STEALTHMARK · HEAD TO HEAD

All comparisons ↗

MiniMax M3 vs Muse Spark Open

Muse Spark Open leads MiniMax M3 by 9.5 points on StealthMark, 44.1 to 34.6. It leads on 5 of 9 benchmarks, including both games, and MiniMax M3 on 4. MiniMax M3 scores higher on Newton's Mirror, with its largest category advantage in reflections.

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All results ↗
All results ↗

Overall StealthMark

34.6/100Overall rank 39/53
44.1/100Overall rank 29/53

General Intelligence

28.0/100
42.6/100

Visual Intelligence

45.3/100
46.6/100

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

  • MiniMax M3
  • Muse Spark Open

Open or local

BENCHMARK BY BENCHMARK

Where each model leads

  • MiniMax M3
  • Muse Spark Open
  • Other models
  • Median

DATASHEET

Specs and pricing

MiniMax M3 is 3.5× cheaper per output token. Muse Spark Open scores higher on StealthMark and runs 2.2× faster in our speed test. Both take about 1M tokens of context.

  • MiniMax M3
  • Muse Spark Open
  • Other models
  • Median
PricePer 1M output tokens, input below
MiniMax M3: $1.203.5× cheaper$0.30 inputMuse Spark Open: $4.25$1.25 input
Context windowTokens per request, max output below
MiniMax M3: 1MTied512K max outputMuse Spark Open: 1MTied1M max output
Output speedTokens per second, our measurement
MiniMax M3: 162tokens/sMuse Spark Open: 3612.2× fastertokens/s
SizeTotal and active parameters
MiniMax M3: 428B23B activeMuse Spark Open: 816B42B active
Developer
MiniMaxMeta
Released
1 Jun 202615 Oct 2026
Origin
SingaporeUnited States
Input → output
Text, image, video → textText, image, audio, video → text
Architecture
Mixture-of-Experts with MiniMax Sparse Attention and native multimodal encoderSparse mixture-of-experts Transformer with perception encoders; 62 decoder layers, 256 experts with 8 selected per token, grouped-query attention and sliding-window/full-attention layers.

Full datasheets, every price and sourceMiniMax M3 ↗Muse Spark Open ↗

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 22.1/100Rank 38/47

Survived 0 of 3
Foresight: complete playing field
Level 36 ptsTurn 7 / 20

Muse Spark Open 29.4/100Rank 34/47

Survived 0 of 3
Foresight: complete playing field
Level 38 ptsTurn 15 / 20

Points per level

LevelMiniMax M3Muse Spark Open
Level 1Second Thoughts
17 ptsOut of lives
4 ptsOut of lives
Level 2Pressure Pot
3 ptsOut of lives
9 ptsOut of lives
Level 3Hide or Flight
6 ptsOut of lives
8 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 31.4/100Rank 34/48

Cleared 2 of 5
Latch: complete playing field
Level 58.8 ptsTurn 11 / 40

Muse Spark Open 75.7/100Rank 12/48

Cleared 5 of 5
Latch: complete playing field
Level 519.6 ptsTurn 32 / 40

Points per level

LevelMiniMax M3Muse Spark Open
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.4 ptsClearedFinished early · 1 beacon left
9.8 ptsCleared
Level 3Relay vault
0.2 ptsFinished early
19.2 ptsCleared
Level 4Passing bay
14.2 ptsFinished early
17.8 ptsClearedFinished early · 1 beacon left
Level 5Second thoughts
8.8 ptsFinished early
19.6 ptsCleared

Newton's Mirror

Same task instructions

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

The judgment

MiniMax M3

The centered sphere, aligned left wall image, smaller lower-left continuation and partially occluded floor image provide recognizable local mirror coherence. Cyan remains airborne, the main sphere resembles white marble, and missing right-side imagery, recursive optics and panel mappings leave the scene substantially incomplete.

Muse Spark Open

The airborne black blob and deformed paint support the broad contact sequence, although cyan attachment and wheel-directed transport remain partial. The sphere and black blob have substantial framing errors. The dominant limitation is the largely absent mirror system: faint wall circles and isolated highlights provide little evidence of recursive room geometry or curved nested reflections. Oversized compact paint features and diffuse material treatment further limit credit.

Score breakdown

CategoryMiniMax M3Muse Spark Open
State at 600 ms7.0/2514.0/25
Camera and placement14.5/156.0/15
Reflections22.0/1208.0/120
Materials and scale5.0/103.5/10
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

The oversized coral M silhouette dominates clearly, with an expressive charcoal face and appealing miniature body. Limbs connect coherently and the cube reads clearly. The lowered left hand only loosely suggests the requested hip pose. Thin highlights and simple gradients provide limited sculptural volume; the cube's glow and grounding shadow are restrained.

Muse Spark Open

The rounded silhouette and asymmetric expression make an appealing baby elephant, supported by a quiet background and grounding shadow. The protective action remains difficult to read: forefeet cannot be confidently traced into a grip, and seed contact is crowded by fine lines. Controlled simple shapes provide charm, but limited anatomical clarity, shading and surface detail leave the execution uneven.

