STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Gemini 3.8 Flash vs MiniMax M3.1 Flash

Gemini 3.8 Flash leads MiniMax M3.1 Flash by 2.0 points on StealthMark, 47.9 to 45.9. It leads on 5 of 9 benchmarks, including both games, and MiniMax M3.1 Flash on 4. MiniMax M3.1 Flash scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

47.9/100Overall rank 20/53
45.9/100Overall rank 24/53

General Intelligence

43.9/100
35.8/100

Visual Intelligence

55.2/100
62.6/100

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

BENCHMARK BY BENCHMARK

Where each model leads

  • Gemini 3.8 Flash
  • MiniMax M3.1 Flash
  • Other models
  • Median

DATASHEET

Specs and pricing

Both take about 1M tokens of context.

  • Gemini 3.8 Flash
  • MiniMax M3.1 Flash
  • Other models
  • Median
PricePer 1M output tokens, input below
Gemini 3.8 Flash: $3.75$0.75 inputMiniMax M3.1 Flash: No list price
Context windowTokens per request, max output below
Gemini 3.8 Flash: 1MTied64K max outputMiniMax M3.1 Flash: 1MTied
Output speedTokens per second, our measurement
Gemini 3.8 Flash: 170tokens/sMiniMax M3.1 Flash: Not measured
SizeTotal and active parameters
Gemini 3.8 Flash: Not disclosedMiniMax M3.1 Flash: 428B23B active
Developer
GoogleMiniMax
Released
2 Sep 2026Not published
Origin
United StatesNot published
Input → output
Text, image, video, audio, PDF → textText, image, video → text
Architecture
Not publishedMixture-of-Experts with MiniMax Sparse Attention and native multimodal encoder

Full datasheets, every price and sourceGemini 3.8 Flash ↗MiniMax M3.1 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.

Gemini 3.8 Flash 45.4/100Rank 20/47

Survived 1 of 3
Foresight: complete playing field
Level 311 ptsTurn 17 / 20

MiniMax M3.1 Flash 30.7/100Rank 28/47

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

Points per level

LevelGemini 3.8 FlashMiniMax M3.1 Flash
Level 1Second Thoughts
4 ptsOut of lives
6 ptsOut of lives
Level 2Pressure Pot
10 ptsSurvived
5 ptsOut of lives
Level 3Hide or Flight
11 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.

Gemini 3.8 Flash 72.9/100Rank 14/48

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

MiniMax M3.1 Flash 21.9/100Rank 38/48

Cleared 2 of 5
Latch: complete playing field
Level 517.2 ptsTurn 24 / 40

Points per level

LevelGemini 3.8 FlashMiniMax M3.1 Flash
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
8.6 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
18.8 ptsCleared
5 ptsOut of turns
Level 4Passing bay
17.8 ptsClearedFinished early · 1 beacon left
4.4 ptsFinished early
Level 5Second thoughts
20.6 ptsCleared
17.2 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

Gemini 3.8 Flash

Crimson is carried well down the camera-facing surface, supporting its earlier interaction. The depiction remains highly simplified, with imperfect material rendering. Isolated wall and floor images and a few highlights provide scant reflective evidence; displaced first reflections, missing receding chains and absent nested sphere and emitter imagery leave the room's optical structure largely unsupported.

MiniMax M3.1 Flash

The sphere placement, separate airborne black blob, recent cyan contact and elongated crimson aftermath support the required gross physical state. The reflection system remains severely incomplete: isolated side images, broad metallic bands and sparse light patches replace extensive mirror repetitions and curved nested imagery.

Score breakdown

CategoryGemini 3.8 FlashMiniMax M3.1 Flash
State at 600 ms22.5/2520.0/25
Camera and placement11.0/1510.0/15
Reflections4.5/12024.0/120
Materials and scale7.0/108.0/10
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

Gemini 3.8 Flash

The dominant four-point silhouette, luminous color progression, raised brows and enormous grin closely fulfill the brief. Attached, secondary limbs support the exuberant expression. Clean facial drawing and glossy eyes give strong character, while shallow depth, minimally articulated extremities and visible steps in the outer glow limit refinement.

MiniMax M3.1 Flash

The sculptural M, confident grin and miniature theatrical pose closely fulfill the brief. Controlled gradients and clean shapes give the character volume and appeal. Moderate drawing complexity, an apparently separated shoe and ambiguous grounding limit the finish.

Score breakdown

CategoryGemini 3.8 FlashMiniMax M3.1 Flash
Task & likeness8.0/107.5/10
Anatomy & construction6.0/106.0/10
Space & placement6.5/107.0/10
Light & reflections7.0/106.0/10
Purposeful detail5.0/105.0/10
Artistry & character3.5/106.0/10
Materials & effects5.0/107.0/10
Visual integrity6.5/106.0/10

Benchmark task

Gemini 3.8 Flash

A luminous star-shaped creature tests expressive features, a clear silhouette and smooth colour transitions.

