STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Gemini 4 Argon vs Muse Spark 1.3

Gemini 4 Argon leads Muse Spark 1.3 by 27.6 points on StealthMark, 67.4 to 39.8. It leads on 8 of 9 benchmarks, including Latch, and Muse Spark 1.3 on 1, including Foresight. Gemini 4 Argon scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

67.4/100Overall rank 5/53
39.8/100Overall rank 34/53

General Intelligence

63.6/100
38.3/100

Visual Intelligence

74.4/100
42.3/100

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

BENCHMARK BY BENCHMARK

Where each model leads

  • Gemini 4 Argon
  • Muse Spark 1.3
  • Other models
  • Median

DATASHEET

Specs and pricing

Gemini 4 Argon scores higher on StealthMark. Muse Spark 1.3 is 2.4× cheaper per output token and runs 2.2× faster in our speed test. Both take about 1M tokens of context.

  • Gemini 4 Argon
  • Muse Spark 1.3
  • Other models
  • Median
PricePer 1M output tokens, input below
Gemini 4 Argon: $10$2 inputMuse Spark 1.3: $4.252.4× cheaper$1.25 input
Context windowTokens per request, max output below
Gemini 4 Argon: 1MTied1M max outputMuse Spark 1.3: 1MTied
Output speedTokens per second, our measurement
Gemini 4 Argon: 144tokens/sMuse Spark 1.3: 3212.2× fastertokens/s
Developer
GoogleMeta
Released
13 Oct 20262 Sep 2026
Origin
United StatesBoth
Input → output
Text, image, audio, video, PDF → textText, image, video, audio, PDF → text
Architecture
Sparse mixture-of-experts (MoE) transformer with native multimodal inputsNot published

Full datasheets, every price and sourceGemini 4 Argon ↗Muse Spark 1.3 ↗

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.

Gemini 4 Argon 48.6/100Rank 19/47

Survived 1 of 3
Foresight: complete playing field
Level 36 ptsTurn 7 / 20

Muse Spark 1.3 64.3/100Rank 6/47

Survived 2 of 3
Foresight: complete playing field
Level 311 ptsTurn 17 / 20

Points per level

LevelGemini 4 ArgonMuse Spark 1.3
Level 1Second Thoughts
26 ptsSurvived
26 ptsSurvived
Level 2Pressure Pot
9 ptsOut of lives
10 ptsSurvived
Level 3Hide or Flight
6 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.

Gemini 4 Argon 82.6/100Rank 6/48

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

Muse Spark 1.3 72.4/100Rank 26/483 of 5 levels

3 of 5 played
Latch: complete playing field
Level 318.8 ptsTurn 32 / 36

Points per level

LevelGemini 4 ArgonMuse Spark 1.3
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
9.8 ptsCleared
Level 3Relay vault
19.2 ptsCleared
18.8 ptsCleared
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
Pending
Level 5Second thoughts
20.6 ptsCleared
Not played

Newton's Mirror

Same task instructions

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

The judgment

Gemini 4 Argon

The central sphere, separate airborne black blob, flattened cyan contact and displaced crimson aftermath support the principal camera and physical-state requirements. Open lateral lanes and initial reflection placements provide partial optical structure, but missing outer chains, sparse nested imagery and incomplete emitter mappings remain substantial limitations. The raised crimson mass also weakens paint-scale fidelity.

Muse Spark 1.3

The paint state is incorrectly and poorly drawn, despite a recognizable sphere-and-paint setup. The oversized sphere, oversized compact paint bodies, and blurred wall and floor images further limit the result. Isolated reflection cues provide very little support for the required repeated virtual rooms, nested spherical imagery or emitter mapping.

Score breakdown

CategoryGemini 4 ArgonMuse Spark 1.3
State at 600 ms24.5/256.0/25
Camera and placement14.5/158.5/15
Reflections50.5/1205.5/120
Materials and scale8.5/104.0/10
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

Gemini 4 Argon

An appealing, controlled illustration with a distinctive buoyant silhouette, expressive comic face and rich luminous colour. The full composition and grounded slipper read clearly. The principal limitation is the crowded raised-foot interaction: paws, toes and lining overlap without making the bent leg or tight fit unmistakable.

Muse Spark 1.3

The luminous creature and geometric mirror counterpart communicate self-recognition through a coherent palette and expressive eyes. The transformed reflection is purposeful. Simple oval anatomy, ambiguous reaching-arm construction, shallow spatial staging and limited illumination of nearby surfaces keep the illustration below exceptional execution.

Score breakdown

CategoryGemini 4 ArgonMuse Spark 1.3
Task & likeness7.0/108.0/10
Anatomy & construction6.5/105.0/10
Space & placement7.5/106.5/10
Light & reflections7.5/107.0/10
Purposeful detail8.0/106.5/10
Artistry & character7.0/105.5/10
Materials & effects7.0/106.5/10
Visual integrity7.5/107.5/10

Benchmark task

Gemini 4 Argon

A luminous little dragon struggles with its bedtime slippers while a buoyant tail pulls it upward. The scene tests expressive anatomy, physical contact and the contrast between translucent forms and heavy objects.

