STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Cat Jam Free vs DeepSeek-V4.1-Flash

DeepSeek-V4.1-Flash leads Cat Jam Free by 16.5 points on StealthMark, 50.0 to 33.5. It leads on 8 of 9 benchmarks, including both games, and Cat Jam Free on 1. DeepSeek-V4.1-Flash scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
Model guide ↗
All results ↗

Overall StealthMark

33.5/100Overall rank 40/53
50.0/100Overall rank 16/53

General Intelligence

27.7/100
48.5/100

Visual Intelligence

43.0/100
53.0/100

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

NeitherApache-2.0
Open modelMIT

BENCHMARK BY BENCHMARK

Where each model leads

  • Cat Jam Free
  • DeepSeek-V4.1-Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

  • Cat Jam Free
  • DeepSeek-V4.1-Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
Cat Jam Free: No list priceDeepSeek-V4.1-Flash: $1.13$0.28 input
Context windowTokens per request, max output below
Cat Jam Free: Not publishedDeepSeek-V4.1-Flash: 1M384K max output
Output speedTokens per second, our measurement
Cat Jam Free: Not measuredDeepSeek-V4.1-Flash: 242tokens/s
SizeTotal and active parameters
Cat Jam Free: Not disclosedDeepSeek-V4.1-Flash: 763B16B active
Developer
Not publishedDeepSeek-AI
Released
Not published10 Sep 2026
Origin
Not publishedChina
Input → output
Not publishedText, image → text
Architecture
Not published20-layer encoder + 20-layer decoder with CSA2, Single-Pass mHC, Engram n-gram memory and DSpark/MTP

Full datasheets, every price and sourceDeepSeek-V4.1-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.

Cat Jam Free 33.8/100Rank 26/47

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

DeepSeek-V4.1-Flash 55.4/100Rank 12/47

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

Points per level

LevelCat Jam FreeDeepSeek-V4.1-Flash
Level 1Second Thoughts
5 ptsOut of lives
16 ptsOut of lives
Level 2Pressure Pot
6 ptsOut of lives
7 ptsOut of lives
Level 3Hide or Flight
9 ptsSurvived
18 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.

Cat Jam Free 33.9/100Rank 33/48

Cleared 2 of 5
Latch: complete playing field
Level 56 ptsTurn 25 / 40

DeepSeek-V4.1-Flash 65.2/100Rank 19/48

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

Points per level

LevelCat Jam FreeDeepSeek-V4.1-Flash
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
9 ptsCleared
Level 3Relay vault
10 ptsFinished early
17.2 ptsClearedFinished early · 3 beacons left
Level 4Passing bay
10.8 ptsFinished early
18.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
6 ptsFinished early
20.6 ptsCleared

Newton's Mirror

Same task instructions

Physics, perspective and recursive reflections, tested together. Explore the test ↗

The judgment

Cat Jam Free

The image conveys a supported central sphere, separate black paint and crimson below cyan. Its contact and transport story is partially resolved. The exterior cutaway camera and largely missing mirror system dominate the limitations; isolated discs and smooth highlights provide little coherent optical structure.

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.

Score breakdown

CategoryCat Jam FreeDeepSeek-V4.1-Flash
State at 600 ms14.0/2523.5/25
Camera and placement4.0/1513.5/15
Reflections3.5/12030.0/120
Materials and scale4.0/108.0/10
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

Cat Jam Free

A coherent, restrained cat illustration captures the pale palette and intent eyes. Its central expressive requirement—the committed forward-and-down neck bob—is insufficiently articulated. Simple geometry, faint paw construction and minimal surface detail limit the physical presence and finish.

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.

Score breakdown

CategoryCat Jam FreeDeepSeek-V4.1-Flash
Task & likeness5.5/107.0/10
Anatomy & construction5.5/106.5/10
Space & placement6.0/106.5/10
Light & reflections6.0/106.0/10
Purposeful detail4.0/107.0/10
Artistry & character5.5/107.5/10
Materials & effects5.0/107.0/10
Visual integrity6.5/107.0/10

Benchmark task

Cat Jam Free

An ivory cat nods intently to music beside a tiny speaker. The scene tests feline anatomy, movement conveyed through a still pose and the contrast between pale fur and woven fabric.

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.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

Cat Jam Free

The portrait is recognizable and cleanly assembled, but replication remains basic. Its frontal symmetry, elongated silhouette, simplified facial likeness and unresolved hands differ markedly from the original. Modest skin gradients provide volume, while clothing and landscape rely on broad, flat shapes.

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.

Score breakdown

CategoryCat Jam FreeDeepSeek-V4.1-Flash
Task & likeness2.5/103.5/10
Anatomy & construction2.0/103.0/10
Space & placement4.0/104.5/10
Light & reflections3.5/104.5/10
Purposeful detail3.0/103.0/10
Artistry & character3.0/104.0/10
Materials & effects2.5/103.0/10
Visual integrity5.5/105.5/10

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

Cat Jam Free

The scene clearly supplies the requested beach subjects and playful activity. Clean silhouettes and warm gradients support readability, but elementary drawing, ambiguous parasol construction, weak grounding and a rigid sun reflection limit its depth and finish.

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.

Score breakdown

CategoryCat Jam FreeDeepSeek-V4.1-Flash
Task & likeness7.0/108.0/10
Anatomy & construction4.5/105.5/10
Space & placement4.5/106.5/10
Light & reflections4.0/106.5/10
Purposeful detail4.0/105.5/10
Artistry & character4.5/105.0/10
Materials & effects4.5/106.0/10
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

Cat Jam Free

This benchmark has not been assessed yet.

DeepSeek-V4.1-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

Cat Jam Free

An appealing cartoon demonstrates the back-riding arrangement through expressive faces and clean shapes. Uncertain steering contact, indistinct deck support and weak hull-water interaction limit physical coherence. Smooth gradients add volume, but simple rounded construction and sparse material detail constrain complexity and finish.

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.

Score breakdown

CategoryCat Jam FreeDeepSeek-V4.1-Flash
Task & likeness6.0/105.0/10
Anatomy & construction5.0/104.0/10
Space & placement5.0/105.5/10
Light & reflections5.0/106.0/10
Purposeful detail6.0/103.5/10
Artistry & character5.0/104.0/10
Materials & effects5.0/105.0/10
Visual integrity4.5/106.0/10

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

Cat Jam Free

A coherent cartoon with readable bicycle placement, controlled outlines and modest surface shading. The separated-looking upper bill weakens pelican likeness; schematic limbs, uncertain gripping contact and simplified mechanics constrain construction. Opaque wheel interiors flatten spatial relationships. Limited feather complexity and directional lighting keep the finish modest.

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.

Score breakdown

CategoryCat Jam FreeDeepSeek-V4.1-Flash
Task & likeness7.0/108.5/10
Anatomy & construction5.0/107.0/10
Space & placement6.0/107.5/10
Light & reflections5.0/107.0/10
Purposeful detail5.5/106.5/10
Artistry & character5.5/108.0/10
Materials & effects6.5/107.0/10
Visual integrity6.5/108.0/10

Benchmark task

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