STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek-V4.1-Flash vs Gemini 4 Argon

Gemini 4 Argon leads DeepSeek-V4.1-Flash by 17.4 points on StealthMark, 67.4 to 50.0. It leads on 8 of 9 benchmarks, including Latch, and DeepSeek-V4.1-Flash on 1, including Foresight. 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

50.0/100Overall rank 16/53
67.4/100Overall rank 5/53

General Intelligence

48.5/100
63.6/100

Visual Intelligence

53.0/100
74.4/100

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

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek-V4.1-Flash
  • Gemini 4 Argon
  • Other models
  • Median

DATASHEET

Specs and pricing

DeepSeek-V4.1-Flash is 8.8× cheaper per output token and runs 1.7× faster in our speed test. Gemini 4 Argon scores higher on StealthMark. Both take about 1M tokens of context.

  • DeepSeek-V4.1-Flash
  • Gemini 4 Argon
  • Other models
  • Median
PricePer 1M output tokens, input below
DeepSeek-V4.1-Flash: $1.138.8× cheaper$0.28 inputGemini 4 Argon: $10$2 input
Context windowTokens per request, max output below
DeepSeek-V4.1-Flash: 1MTied384K max outputGemini 4 Argon: 1MTied1M max output
Output speedTokens per second, our measurement
DeepSeek-V4.1-Flash: 2421.7× fastertokens/sGemini 4 Argon: 144tokens/s
SizeTotal and active parameters
DeepSeek-V4.1-Flash: 763B16B activeGemini 4 Argon: Not disclosed
Developer
DeepSeek-AIGoogle
Released
10 Sep 202613 Oct 2026
Origin
ChinaUnited States
Input → output
Text, image → textText, image, audio, video, PDF → text
Architecture
20-layer encoder + 20-layer decoder with CSA2, Single-Pass mHC, Engram n-gram memory and DSpark/MTPSparse mixture-of-experts (MoE) transformer with native multimodal inputs

Full datasheets, every price and sourceDeepSeek-V4.1-Flash ↗Gemini 4 Argon ↗

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 55.4/100Rank 12/47

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

Gemini 4 Argon 48.6/100Rank 19/47

Survived 1 of 3
Foresight: complete playing field
Level 36 ptsTurn 7 / 20

Points per level

LevelDeepSeek-V4.1-FlashGemini 4 Argon
Level 1Second Thoughts
16 ptsOut of lives
26 ptsSurvived
Level 2Pressure Pot
7 ptsOut of lives
9 ptsOut of lives
Level 3Hide or Flight
18 ptsSurvived
6 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 65.2/100Rank 19/48

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

Gemini 4 Argon 82.6/100Rank 6/48

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

Points per level

LevelDeepSeek-V4.1-FlashGemini 4 Argon
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
18.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
20.6 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

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.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashGemini 4 Argon
State at 600 ms23.5/2524.5/25
Camera and placement13.5/1514.5/15
Reflections30.0/12050.5/120
Materials and scale8.0/108.5/10
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

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.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashGemini 4 Argon
Task & likeness7.0/107.0/10
Anatomy & construction6.5/106.5/10
Space & placement6.5/107.5/10
Light & reflections6.0/107.5/10
Purposeful detail7.0/108.0/10
Artistry & character7.5/107.0/10
Materials & effects7.0/107.0/10
Visual integrity7.0/107.5/10

Benchmark task

DeepSeek-V4.1-Flash

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.

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.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

DeepSeek-V4.1-Flash

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.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashGemini 4 Argon
Task & likeness3.5/106.5/10
Anatomy & construction3.0/106.5/10
Space & placement4.5/106.5/10
Light & reflections4.5/107.0/10
Purposeful detail3.0/106.0/10
Artistry & character4.0/106.5/10
Materials & effects3.0/107.0/10
Visual integrity5.5/107.0/10

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

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.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashGemini 4 Argon
Task & likeness8.0/109.0/10
Anatomy & construction5.5/107.5/10
Space & placement6.5/108.5/10
Light & reflections6.5/108.5/10
Purposeful detail5.5/109.0/10
Artistry & character5.0/108.0/10
Materials & effects6.0/108.0/10
Visual integrity5.5/108.0/10

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

This benchmark has not been assessed yet.

Gemini 4 Argon

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

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.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashGemini 4 Argon
Task & likeness5.0/108.5/10
Anatomy & construction4.0/108.0/10
Space & placement5.5/107.5/10
Light & reflections6.0/107.5/10
Purposeful detail3.5/108.5/10
Artistry & character4.0/108.5/10
Materials & effects5.0/108.0/10
Visual integrity6.0/108.0/10

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

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.

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.

Score breakdown

CategoryDeepSeek-V4.1-FlashGemini 4 Argon
Task & likeness8.5/109.0/10
Anatomy & construction7.0/108.5/10
Space & placement7.5/108.0/10
Light & reflections7.0/108.0/10
Purposeful detail6.5/108.5/10
Artistry & character8.0/108.5/10
Materials & effects7.0/108.5/10
Visual integrity8.0/108.5/10

Benchmark task

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