STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Kimi K3 vs Muse Wonder

Muse Wonder leads Kimi K3 by 6.4 points on StealthMark, 57.0 to 50.6. It leads on 5 of 9 benchmarks, including Latch, and Kimi K3 on 4, including Foresight. Muse Wonder scores higher on Ground Truth.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

50.6/100Overall rank 15/53
57.0/100Overall rank 10/53

General Intelligence

44.4/100
53.1/100

Visual Intelligence

61.4/100
64.0/100

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 modelKimi K3 License

BENCHMARK BY BENCHMARK

Where each model leads

  • Kimi K3
  • Muse Wonder
  • Other models
  • Median

DATASHEET

Specs and pricing

Kimi K3 is 1.9× cheaper per output token. Muse Wonder scores higher on StealthMark and runs 5× faster in our speed test. Both take about 1M tokens of context.

  • Kimi K3
  • Muse Wonder
  • Other models
  • Median
PricePer 1M output tokens, input below
Kimi K3: $10.801.9× cheaper$0.24 inputMuse Wonder: $20$4 input
Context windowTokens per request, max output below
Kimi K3: 1MTied1M max outputMuse Wonder: 1MTied
Output speedTokens per second, our measurement
Kimi K3: 115tokens/sMuse Wonder: 5705× fastertokens/s
SizeTotal and active parameters
Kimi K3: 2.8T104B activeMuse Wonder: Not disclosed
Developer
Moonshot AIMeta
Released
16 Jul 202612 Oct 2026
Origin
ChinaUnited States
Input → output
Text, image → textText, image, video, audio, PDF → text
Architecture
Mixture-of-Experts with KDA + Gated MLA attention, 896 experts and native vision encoderNot published

Full datasheets, every price and sourceKimi K3 ↗Muse Wonder ↗

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.

Kimi K3 52.7/100Rank 16/47

Survived 0 of 3
Foresight: complete playing field
Level 311 ptsTurn 17 / 20

Muse Wonder 52.3/100Rank 17/47

Survived 0 of 3
Foresight: complete playing field
Level 311 ptsTurn 17 / 20

Points per level

LevelKimi K3Muse Wonder
Level 1Second Thoughts
17 ptsOut of lives
16 ptsOut of lives
Level 2Pressure Pot
10 ptsOut of lives
10 ptsOut of lives
Level 3Hide or Flight
11 ptsOut of lives
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.

Kimi K3 57.7/100Rank 20/48

Cleared 3 of 5
Latch: complete playing field
Level 514.2 ptsTurn 4 / 40

Muse Wonder 67.0/100Rank 17/48

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

Points per level

LevelKimi K3Muse Wonder
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.6 ptsCleared
9 ptsCleared
Level 3Relay vault
18.2 ptsClearedFinished early · 3 beacons left
18.8 ptsCleared
Level 4Passing bay
14.2 ptsFinished early
17.8 ptsClearedFinished early · 1 beacon left
Level 5Second thoughts
14.2 ptsFinished early
20.6 ptsCleared

Newton's Mirror

Same task instructions

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

The judgment

Kimi K3

The room fills the complete portrait frame without visible borders or labels. The main sphere and airborne black are convincingly placed within the portrait frame. Paint ordering is supported, but its contact and transport history remains weakly expressed. Symmetric wall ghosts, inverted floor imagery and panel echoes establish a basic mirror system. Diffuse gradients dominate, with little ordered nested imagery or repeated emitter mapping on either planar or spherical surfaces. The wall images sit too low, and the floor image is unusually large and low.

Muse Wonder

The flattened cyan cap, separate airborne black blob and crimson droplets support much of the contact sequence, although crimson adhesion and forward carriage remain unresolved. Main-sphere placement is broadly compatible with the prescribed view. Sparse isolated mirror images replace the defining repeated room structure and curved nested reflections. The crimson mass is visibly oversized, and the top-center lamp image is missing.

Score breakdown

CategoryKimi K3Muse Wonder
State at 600 ms18.0/2522.0/25
Camera and placement8.0/1512.0/15
Reflections24.0/12021.5/120
Materials and scale6.5/107.5/10
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

Kimi K3

The indigo creature and warm reflected counterpart create a balanced, contemplative composition. Equations, constellations and book emblems give the transformation meaning. Clean silhouettes and controlled glow support the scene, but minimally articulated legs, shallow spatial cues and smooth, generalized surfaces limit its anatomical and material richness.

Muse Wonder

An appealing, coherent cartoon with a readable effortful expression and clear forefeet gripping the trunk. Soft colours and controlled contours support its tenderness. Smooth ears, stiff foreleg construction, limited surface texture and uncertain seed contact keep the execution below intricate illustration quality.

