STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek-V4.1-Flash-1017 vs Qwen4-Max-Preview

DeepSeek-V4.1-Flash-1017 leads Qwen4-Max-Preview by 0.3 points on StealthMark, 59.1 to 58.8. Qwen4-Max-Preview leads on 6 of 9 benchmarks, including Foresight, and DeepSeek-V4.1-Flash-1017 on 3, including Latch. Qwen4-Max-Preview scores higher on Beach, with its largest category advantage in artistry & character.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

59.1/100Overall rank 11/58
58.8/100Overall rank 12/58

General Intelligence

56.7/100
54.6/100

Visual Intelligence

63.5/100
66.3/100

Reasoning efficiency

How many reasoning tokens a model needs for the quality it delivers.

Single-step reasoning How much it reasons to understand a task

Multi-step reasoning How much it keeps reasoning as a task goes on

Cost efficiency

How much Performance you get for your money.

  • Qwen4-Max-PreviewNot measured

Open or local

Open modelMIT

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek-V4.1-Flash-1017
  • Qwen4-Max-Preview
  • Other models
  • Median

DATASHEET

Specs and pricing

DeepSeek-V4.1-Flash-1017 scores higher on StealthMark and runs 4.7× faster in our speed test.

  • DeepSeek-V4.1-Flash-1017
  • Qwen4-Max-Preview
  • Other models
  • Median
PricePer 1M output tokens, input below
DeepSeek-V4.1-Flash-1017: $1.20$0.30 inputQwen4-Max-Preview: No list price
Context windowTokens per request, max output below
DeepSeek-V4.1-Flash-1017: 1M384K max outputQwen4-Max-Preview: Not published
Output speedTokens per second, our measurement
DeepSeek-V4.1-Flash-1017: 3104.7× fastertokens/sQwen4-Max-Preview: 66tokens/s
SizeTotal and active parameters
DeepSeek-V4.1-Flash-1017: 763B16B activeEstimatedQwen4-Max-Preview: Not disclosed
Developer
DeepSeek-AINot published
Released
17 Oct 2026Not published
Origin
ChinaNot published
Input → output
Text, image → textNot published
Architecture
Sparse mixture-of-experts with a causal encoder-decoder design and native image understanding.Not published

Full datasheets, every price and sourceDeepSeek-V4.1-Flash-1017 ↗

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.

DeepSeek-V4.1-Flash-1017 52.9/100Rank 18/54

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

Qwen4-Max-Preview 57.5/100Rank 14/54

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

Points per level

LevelDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Level 1Second Thoughts
26 ptsSurvived
20 ptsSurvived
Level 2Pressure Pot
7 ptsOut of lives
12 ptsOut of lives
Level 3Hide or Flight
10 ptsOut of lives
10 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.

DeepSeek-V4.1-Flash-1017 73.9/100Rank 16/55

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

Qwen4-Max-Preview 67.3/100Rank 21/55

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

Points per level

LevelDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
8.8 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
19.2 ptsCleared
19.2 ptsCleared
Level 4Passing bay
16.4 ptsClearedFinished early · 3 beacons left
17.2 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.

Qwen4-Max-Preview

The main placement, compact airborne black and contrasting cyan/crimson interaction states are largely supported. Recognizable first mirror images earn substantial local credit despite modest silhouette and overlap errors. Most of the defining mirror system remains missing, especially nested spherical imagery, outer chains and repeated emitter mapping. Crimson also extends slightly too far down the facing surface.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
State at 600 ms23.0/2524.5/25
Camera and placement12.5/1514.0/15
Reflections34.0/12039.0/120
Materials and scale8.5/106.5/10
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

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.

Qwen4-Max-Preview

A coherent celestial character with readable costume layers, controlled ornament and coordinated luminous accents. Simplified joints, shallow frontal space and limited material modeling constrain construction and drawing complexity. The raised palm's orientation remains only partially demonstrated.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Task & likeness7.5/108.5/10
Anatomy & construction7.5/107.5/10
Space & placement8.0/107.5/10
Light & reflections7.0/107.0/10
Purposeful detail7.5/108.0/10
Artistry & character8.0/107.5/10
Materials & effects7.5/106.5/10
Visual integrity6.5/107.5/10

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.

Qwen4-Max-Preview

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

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.

Qwen4-Max-Preview

A coherent, recognizable interpretation with developed facial shading and purposeful portrait details. The frontal, nearly symmetric body, inflated sleeves and unresolved hand articulation substantially limit replication and construction. Layered scenery supplies basic depth, while uniformly smooth surfaces and schematic folds constrain material character and drawing complexity.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Task & likeness5.0/104.5/10
Anatomy & construction5.0/105.5/10
Space & placement6.0/105.0/10
Light & reflections6.0/106.5/10
Purposeful detail5.5/106.0/10
Artistry & character5.5/105.5/10
Materials & effects5.5/105.0/10
Visual integrity6.0/105.5/10

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

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.

Qwen4-Max-Preview

A coherent sunset illustration with sweeping palms, recognizable wildlife and varied, readable beach details. Atmospheric layering and controlled contours strengthen its character. Basic animal anatomy, overhead-looking foreground creatures and schematic cast shadows limit construction and physical depth.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Task & likeness7.0/108.5/10
Anatomy & construction5.5/108.0/10
Space & placement5.5/106.5/10
Light & reflections6.0/107.5/10
Purposeful detail6.5/108.0/10
Artistry & character5.0/108.5/10
Materials & effects5.5/106.5/10
Visual integrity4.5/107.0/10

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

DeepSeek-V4.1-Flash-1017

This benchmark has not been assessed yet.

Qwen4-Max-Preview

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.

Qwen4-Max-Preview

An expressive cartoon with purposeful accessory detail, readable steering and directional spray. The aligned sunset reflection adds physical coherence. Simplified joints and the frontal raccoon's uncertain seated support continue to limit anatomy, perspective and integrity.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Task & likeness8.0/108.0/10
Anatomy & construction7.0/107.5/10
Space & placement7.0/106.0/10
Light & reflections6.5/106.5/10
Purposeful detail7.0/108.0/10
Artistry & character7.0/106.5/10
Materials & effects6.5/107.0/10
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

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.

Qwen4-Max-Preview

A detailed coastal illustration with readable seated support, steering and pedal contacts. Continuous anatomy, coherent bicycle construction and purposeful small features support its expressive composition. Simplified limb articulation, modest perspective depth and weakly directional ground shadows limit physical conviction.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen4-Max-Preview
Task & likeness8.5/108.5/10
Anatomy & construction7.0/108.0/10
Space & placement7.5/107.5/10
Light & reflections6.5/106.5/10
Purposeful detail7.5/108.0/10
Artistry & character7.0/107.5/10
Materials & effects7.0/107.0/10
Visual integrity7.5/108.0/10

Benchmark task

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