STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Gemini 4 Argon vs MiMo-V2.6-Flash

Gemini 4 Argon leads MiMo-V2.6-Flash by 22.8 points on StealthMark, 67.4 to 44.6. It leads on all 9 benchmarks. Gemini 4 Argon scores higher on Newton's Mirror, with its largest category advantage in reflections.

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All results ↗
All results ↗

Overall StealthMark

67.4/100Overall rank 5/53
44.6/100Overall rank 28/53

General Intelligence

63.6/100
41.0/100

Visual Intelligence

74.4/100
49.8/100

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

  • Gemini 4 Argon
  • MiMo-V2.6-Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

Gemini 4 Argon scores higher on StealthMark. MiMo-V2.6-Flash is 36× cheaper per output token and runs 3.8× faster in our speed test. Both take about 1M tokens of context.

  • Gemini 4 Argon
  • MiMo-V2.6-Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
Gemini 4 Argon: $10$2 inputMiMo-V2.6-Flash: $0.2836× cheaper$0.14 input
Context windowTokens per request, max output below
Gemini 4 Argon: 1MTied1M max outputMiMo-V2.6-Flash: 1MTied128K max output
Output speedTokens per second, our measurement
Gemini 4 Argon: 144tokens/sMiMo-V2.6-Flash: 5473.8× fastertokens/s
SizeTotal and active parameters
Gemini 4 Argon: Not disclosedMiMo-V2.6-Flash: 309B15B active
Developer
GoogleXiaomi
Released
13 Oct 202621 Sep 2026
Origin
United StatesChina
Input → output
Text, image, audio, video, PDF → textText, image, video, audio → text
Architecture
Sparse mixture-of-experts (MoE) transformer with native multimodal inputsReleased Flash-RL checkpoint: sparse Mixture-of-Experts; hosted Flash and MOPD variants are distinct artifacts

Full datasheets, every price and sourceGemini 4 Argon ↗MiMo-V2.6-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.

Gemini 4 Argon 48.6/100Rank 19/47

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

MiMo-V2.6-Flash 71.3/100Rank 36/471 of 3 levels

1 of 3 played
Foresight: complete playing field
Level 212 ptsTurn 14 / 18

Points per level

LevelGemini 4 ArgonMiMo-V2.6-Flash
Level 1Second Thoughts
26 ptsSurvived
Pending
Level 2Pressure Pot
9 ptsOut of lives
12 ptsOut of lives
Level 3Hide or Flight
6 ptsOut of lives
Not played

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

MiMo-V2.6-Flash 66.3/100Rank 27/483 of 5 levels

3 of 5 played
Latch: complete playing field
Level 318 ptsTurn 36 / 36

Points per level

LevelGemini 4 ArgonMiMo-V2.6-Flash
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
9.6 ptsCleared
Level 3Relay vault
19.2 ptsCleared
18 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.

MiMo-V2.6-Flash

The faint lower sphere image provides limited reflection evidence through reversed paint-color ordering. The wider reflection system and nested room imagery are absent. The colored beads do not resolve the required impact and transport history, while displaced paint positions and weak material rendering further limit the result.

Score breakdown

CategoryGemini 4 ArgonMiMo-V2.6-Flash
State at 600 ms24.5/255.0/25
Camera and placement14.5/154.5/15
Reflections50.5/1206.5/120
Materials and scale8.5/102.5/10
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

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.

MiMo-V2.6-Flash

The centered rabbit has an appealing alert expression, a balanced silhouette, and a restrained technological palette. Outfit panels and orbital accents are cleanly resolved. The orb-holding paw has an ambiguous grip, the ears lack distinct angular bends, and the halo's interlocking construction is unclear. Soft shading suggests volume, but materials and spatial depth remain simplified.

Score breakdown

CategoryGemini 4 ArgonMiMo-V2.6-Flash
Task & likeness7.0/108.0/10
Anatomy & construction6.5/106.5/10
Space & placement7.5/107.0/10
Light & reflections7.5/107.0/10
Purposeful detail8.0/106.0/10
Artistry & character7.0/105.5/10
Materials & effects7.0/106.5/10
Visual integrity7.5/108.0/10

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.

MiMo-V2.6-Flash

A small rabbit in an explorer outfit floats with a luminous orb. The scene tests character anatomy, pose and the placement of geometric forms around it.

Mona Lisa

Different 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.

MiMo-V2.6-Flash

The dark clothing, long hair, folded hands and hazy landscape make the reference recognizable. Replication is limited by the frontal symmetry, elongated face, wide staring eyes and downturned mouth. Both arms connect to the hands, but the overlapping palms and looplike fingers are poorly resolved. Soft facial shading provides some volume; the clothing and landscape remain broad, simplified shapes.

Score breakdown

CategoryGemini 4 ArgonMiMo-V2.6-Flash
Task & likeness6.5/103.0/10
Anatomy & construction6.5/102.5/10
Space & placement6.5/104.0/10
Light & reflections7.0/103.0/10
Purposeful detail6.0/104.0/10
Artistry & character6.5/102.5/10
Materials & effects7.0/103.5/10
Visual integrity7.0/105.5/10

Benchmark task

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

Beach

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.

MiMo-V2.6-Flash

The warm sunset, aligned reflection, framing palms and playful beach animals create an appealing, coherent scene. Small toys and shells remain readable. Drawing is simplified: animals have limited volume, water uses repetitive horizontal strokes, and foreground shadows do not consistently follow the central sun. Clean execution supports a competent illustration, but depth and material rendering remain modest.

Score breakdown

CategoryGemini 4 ArgonMiMo-V2.6-Flash
Task & likeness9.0/107.5/10
Anatomy & construction7.5/106.5/10
Space & placement8.5/107.0/10
Light & reflections8.5/106.0/10
Purposeful detail9.0/107.0/10
Artistry & character8.0/106.0/10
Materials & effects8.0/106.0/10
Visual integrity8.0/108.0/10

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

Gemini 4 Argon

This benchmark has not been assessed yet.

MiMo-V2.6-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

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.

MiMo-V2.6-Flash

The raccoon riding the dog reads clearly, with expressive faces and a cheerful waterscape. The steering action is weak: no paw reaches the handlebar, which meets the dog's muzzle. The vehicle resembles a thin board with a steering post. Overlapping limbs obscure anatomy, while limited shadows, reflections and surface modeling keep the scene flat.

Score breakdown

CategoryGemini 4 ArgonMiMo-V2.6-Flash
Task & likeness8.5/106.5/10
Anatomy & construction8.0/104.0/10
Space & placement7.5/106.5/10
Light & reflections7.5/104.5/10
Purposeful detail8.5/105.5/10
Artistry & character8.5/104.0/10
Materials & effects8.0/105.5/10
Visual integrity8.0/106.0/10

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

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.

MiMo-V2.6-Flash

The pelican is immediately recognizable, with an expressive eye and prominent pouch, and the landscape provides clear framing. Clean outlines and spokes support the cheerful illustration. Both feet visibly miss the bicycle's pedal mechanism, weakening the riding action. Simplified machinery, shallow depth and loosely directional shading limit the requested masterpiece quality.

Score breakdown

CategoryGemini 4 ArgonMiMo-V2.6-Flash
Task & likeness9.0/108.0/10
Anatomy & construction8.5/105.5/10
Space & placement8.0/107.0/10
Light & reflections8.0/106.0/10
Purposeful detail8.5/107.0/10
Artistry & character8.5/106.5/10
Materials & effects8.5/105.5/10
Visual integrity8.5/107.5/10

Benchmark task

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