Score breakdown

CategoryKimi K3Muse Wonder
Task & likeness9.0/107.5/10
Anatomy & construction7.0/107.0/10
Space & placement8.0/107.5/10
Light & reflections7.5/107.0/10
Purposeful detail8.0/107.5/10
Artistry & character8.5/106.5/10
Materials & effects7.5/106.5/10
Visual integrity8.0/108.0/10

Benchmark task

Kimi K3

An imagined creature encounters its reflection. The scene tests original character design, visual self-interpretation and the relationship between a subject and its reflected image.

Muse Wonder

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

Kimi K3

The centered portrait, dark veil, folded hands and misty landscape clearly evoke Mona Lisa. Replication is limited by the elongated neck, simplified facial proportions and oval hands with shallow finger marks. Soft shading gives some volume, but pervasive blur substitutes for controlled painterly transitions and precise detail.

Muse Wonder

A competent illustrative interpretation with controlled curves, readable details and coherent depth layers. Facial, hair and garment shading demonstrate more development than basic construction. Replication remains limited by the frontal pose, elongated face and pronounced smile; crowded fingers, weak contact shadows and smooth materials constrain anatomical and painterly conviction.

Score breakdown

CategoryKimi K3Muse Wonder
Task & likeness4.5/105.5/10
Anatomy & construction3.5/105.5/10
Space & placement4.5/105.5/10
Light & reflections4.5/105.5/10
Purposeful detail4.0/105.5/10
Artistry & character4.5/105.5/10
Materials & effects4.5/105.0/10
Visual integrity5.0/106.5/10

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

Kimi K3

A coordinated sunset palette, expressive silhouettes and varied small details create a lively, appealing beach illustration. The central sun and framing palm and umbrella organize the busy scene, with clean contours preserving readability. Bodies and people remain diagrammatic, depth is shallow, and inverted figure reflections cross matte-looking sand without convincing surface lighting. Materials and movement are mostly conveyed through flat shapes.

Muse Wonder

A lively beach illustration with expressive animals, controlled colour transitions and unusually readable accessories. Connected graphic forms make the activities recognizable. Crowded overlaps, compressed depth, schematic joints, weak directional shadows and limited material variation constrain its physical coherence and refinement.

Score breakdown

CategoryKimi K3Muse Wonder
Task & likeness8.5/108.5/10
Anatomy & construction7.0/106.0/10
Space & placement7.0/106.5/10
Light & reflections6.5/106.5/10
Purposeful detail8.5/109.0/10
Artistry & character8.5/107.0/10
Materials & effects6.5/106.0/10
Visual integrity7.0/107.0/10

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

Kimi K3

This benchmark has not been assessed yet.

Muse Wonder

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

Kimi K3

The raccoon rides on the dog's back, and the dog's paw meets a steering assembly connected to the red hull. Expressive faces, a warm sunset and sweeping spray create an appealing composition. Crowded body overlaps obscure some limb connections, and the raccoon's right ear appears slightly separated. Flat shading and stylized reflections limit volume and depth.

Muse Wonder

An expressive, coherent cartoon demonstrates the requested riding and steering interaction. Clean contours, differentiated accessories and energetic spray support its appeal. Concealed seated contacts, compressed vehicle perspective and weak directional lighting limit physical resolution despite the detailed presentation.

Score breakdown

CategoryKimi K3Muse Wonder
Task & likeness8.0/107.5/10
Anatomy & construction6.5/105.5/10
Space & placement7.5/106.5/10
Light & reflections7.0/104.5/10
Purposeful detail7.5/107.5/10
Artistry & character6.0/105.5/10
Materials & effects7.5/107.0/10
Visual integrity7.0/107.0/10

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

Kimi K3

The pelican and bicycle are immediately recognizable, with an expressive bill, flowing scarf and cheerful composition. Both legs remain attached, but pedal connections and wing contact with the handlebar are weakly resolved. Wheel alignment and landscape layers are coherent. Clean outlines support the illustration, while flat surfaces and limited lighting keep it short of masterful execution.

Muse Wonder

A controlled, expressive seaside illustration with a distinctive pelican, coherent bicycle geometry and successfully resolved graphic detail. Visible pedal support and plausible occlusion strengthen the riding construction. Aligned wheels and layered scenery establish placement. Limited cast shadows, simplified leg articulation and restrained material modeling constrain its physical finish.

Score breakdown

CategoryKimi K3Muse Wonder
Task & likeness8.0/108.5/10
Anatomy & construction6.5/106.0/10
Space & placement7.5/107.5/10
Light & reflections5.0/105.5/10
Purposeful detail6.5/108.5/10
Artistry & character6.0/107.5/10
Materials & effects6.0/106.0/10
Visual integrity6.5/108.0/10

Benchmark task

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