STEALTHMARK · HEAD TO HEAD

All comparisons ↗

DeepSeek-V4.1-Flash-1017 vs GLM-5.3-Flash

DeepSeek-V4.1-Flash-1017 leads GLM-5.3-Flash by 10.4 points on StealthMark, 59.2 to 48.8. It leads on 5 of 9 benchmarks, including both games, and GLM-5.3-Flash on 4. DeepSeek-V4.1-Flash-1017 scores higher on Newton's Mirror, with its largest category advantage in reflections.

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All results ↗
Model guide ↗

Overall StealthMark

59.2/100Overall rank 9/53
48.8/100Overall rank 19/53

General Intelligence

56.8/100
42.2/100

Visual Intelligence

63.5/100
59.4/100

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
Local modelOpen model · MIT

BENCHMARK BY BENCHMARK

Where each model leads

  • DeepSeek-V4.1-Flash-1017
  • GLM-5.3-Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

DeepSeek-V4.1-Flash-1017 scores higher on StealthMark and runs 3.5× faster in our speed test. GLM-5.3-Flash is 2.4× cheaper per output token. Both take about 1M tokens of context.

  • DeepSeek-V4.1-Flash-1017
  • GLM-5.3-Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
DeepSeek-V4.1-Flash-1017: $1.20$0.30 inputGLM-5.3-Flash: $0.502.4× cheaper$0.15 input
Context windowTokens per request, max output below
DeepSeek-V4.1-Flash-1017: 1MTied384K max outputGLM-5.3-Flash: 1MTied131K max output
Output speedTokens per second, our measurement
DeepSeek-V4.1-Flash-1017: 3103.5× fastertokens/sGLM-5.3-Flash: 89tokens/s
SizeTotal and active parameters
DeepSeek-V4.1-Flash-1017: 763B16B activeEstimatedGLM-5.3-Flash: 320B18B active
Developer
DeepSeek-AIZ.AI
Released
17 Oct 202626 Aug 2026
Origin
ChinaNot published
Input → output
Text, image → textBoth
Architecture
Sparse mixture-of-experts with a causal encoder-decoder design and native image understanding.Hybrid sparse and linear attention MoE

Full datasheets, every price and sourceDeepSeek-V4.1-Flash-1017 ↗GLM-5.3-Flash ↗

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

GLM-5.3-Flash 49.0/100Rank 27/472 of 3 levels

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

Points per level

LevelDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Level 1Second Thoughts
26 ptsSurvived
9 ptsOut of lives
Level 2Pressure Pot
7 ptsOut of lives
Pending
Level 3Hide or Flight
10 ptsOut of lives
16 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

GLM-5.3-Flash 4.0/100Rank 48/483 of 5 levels

3 of 5 played
Latch: complete playing field
Level 30.6 ptsTurn 33 / 36

Points per level

LevelDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Level 1Hold the door
5.2 ptsCleared
4.4 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
5.2 ptsFinished early
Level 3Relay vault
19.2 ptsCleared
0.6 ptsFinished early
Level 4Passing bay
16.4 ptsClearedFinished early · 3 beacons left
Pending
Level 5Second thoughts
20 ptsCleared
Not played

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.

GLM-5.3-Flash

The setup is recognizable, but the paint interaction remains poorly established and off-center. The first wall and floor images provide coherent placement, scale, silhouette and occlusion cues, with faint lower echoes. Missing receding chains, nested imagery and ordered emitter mappings leave the reflection system heavily simplified. Dull shading does not convincingly depict polished steel or mirrors.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
State at 600 ms23.0/2514.0/25
Camera and placement13.5/159.0/15
Reflections34.0/12021.5/120
Materials and scale8.5/103.5/10
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.

GLM-5.3-Flash

The expressive emerald face, ivory horns, gold accents and fine veining closely match the brief. Rounded volumes and layered shading create an appealing mascot. Rear hoof placement is cramped, lighting is somewhat inconsistent, and conspicuous white patches behind the muzzle interrupt the finish. Surfaces remain visibly stylized rather than photographic.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Task & likeness7.5/108.5/10
Anatomy & construction7.5/107.5/10
Space & placement8.0/107.5/10
Light & reflections7.0/108.0/10
Purposeful detail7.5/107.5/10
Artistry & character8.0/107.5/10
Materials & effects7.5/107.5/10
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.

GLM-5.3-Flash

A rounded jade bull raising a hoof tests anatomy, balance and the appearance of polished stone and metal.

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.

GLM-5.3-Flash

The crossed arms, green dress and hazy landscape clearly evoke Mona Lisa. Replication is limited by the frontal pose, oversized eyes, elongated face and pronounced lips. Overlapping finger strips lack convincing knuckles and palm volume. The balanced framing and soft shading provide cohesion, but simplified anatomy, repetitive folds and blurred scenery keep the portrait basic.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Task & likeness5.0/104.5/10
Anatomy & construction5.0/104.5/10
Space & placement6.0/106.0/10
Light & reflections6.0/106.0/10
Purposeful detail5.5/105.0/10
Artistry & character5.5/105.0/10
Materials & effects5.5/105.5/10
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

Different 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.

GLM-5.3-Flash

Framing palms, a vivid sunset palette and balanced kite and umbrella create an appealing beach illustration. Layered water and shoreline give the scene depth, while aligned reflections reinforce the sunset. Small accessories add character and reward inspection. Figures and animals remain schematic, some overlaps are difficult to read, and simplified shadows and flat surfaces limit physical richness.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Task & likeness7.0/108.0/10
Anatomy & construction5.5/107.0/10
Space & placement5.5/108.0/10
Light & reflections6.0/108.0/10
Purposeful detail6.5/108.0/10
Artistry & character5.0/108.5/10
Materials & effects5.5/106.5/10
Visual integrity4.5/108.0/10

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-1017

This benchmark has not been assessed yet.

GLM-5.3-Flash

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.

GLM-5.3-Flash

Recognizable animals, a supported riding pose and an energetic diagonal composition make the scene readable. Character details and spray strengthen its appeal. Simple limb construction, limited directional lighting and an unresolved steering connection constrain the drawing's physical precision and complexity.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Task & likeness8.0/107.0/10
Anatomy & construction7.0/105.0/10
Space & placement7.0/106.0/10
Light & reflections6.5/105.0/10
Purposeful detail7.0/106.5/10
Artistry & character7.0/104.0/10
Materials & effects6.5/106.0/10
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

Different 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.

GLM-5.3-Flash

The pelican, bicycle and seaside setting form a clear, appealing illustration. Circular wheels, readable frame tubes and clean silhouettes support the action. The legs connect to the body, but the far foot's pedal contact and wing-to-handlebar junction are cramped. Simple shading, uniform wave marks and limited surface texture keep the rendering relatively flat.

Score breakdown

CategoryDeepSeek-V4.1-Flash-1017GLM-5.3-Flash
Task & likeness8.5/108.5/10
Anatomy & construction7.0/107.5/10
Space & placement7.5/107.5/10
Light & reflections6.5/106.5/10
Purposeful detail7.5/107.0/10
Artistry & character7.0/108.0/10
Materials & effects7.0/106.5/10
Visual integrity7.5/108.0/10

Benchmark task

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