Score breakdown

CategoryMiniMax M3Muse Spark Open
Task & likeness8.0/105.0/10
Anatomy & construction6.0/104.5/10
Space & placement7.0/106.0/10
Light & reflections6.0/105.0/10
Purposeful detail4.0/106.0/10
Artistry & character4.0/105.0/10
Materials & effects4.0/105.0/10
Visual integrity8.0/106.5/10

Benchmark task

MiniMax M3

A small robot with an oversized angular head presents a glowing object. The scene tests character proportions, gesture and contrasting materials.

Muse Spark Open

A small elephant protecting a delicate seed tests expressive anatomy, physical contact and contrasting organic materials.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

MiniMax M3

The centered portrait, dark hair and muted palette suggest Mona Lisa, but characteristic likeness and pose are poorly reproduced. The broad oval face lacks her subtle smile; rounded shoulders and a lone mittenlike hand leave the crossed-arm construction unresolved. Warm shading supplies some volume, while blurred landscape bands, generic clothing and indistinct features limit the drawing.

Muse Spark Open

A recognizable, orderly interpretation with clean major contours, connected body forms and modest facial shading. Wide eyes, frontal symmetry and schematic hands limit likeness and expression. Layered scenery establishes basic depth, but shallow arm overlaps, flat clothing and sparse fine detail keep the execution basic and uneven.

Score breakdown

CategoryMiniMax M3Muse Spark Open
Task & likeness2.5/103.0/10
Anatomy & construction1.5/103.0/10
Space & placement2.5/105.0/10
Light & reflections3.0/104.5/10
Purposeful detail1.5/104.0/10
Artistry & character1.5/103.0/10
Materials & effects2.0/104.0/10
Visual integrity2.0/106.0/10

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

A cheerful, coherent sunset illustration with framing palms, warm gradients and an aligned sun reflection. Animals and beach toys add character, but their construction remains basic. The sailboat appears suspended above the water horizon, while absent cast shadows weaken foreground contact. Clean geometric shapes provide polish without substantial texture or depth.

Muse Spark Open

A coherent sunset beach with readable activities, balanced framing and controlled colour transitions. Small accessories add interest, but schematic anatomy, limited surface detail, weak directional shadows and a geometric reflection constrain its finish. Most shapes and overlaps remain clean.

Score breakdown

CategoryMiniMax M3Muse Spark Open
Task & likeness8.0/108.0/10
Anatomy & construction4.5/106.0/10
Space & placement6.0/106.5/10
Light & reflections7.0/105.5/10
Purposeful detail6.0/106.5/10
Artistry & character5.0/105.5/10
Materials & effects5.0/106.0/10
Visual integrity5.5/108.0/10

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

MiniMax M3

This benchmark has not been assessed yet.

Muse Spark Open

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

The raccoon sits above the dog's back, and the dog reaches toward the jet ski controls. Expressive faces and a vivid sunset make the scene appealing. Construction is simplified: the dog's paws and steering grip are ambiguous, the hull is shallow, and blurred wake patches give limited water displacement. Sunset glow exceeds the lighting modeled on the riders.

Muse Spark Open

Expressive faces, distinct accessories and clean color separation make the scene appealing and recognizable. Character detail is stronger than the functional construction: steering contact, limb overlaps and seating remain ambiguous. The readable hull and lively spray establish motion, while limited directional shading and simplified surfaces constrain depth and physical coherence.

Score breakdown

CategoryMiniMax M3Muse Spark Open
Task & likeness8.0/104.0/10
Anatomy & construction5.5/103.0/10
Space & placement6.5/106.0/10
Light & reflections6.0/104.5/10
Purposeful detail7.0/107.0/10
Artistry & character6.0/103.5/10
Materials & effects6.0/105.0/10
Visual integrity7.0/105.0/10

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

MiniMax M3

The pelican's long bill, pouch and curved neck read clearly, and the warm sunset gives the composition appeal. Bicycle construction weakens the riding action: feet do not convincingly engage the pedals, crank connections are unclear, and body support is unresolved. Clean silhouettes and orderly spokes provide a competent illustrative finish.

Muse Spark Open

A controlled, appealing cartoon with a recognizable pelican, expressive face and clean curved forms. Feather lines, spokes and bill shading provide useful complexity. Aligned wheels and a ground shadow establish placement, but uncertain pedal contacts and obscured mechanical connections weaken support and riding action. Lighting remains loosely coordinated with the sun.

Score breakdown

CategoryMiniMax M3Muse Spark Open
Task & likeness8.0/107.5/10
Anatomy & construction5.5/105.0/10
Space & placement6.5/106.0/10
Light & reflections6.5/105.0/10
Purposeful detail7.5/106.5/10
Artistry & character6.5/105.5/10
Materials & effects6.0/106.0/10
Visual integrity6.5/107.5/10

Benchmark task

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