STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek-V4.1-Flash-1017 vs Qwen3.6-27B

DeepSeek-V4.1-Flash-1017 leads Qwen3.6-27B by 26.8 points on StealthMark, 59.2 to 32.4. It leads on all 9 benchmarks. DeepSeek-V4.1-Flash-1017 scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

59.2/100Overall rank 9/53
32.4/100Overall rank 41/53

General Intelligence

56.8/100
25.6/100

Visual Intelligence

63.5/100
43.9/100

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
Local modelOpen model · Apache-2.0

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek-V4.1-Flash-1017
  • Qwen3.6-27B
  • Other models
  • Median

DATASHEET

Specs and pricing

DeepSeek-V4.1-Flash-1017 scores higher on StealthMark, is 3× cheaper per output token and runs 3.2× faster in our speed test. Both take about 1M tokens of context.

  • DeepSeek-V4.1-Flash-1017
  • Qwen3.6-27B
  • Other models
  • Median
PricePer 1M output tokens, input below
DeepSeek-V4.1-Flash-1017: $1.203× cheaper$0.30 inputQwen3.6-27B: $3.60$0.60 input
Context windowTokens per request, max output below
DeepSeek-V4.1-Flash-1017: 1MTied384K max outputQwen3.6-27B: 1.01MTied64K max output
Output speedTokens per second, our measurement
DeepSeek-V4.1-Flash-1017: 3103.2× fastertokens/sQwen3.6-27B: 96tokens/s
SizeTotal and active parameters
DeepSeek-V4.1-Flash-1017: 763B16B activeEstimatedQwen3.6-27B: 27BAll active
Developer
DeepSeek-AIQwen / Alibaba
Released
17 Oct 202622 Apr 2026
Origin
ChinaBoth
Input → output
Text, image → textText, image, video → text
Architecture
Sparse mixture-of-experts with a causal encoder-decoder design and native image understanding.Dense causal language model with vision encoder; hybrid Gated DeltaNet and gated attention; MTP-trained

Full datasheets, every price and sourceDeepSeek-V4.1-Flash-1017 ↗Qwen3.6-27B ↗

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 15/47

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

Qwen3.6-27B 37.8/100Rank 23/47

Survived 1 of 3
Foresight: complete playing field
Level 39 ptsTurn 20 / 20

Points per level

LevelDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Level 1Second Thoughts
26 ptsSurvived
9 ptsOut of lives
Level 2Pressure Pot
7 ptsOut of lives
6 ptsOut of lives
Level 3Hide or Flight
10 ptsOut of lives
9 ptsSurvived

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 13/48

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

Qwen3.6-27B 28.5/100Rank 35/48

Cleared 3 of 5
Latch: complete playing field
Level 511 ptsTurn 25 / 40

Points per level

LevelDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Level 1Hold the door
5.2 ptsCleared
4.8 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
8.8 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
19.2 ptsCleared
16.4 ptsClearedFinished early · 3 beacons left
Level 4Passing bay
16.4 ptsClearedFinished early · 3 beacons left
13.4 ptsFinished early
Level 5Second thoughts
20 ptsCleared
11 ptsFinished early

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.

Qwen3.6-27B

The artwork depicts a shaded sphere, distinct paint colors and a separate airborne black blob. Crimson's apex overlap does not establish its earlier interaction and transport, while cyan's recent contact remains unsupported. Horizontal centering supplies limited camera agreement, but the sphere, black blob and prominent panel have substantial placement or projection departures. A few planar echoes provide reflection evidence; isolated patches and gradients replace most of the required mirror structure.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen3.6-27B
State at 600 ms23.0/255.0/25
Camera and placement13.5/155.0/15
Reflections34.0/1208.0/120
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

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.

Qwen3.6-27B

An appealing decorative illustration with coordinated ornament, flowing panels and three glowing orbital lights. The arm arrangement reverses the requested sides. Uncertain neck continuity, concealed leg articulation, simplified paws, crowded chest jewelry and shallow surface modeling limit pose clarity and finish.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Task & likeness7.5/106.5/10
Anatomy & construction7.5/105.0/10
Space & placement8.0/106.5/10
Light & reflections7.0/105.5/10
Purposeful detail7.5/106.0/10
Artistry & character8.0/105.0/10
Materials & effects7.5/105.0/10
Visual integrity6.5/107.0/10

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.

Qwen3.6-27B

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.

Qwen3.6-27B

The portrait loosely evokes Mona Lisa through its palette and silhouette. Readable pupils, brows and lips provide limited detail, and the torso remains continuous. The frontal elongated face, unresolved chest-level limb forms, shallow landscape and pervasive blur substantially weaken likeness, anatomy and finish.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Task & likeness5.0/102.5/10
Anatomy & construction5.0/103.0/10
Space & placement6.0/104.0/10
Light & reflections6.0/104.0/10
Purposeful detail5.5/102.5/10
Artistry & character5.5/102.5/10
Materials & effects5.5/103.0/10
Visual integrity6.0/104.0/10

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.

Qwen3.6-27B

A recognizable sunset beach with balanced palms, clean shapes and effective warm–cool contrast. Small animals and play equipment address the brief, but rudimentary anatomy, uncertain water contacts, sparse reflections and flat materials keep the drawing basic or uneven.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Task & likeness7.0/107.5/10
Anatomy & construction5.5/105.0/10
Space & placement5.5/105.5/10
Light & reflections6.0/105.5/10
Purposeful detail6.5/104.5/10
Artistry & character5.0/105.5/10
Materials & effects5.5/105.5/10
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.

Qwen3.6-27B

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.

Qwen3.6-27B

A readable cartoon with balanced colors, clean shapes and a clearly supported raccoon. Continuous body construction and modest shading deserve credit. Rudimentary limbs, unresolved steering connections, stiff gestures and schematic water effects limit physical credibility and finish.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Task & likeness8.0/104.5/10
Anatomy & construction7.0/103.5/10
Space & placement7.0/106.0/10
Light & reflections6.5/105.5/10
Purposeful detail7.0/105.5/10
Artistry & character7.0/104.0/10
Materials & effects6.5/105.5/10
Visual integrity8.0/102.5/10

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.

Qwen3.6-27B

A lively, coherent illustration with recognizable pelican features, purposeful accessories and useful surface variation. Ambiguous neck layering, uncertain pedal engagement and an unresolved drivetrain limit construction. Aligned wheels and layered scenery establish placement, while inconsistent shadow direction and crowded overlaps constrain finish.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017Qwen3.6-27B
Task & likeness8.5/107.5/10
Anatomy & construction7.0/104.0/10
Space & placement7.5/106.5/10
Light & reflections6.5/105.0/10
Purposeful detail7.5/106.5/10
Artistry & character7.0/105.5/10
Materials & effects7.0/106.5/10
Visual integrity7.5/106.5/10

Benchmark task

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