STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek V4.1 Flash 1017 vs Qwen3.8 Max 0902

Qwen3.8 Max 0902 leads DeepSeek V4.1 Flash 1017 by 3.8 points on StealthMark, 63.3 to 59.5. DeepSeek V4.1 Flash 1017 leads on 5 of 9 benchmarks and Qwen3.8 Max 0902 on 4, including both games. Qwen3.8 Max 0902 scores higher on Beach, with its largest category advantage in artistry & character.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

59.5/100Overall rank 9/50
63.3/100Overall rank 6/50

General Intelligence

56.9/100
62.7/100

Visual Intelligence

64.1/100
64.5/100

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek V4.1 Flash 1017
  • Qwen3.8 Max 0902
  • Other models
  • Median

Planning and learning across maze levels. 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.

DeepSeek V4.1 Flash 101752.9/100Rank 13/43

Survived 1 of 3 levels
Foresight: complete playing field
Level 310 ptsTurn 15 / 20

Qwen3.8 Max 090272.4/100Rank 4/43

Survived 2 of 3 levels
Foresight: complete playing field
Level 316 ptsTurn 20 / 20

Points per level

LevelDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Level 1Second Thoughts
26 ptsSurvived
27 ptsSurvived
Level 2Pressure Pot
7 ptsOut of lives
12 ptsOut of lives
Level 3Hide or Flight
10 ptsOut of lives
16 ptsSurvived

Cooperative planning across puzzle levels. 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.

DeepSeek V4.1 Flash 101773.9/100Rank 12/43

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

Qwen3.8 Max 090282.6/100Rank 6/43

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

Points per level

LevelDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
9.8 ptsCleared
Level 3Relay vault
19.2 ptsCleared
19.2 ptsCleared
Level 4Passing bay
16.4 ptsClearedFinished early · 3 beacons left
18.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
20 ptsCleared
20.6 ptsCleared

Newton's Mirror

Same task instructions

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

The judgment

DeepSeek V4.1 Flash 1017

Principal sphere and airborne-black placements are supported, and diminishing bilateral chains provide limited optical structure. Missing nested imagery, incomplete outer chains, distorted first images and sparse emitter recurrence remain the dominant weaknesses. Oversized paint bodies and unresolved cyan contact impose separate limitations.

Qwen3.8 Max 0902

The central sphere and differentiated cyan/crimson interaction are supported. The tiny highlighted object above the sphere provides partial airborne-black evidence. The few isolated sphere and panel images preserve limited optical relationships, but most of the repeating mirror-room structure is missing. Core score: 64.5/170; including the floor-damage reward: 64.5/180.

Score breakdown

CategoryDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
State at 600 ms23.0/2523.5/25
Camera and placement13.5/1512.0/15
Reflections34.0/12029.0/120
Materials and scale9.0/108.0/10
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

DeepSeek V4.1 Flash 1017

An expressive, intricately drawn storybook scene with a complete flowing silhouette and differentiated glossy materials. The supported main lens and continuous shrimp body make the central interaction readable, but reciprocal eye lines, facial magnification and the smaller lens grip remain ambiguous. Bright granular fringes and crowded accessory lines limit the finish.

Qwen3.8 Max 0902

A coherent ornamental illustration with balanced framing, appealing color and legible magical accessories. The disconnected raised wrist, incorrect raised-arm side and palm orientation, bear-like facial proportions and shallow material modeling limit execution. Clean decoration and compact spatial balance remain strengths.

Score breakdown

CategoryDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Task & likeness7.5/107.5/10
Anatomy & construction7.5/106.5/10
Space & placement8.0/108.0/10
Light & reflections7.0/107.0/10
Purposeful detail7.5/107.5/10
Artistry & character8.0/107.0/10
Materials & effects7.5/107.5/10
Visual integrity6.5/106.5/10

Benchmark task

DeepSeek V4.1 Flash 1017

A whale and a tiny shrimp examine one another through bubble lenses, with an octopus nearby. The scene tests interacting characters, differences in scale and transparent materials.

Qwen3.8 Max 0902

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

Mona Lisa

Same task instructions

Precise visual recall and portrait reconstruction.