MiniMax M3.1 Flash

A small robot with an oversized angular head presents a glowing object. The scene tests character proportions, gesture and contrasting materials.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

Gemini 3.8 Flash

The dark clothing, overlapping hands and hazy landscape make the Mona Lisa reference recognizable. Replication is limited by the frontal, elongated face, heavy mouth and chin, and poorly resolved hands, wrists and forearm. Soft shading gives some volume, but muddy transitions, blunt landscape shapes and rigid facial modeling weaken the portrait’s expression and painterly character.

MiniMax M3.1 Flash

A coherent decorative portrait combines layered hair, garment contours, linked trim and atmospheric scenery. These provide meaningful drawing complexity, but likeness remains limited by the frontal elongated face and altered clothing. Compressed hands, abrupt facial shading and cluttered local edges leave the portrait uneven.

Score breakdown

CategoryGemini 3.8 FlashMiniMax M3.1 Flash
Task & likeness3.0/104.0/10
Anatomy & construction2.0/104.5/10
Space & placement3.5/105.5/10
Light & reflections3.0/104.5/10
Purposeful detail5.0/105.5/10
Artistry & character3.0/106.0/10
Materials & effects5.0/105.5/10
Visual integrity1.0/105.5/10

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

Gemini 3.8 Flash

A vivid purple-and-gold sunset anchors an appealing beach composition with dolphins, birds, a turtle and playful accessories. Palm silhouettes frame the bright reflection effectively. Sparse animal anatomy, wirelike palm foliage, conspicuously regular reflection bands and limited surface texture keep the execution below exceptional.

MiniMax M3.1 Flash

A controlled, detailed beach illustration with expressive animals, coherent depth and accomplished foliage and accessory drawing. Its warm palette and varied contours sustain visual interest. Simplified anatomy and object volumes limit physical conviction, while reflection streaks crossing dry-looking sand and generic shadows weaken the lighting.

Score breakdown

CategoryGemini 3.8 FlashMiniMax M3.1 Flash
Task & likeness9.0/108.5/10
Anatomy & construction7.0/107.0/10
Space & placement7.0/107.5/10
Light & reflections8.0/106.0/10
Purposeful detail7.0/108.0/10
Artistry & character7.0/106.5/10
Materials & effects7.0/106.5/10
Visual integrity8.0/107.5/10

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

Gemini 3.8 Flash

This benchmark has not been assessed yet.

MiniMax M3.1 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

Gemini 3.8 Flash

Expressive animals, a bold diagonal hull and sweeping spray create an appealing action scene. The raccoon's support on the dog's back is unclear, and the dog lacks a readable paw-to-control grip and connected steering assembly. Clean graphic shapes and lively accessories are stronger than the anatomical construction. Sunset illumination and reflections remain largely decorative.

MiniMax M3.1 Flash

An expressive, coherent cartoon clearly demonstrates the requested riding and steering relationship. Layered animal shapes, readable vehicle depth and purposeful facial details support its drawing quality. Ambiguous grips, sparse cast shadows and simplified material responses limit physical precision.

Score breakdown

CategoryGemini 3.8 FlashMiniMax M3.1 Flash
Task & likeness7.0/109.0/10
Anatomy & construction6.0/108.0/10
Space & placement7.0/108.0/10
Light & reflections6.5/106.0/10
Purposeful detail7.5/107.5/10
Artistry & character7.5/107.5/10
Materials & effects7.5/107.0/10
Visual integrity7.5/108.0/10

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

Different task instructions

Subject construction and spatial relationships.

The judgment

Gemini 3.8 Flash

The pelican’s enormous bill, lively feathers and orange bicycle create a clear, appealing composition. Basket contents, spokes and facial details reward inspection. Both legs connect to the body, but foot-to-pedal placement and wing-to-handlebar contact are ambiguous. Bicycle mechanics and lighting remain schematic, limiting an otherwise polished illustration.

MiniMax M3.1 Flash

A controlled coastal illustration with a clear pelican silhouette, detailed wheels and accomplished feather and bill drawing. Continuous body construction and grounded wheels support the scene. Ambiguous leg, pedal and steering contacts weaken the riding mechanics; approximate directional lighting and simplified materials limit physical conviction.

Score breakdown

CategoryGemini 3.8 FlashMiniMax M3.1 Flash
Task & likeness9.0/108.5/10
Anatomy & construction7.5/106.5/10
Space & placement7.5/108.0/10
Light & reflections7.0/107.0/10
Purposeful detail8.5/107.5/10
Artistry & character8.0/106.5/10
Materials & effects7.0/107.0/10
Visual integrity8.0/106.5/10

Benchmark task

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