Muse Spark 1.3

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.

Mona Lisa

Same task instructions

Precise visual recall and portrait reconstruction.

The judgment

Gemini 4 Argon

A coherent, moderately complex Mona Lisa reconstruction with substantial portrait volume, articulated clothing and landscape recession. Specific source features support replication beyond recognition alone. Altered facial likeness, uncertain crossed-hand anatomy and pervasive colored crackle keep the result uneven despite its developed shading and detail.

Muse Spark 1.3

Dark hair, a restrained smile and overlapping hands suggest Mona Lisa, but replication is weak. The face is markedly elongated, the hands are oval pads with faint finger strokes, and the atmospheric landscape is absent. Soft gradients provide basic volume, while the frontal symmetry, shallow space and sparse clothing detail limit the portrait’s drawing quality.

Score breakdown

CategoryGemini 4 ArgonMuse Spark 1.3
Task & likeness6.5/101.0/10
Anatomy & construction6.5/101.5/10
Space & placement6.5/101.5/10
Light & reflections7.0/101.5/10
Purposeful detail6.0/101.0/10
Artistry & character6.5/101.5/10
Materials & effects7.0/101.5/10
Visual integrity7.0/103.0/10

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

Beach

Same task instructions

Creativity, perspective and visual beauty.

The judgment

Gemini 4 Argon

A strong decorative beach illustration with controlled color, intricate silhouettes and abundant playful detail. Connected dolphin forms and recognizable equipment support its construction, while the aligned sunset reflection anchors the scene. Compressed wave depth, ambiguous foreground support and uneven reflection specificity limit physical coherence. The saved comparisons support retaining the category assessments.

Muse Spark 1.3

The warm sunset, framing palms and colorful beach accessories create an appealing scene with the requested animals, birds and reflections. Construction remains schematic: the raised hand misses the kite string, and a doglike silhouette hangs above the water without clear support. The sun reflection establishes a focal path, but shadows and materials lack depth. An unexplained horizontal bar crosses the sun.

Score breakdown

CategoryGemini 4 ArgonMuse Spark 1.3
Task & likeness9.0/106.5/10
Anatomy & construction7.5/103.0/10
Space & placement8.5/105.5/10
Light & reflections8.5/106.5/10
Purposeful detail9.0/105.0/10
Artistry & character8.0/103.5/10
Materials & effects8.0/103.0/10
Visual integrity8.0/103.5/10

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

Gemini 4 Argon

This benchmark has not been assessed yet.

Muse Spark 1.3

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

Same task instructions

Scene composition and interacting subjects.

The judgment

Gemini 4 Argon

An accomplished illustration with expressive characters, intricate spray and strong depth. Direct back seating, steering connections and hull-water contact are only partly demonstrated. Clean graphic execution and purposeful detail remain strengths, while shadows and reflections provide limited physical grounding.

Muse Spark 1.3

The raccoon clearly rides on the dog's back, and the dog's paws reach the jet ski controls. Expressive faces and bright colors make the scene appealing. Simplified joints, crowded steering geometry and shallow hull perspective limit construction. The sun has no corresponding water reflection, and the splash shapes convey speed more clearly than convincing displacement.

Score breakdown

CategoryGemini 4 ArgonMuse Spark 1.3
Task & likeness8.5/108.5/10
Anatomy & construction8.0/106.5/10
Space & placement7.5/107.0/10
Light & reflections7.5/105.0/10
Purposeful detail8.5/106.5/10
Artistry & character8.5/105.5/10
Materials & effects8.0/106.0/10
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

Same task instructions

Subject construction and spatial relationships.

The judgment

Gemini 4 Argon

An expressive, detailed illustration with controlled gradients and coherent environmental depth. Continuous body contours and connected bicycle components establish competent construction. Steering grip and pedal engagement remain less explicit than the decorative details and wheel placement. These contact uncertainties limit action and placement credit without establishing broken anatomy.

Muse Spark 1.3

The pelican and bicycle are immediately recognizable, with an expressive face, bold bill and cheerful composition. Both legs connect to the body and reach pedal-like supports, but articulation, saddle support and wing contact with the handlebar remain unclear. Wheel alignment and layering are coherent. Simple landscape shapes, generic shadows and limited material variation constrain the finish.

Score breakdown

CategoryGemini 4 ArgonMuse Spark 1.3
Task & likeness9.0/108.5/10
Anatomy & construction8.5/106.0/10
Space & placement8.0/107.0/10
Light & reflections8.0/106.0/10
Purposeful detail8.5/107.0/10
Artistry & character8.5/105.5/10
Materials & effects8.5/106.5/10
Visual integrity8.5/107.0/10

Benchmark task

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