STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Gemini 4 Argon vs Qwen3.8-Flash

Gemini 4 Argon leads Qwen3.8-Flash by 20.8 points on StealthMark, 67.4 to 46.6. It leads on 8 of 9 benchmarks, including both games, and Qwen3.8-Flash on 1. 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
46.6/100Overall rank 23/53

General Intelligence

63.6/100
38.5/100

Visual Intelligence

74.4/100
60.3/100

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

Open or local

Local modelOpen model · Qwen Community 1.0

BENCHMARK BY BENCHMARK

Where each model leads

  • Gemini 4 Argon
  • Qwen3.8-Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

Gemini 4 Argon scores higher on StealthMark and runs 1.9× faster in our speed test. Qwen3.8-Flash is 26× cheaper per output token. Both take about 1M tokens of context.

  • Gemini 4 Argon
  • Qwen3.8-Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
Gemini 4 Argon: $10$2 inputQwen3.8-Flash: $0.3826× cheaper$0.11 input
Context windowTokens per request, max output below
Gemini 4 Argon: 1MTied1M max outputQwen3.8-Flash: 1MTied128K max output
Output speedTokens per second, our measurement
Gemini 4 Argon: 1441.9× fastertokens/sQwen3.8-Flash: 75tokens/s
SizeTotal and active parameters
Gemini 4 Argon: Not disclosedQwen3.8-Flash: 180B6B activeEstimated
Developer
GoogleQwen / Alibaba Cloud
Released
13 Oct 202626 Aug 2026
Origin
United StatesChina
Input → output
Text, image, audio, video, PDF → textText, image, video → text
Architecture
Sparse mixture-of-experts (MoE) transformer with native multimodal inputsHosted Flash based on Flash-Next: sparse attention and n-gram memory; Flash-Next previews Qwen 4 architecture

Full datasheets, every price and sourceGemini 4 Argon ↗Qwen3.8-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

Qwen3.8-Flash 29.7/100Rank 33/47

Survived 1 of 3
Foresight: complete playing field
Level 35 ptsTurn 10 / 20

Points per level

LevelGemini 4 ArgonQwen3.8-Flash
Level 1Second Thoughts
26 ptsSurvived
26 ptsSurvived
Level 2Pressure Pot
9 ptsOut of lives
3 ptsOut of lives
Level 3Hide or Flight
6 ptsOut of lives
5 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

Qwen3.8-Flash 69.8/100Rank 16/48

Cleared 5 of 5
Latch: complete playing field
Level 520 ptsTurn 30 / 40

Points per level

LevelGemini 4 ArgonQwen3.8-Flash
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
17.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
20.6 ptsCleared
20 ptsCleared

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.

Qwen3.8-Flash

The full-frame illustration supports a central steel sphere, an airborne black blob and the relative ordering of cyan and crimson. Its faint floor return and symmetric repetitions provide sparse mirror structure; outer chains, large reflected images, nested imagery and emitter mapping remain deficient. Vertical framing is substantially displaced, and paint contact histories remain unresolved.

Score breakdown

CategoryGemini 4 ArgonQwen3.8-Flash
State at 600 ms24.5/2519.0/25
Camera and placement14.5/153.5/15
Reflections50.5/1209.5/120
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.

Qwen3.8-Flash

A coherent, appealing fantasy illustration with disciplined framing, luminous teal accents and consistent ornament. Most requested elements are clearly present. The bear-like facial proportions, lowered resting hand, obscured bent-leg construction and limited fabric modeling constrain likeness and anatomical clarity; glow effects are attractive but weakly integrated with surrounding surfaces.

Score breakdown

CategoryGemini 4 ArgonQwen3.8-Flash
Task & likeness7.0/108.0/10
Anatomy & construction6.5/107.0/10
Space & placement7.5/108.0/10
Light & reflections7.5/107.5/10
Purposeful detail8.0/108.0/10
Artistry & character7.0/107.5/10
Materials & effects7.0/107.5/10
Visual integrity7.5/108.5/10

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.

Qwen3.8-Flash

A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.

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.

Qwen3.8-Flash

The dark dress, crossed hands and hazy landscape evoke the Mona Lisa, but replication is limited by a generic frontal face, coarse smile and poorly articulated fingers. The gold frame has clearer definition than the portrait. Heavy mottling obscures features, while soft shading provides some volume without convincing anatomical detail.

Score breakdown

CategoryGemini 4 ArgonQwen3.8-Flash
Task & likeness6.5/105.0/10
Anatomy & construction6.5/104.5/10
Space & placement6.5/105.5/10
Light & reflections7.0/105.5/10
Purposeful detail6.0/105.5/10
Artistry & character6.5/105.5/10
Materials & effects7.0/105.5/10
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.

Qwen3.8-Flash

Sweeping palms, coordinated sunset colors and a central reflection create an expressive beach composition with clear depth. Birds, animals and varied activities thoroughly realize the brief. Small figures and animal anatomy remain rudimentary, water movement is schematic, and contact shadows are weak. Scattered foreground details and the clipped orange disk limit the finish.

Score breakdown

CategoryGemini 4 ArgonQwen3.8-Flash
Task & likeness9.0/109.0/10
Anatomy & construction7.5/107.0/10
Space & placement8.5/108.0/10
Light & reflections8.5/107.5/10
Purposeful detail9.0/108.5/10
Artistry & character8.0/108.0/10
Materials & effects8.0/106.5/10
Visual integrity8.0/107.0/10

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

Gemini 4 Argon

This benchmark has not been assessed yet.

Qwen3.8-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.

Qwen3.8-Flash

The raccoon clearly rides the dog's back, with expressive features and appealing blue-orange color contrast. The dog's paws do not clearly operate connected controls, and the shallow vehicle lacks convincing jet ski construction. Clean outlines support the cartoon style, but generic shading and blurred water streaks limit depth and motion.

Score breakdown

CategoryGemini 4 ArgonQwen3.8-Flash
Task & likeness8.5/107.0/10
Anatomy & construction8.0/105.5/10
Space & placement7.5/106.5/10
Light & reflections7.5/105.5/10
Purposeful detail8.5/107.0/10
Artistry & character8.5/106.5/10
Materials & effects8.0/105.5/10
Visual integrity8.0/107.0/10

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

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.

Qwen3.8-Flash

The pelican's expressive face, oversized bill and flowing scarf create an appealing focal point. The bicycle has recognizable frame, chain and wheel construction, but the far foot lacks a clear pedal connection and the wing's steering contact is ambiguous. Clean contours and gentle gradients support the illustration; simplified volume and weak directional shadows limit depth.

Score breakdown

CategoryGemini 4 ArgonQwen3.8-Flash
Task & likeness9.0/108.5/10
Anatomy & construction8.5/108.0/10
Space & placement8.0/107.5/10
Light & reflections8.0/106.5/10
Purposeful detail8.5/108.0/10
Artistry & character8.5/108.0/10
Materials & effects8.5/107.0/10
Visual integrity8.5/107.5/10

Benchmark task

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