STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek V4.1 Flash 0910 vs DeepSeek V4.1 Flash 1017

DeepSeek V4.1 Flash 1017 leads DeepSeek V4.1 Flash 0910 by 9.5 points on StealthMark, 59.5 to 50.0. It leads on 6 of 9 benchmarks, including Latch, and DeepSeek V4.1 Flash 0910 on 3, including Foresight. DeepSeek V4.1 Flash 1017 scores higher on Ground Truth.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

50.0/100Overall rank 16/50
59.5/100Overall rank 9/50

General Intelligence

48.3/100
56.9/100

Visual Intelligence

53.3/100
64.1/100

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek V4.1 Flash 0910
  • DeepSeek V4.1 Flash 1017
  • 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 091055.4/100Rank 11/43

Survived 1 of 3 levels
Foresight: complete playing field
Level 318 ptsTurn 20 / 20

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

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

Points per level

LevelDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Level 1Second Thoughts
16 ptsOut of lives
26 ptsSurvived
Level 2Pressure Pot
7 ptsOut of lives
7 ptsOut of lives
Level 3Hide or Flight
18 ptsSurvived
10 ptsOut of lives

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 091065.2/100Rank 18/43

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

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

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

Points per level

LevelDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9 ptsCleared
9.8 ptsCleared
Level 3Relay vault
17.2 ptsClearedFinished early · 3 beacons left
19.2 ptsCleared
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
16.4 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

DeepSeek V4.1 Flash 0910

The first wall and floor images provide limited reflection geometry, but the room's mirror recurrence is substantially incomplete, particularly the outer-edge chains and lateral sightlines. The main sphere and its large reflected images lack ordered, curved room and virtual-sphere imagery. Repeated emitter mapping is missing from both planar mirrors and spherical surfaces.

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.

Score breakdown

CategoryDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
State at 600 ms23.0/2523.0/25
Camera and placement13.5/1513.5/15
Reflections30.0/12034.0/120
Materials and scale9.0/109.0/10
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

Same task instructions

Visual construction and creative interpretation.

The judgment

DeepSeek V4.1 Flash 0910

Expressive faces, cobalt coloring and a flowing diagonal composition make the mutual inspection charming. Execution is uneven: the long pointed flipper lacks a convincing grip, the enlarged shrimp face appears detached from its body, and the large lens is oval. Flat anatomical shading and an unexplained purple ringed patch beneath the whale weaken the requested polished depth.

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.

Score breakdown

CategoryDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Task & likeness7.0/107.5/10
Anatomy & construction6.5/107.5/10
Space & placement6.5/108.0/10
Light & reflections6.0/107.0/10
Purposeful detail7.0/107.5/10
Artistry & character7.5/108.0/10
Materials & effects7.0/107.5/10
Visual integrity7.0/106.5/10

Benchmark task

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.

Mona Lisa

Same task instructions

Precise visual recall and portrait reconstruction.

The judgment

DeepSeek V4.1 Flash 0910

The centered portrait, dark hair, crossed hands and muted landscape make the reference recognizable. Replication is limited by the frontal pose, staring eyes and weakly defined smile. Hands are overlapping oval masses with almost no finger articulation, while wrists disappear into sleeves. Soft gradients suggest volume, but broad, indistinct surfaces and faint stray lines leave the drawing basic and uneven.

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.

Score breakdown

CategoryDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Task & likeness3.5/105.0/10
Anatomy & construction3.0/105.0/10
Space & placement4.5/106.0/10
Light & reflections4.5/106.0/10
Purposeful detail3.0/105.5/10
Artistry & character4.0/105.5/10
Materials & effects3.0/105.5/10
Visual integrity5.5/106.0/10

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 0910

The glowing sunset, silhouetted palm and playful foreground create a coherent, appealing beach illustration. Birds, crab, boat and reflections fulfill the brief. The airborne animals have weakly defined anatomy and little convincing splash interaction. Broad, blurred reflections and largely flat surfaces limit depth and finish.

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.

Score breakdown

CategoryDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Task & likeness8.0/107.0/10
Anatomy & construction5.5/105.5/10
Space & placement6.5/105.5/10
Light & reflections6.5/106.0/10
Purposeful detail5.5/106.5/10
Artistry & character5.0/105.0/10
Materials & effects6.0/105.5/10
Visual integrity5.5/105.5/10

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 0910

This benchmark has not been assessed yet.

DeepSeek V4.1 Flash 1017

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 0910

The sunset palette and silhouetted grouping establish an appealing scene. A masked rider sits above a pointed-eared dog, but merged body shapes leave limbs and support unresolved. The boatlike craft lacks readable steering controls, so the requested action is unclear. Sparse facial marks and glowing spray dots offer limited detail.

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.

Score breakdown

CategoryDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Task & likeness4.0/108.0/10
Anatomy & construction4.0/107.0/10
Space & placement5.0/107.0/10
Light & reflections6.0/106.5/10
Purposeful detail3.0/107.0/10
Artistry & character3.5/107.0/10
Materials & effects4.0/106.5/10
Visual integrity6.5/108.0/10

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 0910

A recognizable pelican rides a brightly colored bicycle against a striking sunset. The sweeping bill, trailing scarf and circular wheels create a controlled composition. Both legs connect, but pedal linkage, body support and the wing's handlebar grip remain loosely resolved. Clean vector shapes and feather details work well; simplified shading limits volume and integration with the sunset light.

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.

Score breakdown

CategoryDeepSeek V4.1 Flash 0910DeepSeek V4.1 Flash 1017
Task & likeness8.5/108.5/10
Anatomy & construction7.0/107.0/10
Space & placement7.5/107.5/10
Light & reflections7.0/106.5/10
Purposeful detail6.5/107.5/10
Artistry & character8.0/107.0/10
Materials & effects7.0/107.0/10
Visual integrity8.0/107.5/10

Benchmark task

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