STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Gemma 4 26B A4B vs MiMo-V2.6-Pro

MiMo-V2.6-Pro leads Gemma 4 26B A4B by 31.4 points on StealthMark, 47.9 to 16.5. It leads on all 9 benchmarks. MiMo-V2.6-Pro scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

16.5/100Overall rank 50/53
47.9/100Overall rank 21/53

General Intelligence

9.4/100
44.3/100

Visual Intelligence

28.9/100
54.3/100

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

  • Gemma 4 26B A4B

Open or local

Local modelOpen model · Apache 2.0
Open modelMIT

BENCHMARK BY BENCHMARK

Where each model leads

  • Gemma 4 26B A4B
  • MiMo-V2.6-Pro
  • Other models
  • Median

DATASHEET

Specs and pricing

Gemma 4 26B A4B is 2.9× cheaper per output token. MiMo-V2.6-Pro scores higher on StealthMark, takes 4× more context and runs 22% faster in our speed test.

  • Gemma 4 26B A4B
  • MiMo-V2.6-Pro
  • Other models
  • Median
PricePer 1M output tokens, input below
Gemma 4 26B A4B: $0.302.9× cheaper$0.09 inputMiMo-V2.6-Pro: $0.87$0.43 input
Context windowTokens per request, max output below
Gemma 4 26B A4B: 256KMiMo-V2.6-Pro: 1M4× larger128K max output
Output speedTokens per second, our measurement
Gemma 4 26B A4B: 95tokens/sMiMo-V2.6-Pro: 11622% fastertokens/s
SizeTotal and active parameters
Gemma 4 26B A4B: 25.2B3.8B activeMiMo-V2.6-Pro: 1.02T42B active
Developer
Google DeepMindXiaomi
Released
2 Apr 202621 Sep 2026
Origin
United StatesChina
Input → output
Text, image → textText, image, video, audio → text
Architecture
Mixture-of-Experts multimodal transformer with interleaved sliding-window and global attentionSparse Mixture-of-Experts; OpenRouter maps the route to the released Pro-RL checkpoint. The UltraSpeed edition is a separate route

Full datasheets, every price and sourceGemma 4 26B A4B ↗MiMo-V2.6-Pro ↗

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.

Gemma 4 26B A4B 4.1/100Rank 46/47

Survived 0 of 3
Foresight: complete playing field
Level 32 ptsTurn 9 / 20

MiMo-V2.6-Pro 54.6/100Rank 13/47

Survived 1 of 3
Foresight: complete playing field
Level 319 ptsTurn 20 / 20

Points per level

LevelGemma 4 26B A4BMiMo-V2.6-Pro
Level 1Second Thoughts
3 ptsOut of lives
4 ptsOut of lives
Level 2Pressure Pot
2 ptsOut of lives
9 ptsOut of lives
Level 3Hide or Flight
2 ptsOut of lives
19 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.

Gemma 4 26B A4B 4.5/100Rank 41/48

Cleared 2 of 5
Latch: complete playing field
Level 53 ptsTurn 40 / 40

MiMo-V2.6-Pro 52.6/100Rank 22/48

Cleared 5 of 5
Latch: complete playing field
Level 520.4 ptsTurn 28 / 40

Points per level

LevelGemma 4 26B A4BMiMo-V2.6-Pro
Level 1Hold the door
3 ptsCleared1 beacon left
5.2 ptsCleared
Level 2Crossfeed
6.2 ptsFinished early
9 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
15.2 ptsClearedFinished early · 3 beacons left
17.2 ptsClearedFinished early · 1 beacon left
Level 4Passing bay
11.8 ptsFinished early
16 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
3 ptsOut of turns
20.4 ptsCleared

Newton's Mirror

Same task instructions

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

The judgment

Gemma 4 26B A4B

Separate airborne black and contact-compatible paint flattening earn partial state credit. Settlement, adhesion and differentiated paint transport remain unresolved. The enlarged, low sphere and thin lamp strip substantially depart from the required camera, while the defining mirror structure is missing. Weak material appearance and oversized black paint limit material credit. The retained base total is 18/170; the floor-damage reward is 0, giving 18/180.

MiMo-V2.6-Pro

The main framing and visible paint-contact story are well supported. Major optical omissions dominate the result: sparse repetitions, undersized first images, missing outer chains and absent curved nested imagery prevent a coherent mirror-room system. The metallic forms remain convincing in volume but have a soft illustrative finish.

Score breakdown

CategoryGemma 4 26B A4BMiMo-V2.6-Pro
State at 600 ms10.0/2523.0/25
Camera and placement2.0/1512.0/15
Reflections0.0/12019.0/120
Materials and scale2.5/107.5/10
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

Gemma 4 26B A4B

An appealing, readable sparkle-creature with luminous colour and expressive eyes. Simple geometric construction limits sophistication, while sharp body points, ambiguous hand contact and a minimally resolved jar weaken the requested soft, plump character and treasure-presenting pose.

MiMo-V2.6-Pro

An appealing rabbit with balanced framing, expressive eyes and purposeful costume accents. Simple frontal construction limits anatomical and spatial accomplishment. The orange orb provides an effective luminous focal point, but unreadable wrist connections weaken the requested gestures and prevent stronger integrity credit.

