scenery make an appealing illustration. The riding mechanism is less convincing: feet lack clear pedal contact, steering is unresolved, and the frame lacks a coherent drivetrain. Simple shading and sparse feather detail limit depth and finish.

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

CategoryGrok 4.7MiniMax M3.1 Flash
Task & likeness7.5/108.5/10
Anatomy & construction4.5/106.5/10
Space & placement6.5/108.0/10
Light & reflections6.0/107.0/10
Purposeful detail6.0/107.5/10
Artistry & character5.5/106.5/10
Materials & effects5.5/107.0/10
Visual integrity6.0/106.5/10

Benchmark task

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