The judgment

DeepSeek V4.1 Flash 1017

A coherent graphic interpretation with controlled contours, modeled facial volume and purposeful portrait details. Replication remains limited by the frontal pose, enlarged face, altered expression and ambiguous crossed hands. Landscape layering provides depth, while schematic fabric, smooth surfaces and tonal bands constrain the finish.

Qwen3.8 Max 0902

A recognizable, cohesive Mona Lisa interpretation with readable landscape layers and a restrained expression. Continuous body construction and clean contours support readability, but broad hands, simplified drapery, frontal symmetry and limited facial volume keep the execution basic and uneven.

Score breakdown

CategoryDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Task & likeness5.0/104.5/10
Anatomy & construction5.0/103.5/10
Space & placement6.0/105.0/10
Light & reflections6.0/105.0/10
Purposeful detail5.5/105.0/10
Artistry & character5.5/105.0/10
Materials & effects5.5/103.5/10
Visual integrity6.0/105.0/10

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

DeepSeek V4.1 Flash 1017

A coherent, colorful beach illustration with controlled curves, clean layering and varied readable accessories. Castle details and small animal features strengthen its finish. Schematic airborne animals, uncertain board support, shallow architectural depth and decorative reflections limit physical coherence and drawing sophistication.

Qwen3.8 Max 0902

A strong stylized beach illustration with coherent sunset color, lively dolphin arcs and balanced activity. Clean contours, readable ground contact and an aligned reflection support the finish. Schematic anatomy, sparse small-subject features, flat materials and repetitive water highlights limit physical depth and refinement.

Score breakdown

CategoryDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Task & likeness7.0/108.5/10
Anatomy & construction5.5/107.5/10
Space & placement5.5/107.5/10
Light & reflections6.0/108.0/10
Purposeful detail6.5/107.0/10
Artistry & character5.0/108.0/10
Materials & effects5.5/106.5/10
Visual integrity5.5/108.5/10

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

DeepSeek V4.1 Flash 1017

This benchmark has not been assessed yet.

Qwen3.8 Max 0902

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

DeepSeek V4.1 Flash 1017

An appealing cartoon with recognizable riders, expressive faces and a cohesive twilight palette. Clean shapes support the composition, but ambiguous limb overlaps, weak seat contact and loosely resolved steering limit physical coherence. Lighting and water effects are decorative, with modest material differentiation and drawing complexity.

Qwen3.8 Max 0902

The riding arrangement and steering action are readable, supported by coherent visible attachments and useful character details. Clean shapes, strong color separation and clustered foam make the scene appealing and active. Stiff anatomy, crowded controls, limited directional lighting and simple surface treatments constrain sophistication.

Score breakdown

CategoryDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Task & likeness8.0/108.0/10
Anatomy & construction7.0/107.0/10
Space & placement7.0/107.0/10
Light & reflections6.5/106.5/10
Purposeful detail7.0/107.0/10
Artistry & character7.0/106.5/10
Materials & effects6.5/106.0/10
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

DeepSeek V4.1 Flash 1017

An expressive, controlled illustration with continuous body construction, substantial bicycle detail and effective landscape depth. Unclear foot-to-pedal and wing-to-handlebar contacts limit physical conviction and local readability. Purposeful detail and composition are stronger than directional lighting and material treatment.

Qwen3.8 Max 0902

An appealing graphic illustration with a recognizable pelican, readable bicycle and clean coastal composition. Steering contact and one connected pedal support the action. Ambiguous neck-to-torso construction, an unclear opposing pedal connection, shallow space and limited material and lighting effects constrain its execution.

Score breakdown

CategoryDeepSeek V4.1 Flash 1017Qwen3.8 Max 0902
Task & likeness8.5/108.5/10
Anatomy & construction7.0/106.5/10
Space & placement7.5/107.0/10
Light & reflections6.5/106.0/10
Purposeful detail7.5/107.5/10
Artistry & character7.0/107.5/10
Materials & effects7.0/106.0/10
Visual integrity7.5/108.0/10

Benchmark task

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