STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Fledge Alpha vs Gemini 4 Argon

Gemini 4 Argon leads Fledge Alpha by 31.6 points on StealthMark, 67.4 to 35.8. It leads on all 7 benchmarks with results for both. Gemini 4 Argon scores higher on Newton's Mirror, with its largest category advantage in reflections.

See the difference ↘
Model guide ↗
All results ↗

Overall StealthMark

35.8/100Overall rank 38/53
67.4/100Overall rank 5/53

General Intelligence

27.1/100
63.6/100

Visual Intelligence

45.2/100
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

  • Fledge AlphaMulti-step reasoning not measured

Open or local

BENCHMARK BY BENCHMARK

Where each model leads

  • Fledge Alpha
  • Gemini 4 Argon
  • Other models
  • Median

DATASHEET

Specs and pricing

Gemini 4 Argon scores higher on StealthMark and runs 2.3× faster in our speed test.

  • Fledge Alpha
  • Gemini 4 Argon
  • Other models
  • Median
PricePer 1M output tokens, input below
Fledge Alpha: No list priceGemini 4 Argon: $10$2 input
Context windowTokens per request, max output below
Fledge Alpha: Not publishedGemini 4 Argon: 1M1M max output
Output speedTokens per second, our measurement
Fledge Alpha: 63tokens/sGemini 4 Argon: 1442.3× fastertokens/s
Developer
Not publishedGoogle
Released
Not published13 Oct 2026
Origin
Not publishedUnited States
Input → output
Not publishedText, image, audio, video, PDF → text
Architecture
Not publishedSparse mixture-of-experts (MoE) transformer with native multimodal inputs

Full datasheets, every price and sourceGemini 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.

Gemini 4 Argon 48.6/100Rank 19/47

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

Points per level

LevelFledge AlphaGemini 4 Argon
Level 1Second Thoughts
No run
26 ptsSurvived
Level 2Pressure Pot
No run
9 ptsOut of lives
Level 3Hide or Flight
No run
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.

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

LevelFledge AlphaGemini 4 Argon
Level 1Hold the door
No run
5.2 ptsCleared
Level 2Crossfeed
No run
9.8 ptsCleared
Level 3Relay vault
No run
19.2 ptsCleared
Level 4Passing bay
No run
18.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
No run
20.6 ptsCleared

Newton's Mirror

Same task instructions

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

The judgment

Fledge Alpha

The candidate communicates a round metallic sphere, three paint colors and a separate airborne black blob. Its hovering support relationship, displaced framing and unresolved paint interaction limit physical credit. Sparse planar light ghosts and a soft sphere highlight provide little evidence for the required wall/floor repetitions and curved nested mirror imagery.

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

CategoryFledge AlphaGemini 4 Argon
State at 600 ms9.0/2524.5/25
Camera and placement5.0/1514.5/15
Reflections7.5/12050.5/120
Materials and scale3.5/108.5/10
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

Fledge Alpha

A coherent, appealing mascot with expressive eyes, a cheerful beak and a readable swept-back silhouette. Its larger forward foot and trailing feathers suggest a running stride, but the upright body, stiff legs and minimally articulated feet limit convincing motion. Clean flat shapes suit the brief, while uneven feather junctions and incomplete cream accents reduce polish.

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

CategoryFledge AlphaGemini 4 Argon
Task & likeness7.5/107.0/10
Anatomy & construction6.5/106.5/10
Space & placement7.0/107.5/10
Light & reflections5.5/107.5/10
Purposeful detail6.5/108.0/10
Artistry & character4.0/107.0/10
Materials & effects6.0/107.0/10
Visual integrity6.5/107.5/10

Benchmark task

Fledge Alpha

An eager young seabird running toward the viewer tests expressive anatomy, balance and a convincing forward-moving pose.

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

Fledge Alpha

A recognizable but basic Mona Lisa reinterpretation with a coherent silhouette and subdued palette. Curtain-like hair obscures much of the face, while elongated facial construction and oversized, minimally articulated hands substantially weaken replication. Soft shading supplies modest volume, but anatomy, landscape depth and purposeful detail remain underdeveloped.

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

CategoryFledge AlphaGemini 4 Argon
Task & likeness3.0/106.5/10
Anatomy & construction3.0/106.5/10
Space & placement2.5/106.5/10
Light & reflections2.5/107.0/10
Purposeful detail3.0/106.0/10
Artistry & character3.0/106.5/10
Materials & effects2.5/107.0/10
Visual integrity2.5/107.0/10

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

Beach

Different task instructions

Creativity, perspective and visual beauty.

The judgment

Fledge Alpha

A cheerful, recognizable sunset beach with a cohesive warm palette and clear accessories. Simple construction, uncertain palm support, an ambiguous upper boundary and schematic reflections limit depth and finish. The scene communicates its subject successfully but lacks the developed forms, lighting and detail of exceptional illustration.

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

CategoryFledge AlphaGemini 4 Argon
Task & likeness7.5/109.0/10
Anatomy & construction4.0/107.5/10
Space & placement5.5/108.5/10
Light & reflections5.0/108.5/10
Purposeful detail3.0/109.0/10
Artistry & character3.0/108.0/10
Materials & effects2.5/108.0/10
Visual integrity4.0/108.0/10

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

Fledge Alpha

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

Same task instructions

Scene composition and interacting subjects.

The judgment

Fledge Alpha

An appealing sunset illustration with recognizable characters and a clear riding action. Color, expression and silhouette are stronger than anatomical construction: overlapping paws obscure support, the dog's steering limb is simplified, and the vehicle controls lack definition. The wake conveys movement, while lighting and water reflections remain decorative.

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

CategoryFledge AlphaGemini 4 Argon
Task & likeness8.5/108.5/10
Anatomy & construction5.5/108.0/10
Space & placement7.5/107.5/10
Light & reflections6.5/107.5/10
Purposeful detail7.0/108.5/10
Artistry & character5.5/108.5/10
Materials & effects7.0/108.0/10
Visual integrity4.5/108.0/10

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

Fledge Alpha

A clear, cheerful illustration with a recognizable pelican, coherent bicycle silhouette and tidy composition. Simplified leg articulation, steering contact, mechanical detail and lighting keep it at a competent illustrative level.

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

CategoryFledge AlphaGemini 4 Argon
Task & likeness8.0/109.0/10
Anatomy & construction6.0/108.5/10
Space & placement6.5/108.0/10
Light & reflections4.5/108.0/10
Purposeful detail5.5/108.5/10
Artistry & character5.0/108.5/10
Materials & effects5.5/108.5/10
Visual integrity6.5/108.5/10

Benchmark task

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