Score breakdown

CategoryGemma 4 26B A4BMiMo-V2.6-Pro
Task & likeness5.5/106.5/10
Anatomy & construction4.5/105.0/10
Space & placement6.0/105.5/10
Light & reflections6.0/106.5/10
Purposeful detail5.5/106.5/10
Artistry & character4.0/105.0/10
Materials & effects6.0/106.5/10
Visual integrity7.0/106.0/10

Benchmark task

Gemma 4 26B A4B

A small luminous creature proudly holding an empty glass jar tests expression, transparent materials and the balance of character and prop.

MiMo-V2.6-Pro

A small rabbit in an explorer outfit floats with a luminous orb. The scene tests character anatomy, pose and the placement of geometric forms around it.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

Gemma 4 26B A4B

The centered dark-haired portrait provides a loose reference cue, but its elongated, nearly featureless face and undifferentiated torso fall far short of replication. Crossed hands, the subtle smile, clothing structure and landscape are unresolved. Clean silhouettes and soft gradients provide limited coherence.

MiMo-V2.6-Pro

The portrait is recognizable through its dark silhouette, slight smile and muted landscape, but replication is weak. A frontal, oversized head and symmetric torso replace the reference's turned seated pose; angular, separated hands omit its central gesture. Smooth shading maintains coherence while anatomical detail, depth and material rendering remain basic.

Score breakdown

CategoryGemma 4 26B A4BMiMo-V2.6-Pro
Task & likeness0.5/103.5/10
Anatomy & construction2.0/103.5/10
Space & placement1.0/104.0/10
Light & reflections2.0/105.0/10
Purposeful detail1.0/103.0/10
Artistry & character2.0/104.0/10
Materials & effects1.0/104.0/10
Visual integrity4.5/106.0/10

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

Gemma 4 26B A4B

A clean, balanced sunset scene demonstrates the beach, birds and a centered reflection. Animals and play receive only minimal treatment. Coherent layers and controlled gradients support readability, but unresolved aquatic anatomy, sparse details and weak surface modeling keep the drawing basic.

MiMo-V2.6-Pro

A readable sunset beach with clear requested subjects, appealing framing and purposeful accessories. Schematic anatomy, flattened foreground objects, repetitive water highlights and sparse directional shadows limit construction and physical depth. The kite's unresolved anchor also constrains integrity.

Score breakdown

CategoryGemma 4 26B A4BMiMo-V2.6-Pro
Task & likeness3.5/108.5/10
Anatomy & construction2.0/105.0/10
Space & placement3.5/106.0/10
Light & reflections5.0/106.5/10
Purposeful detail1.0/106.5/10
Artistry & character1.5/105.0/10
Materials & effects2.0/106.0/10
Visual integrity6.0/106.0/10

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

Gemma 4 26B A4B

This benchmark has not been assessed yet.

MiMo-V2.6-Pro

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

Same task instructions

Scene composition and interacting subjects.

The judgment

Gemma 4 26B A4B

The animal stack is recognizable, and clean silhouettes support a basic illustration. Steering is not depicted, while the craft's construction and water contact remain unresolved. Sparse anatomical and material detail limit the finish. The sky gradient and glow provide atmospheric lighting, but the subjects lack corresponding modeling.

MiMo-V2.6-Pro

A coherent, cheerful cartoon with recognizable animals, readable steering contact and useful small details. The dog's orientation follows the craft more successfully than a wholly frontal pose would. Simple anatomy, weak raccoon grip and compressed seating contacts still limit physical credibility. Gradients and spray provide polish without resolving complex construction.

Score breakdown

CategoryGemma 4 26B A4BMiMo-V2.6-Pro
Task & likeness2.5/107.0/10
Anatomy & construction2.5/105.0/10
Space & placement4.0/105.5/10
Light & reflections3.5/105.5/10
Purposeful detail2.5/106.0/10
Artistry & character3.0/104.0/10
Materials & effects2.0/105.5/10
Visual integrity7.0/104.5/10

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

Gemma 4 26B A4B

A clean, balanced icon suggests a pelican riding a bicycle. Continuous contours and restrained colors support its finish, but the abbreviated bill, undifferentiated body, unresolved riding contacts and incomplete bicycle mechanism limit likeness and construction. Sparse detail and flat lighting keep the drawing basic despite its clarity.

MiMo-V2.6-Pro

The distinctive bill, continuous silhouette and detailed wheels establish a readable pelican cyclist. Shaped feathers and soft shading add character, but jointless legs, crowded pedal contacts, absent steering contact and loosely directional lighting limit the construction. The comparisons support retaining the baseline category scores.

Score breakdown

CategoryGemma 4 26B A4BMiMo-V2.6-Pro
Task & likeness3.0/106.5/10
Anatomy & construction3.0/105.0/10
Space & placement5.0/106.0/10
Light & reflections3.0/105.5/10
Purposeful detail3.0/106.0/10
Artistry & character2.5/106.0/10
Materials & effects2.5/105.5/10
Visual integrity5.0/106.0/10

Benchmark task

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