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 ↘Overall StealthMark
General Intelligence
Visual Intelligence
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
BENCHMARK BY BENCHMARK
Where each model leads
- Fledge Alpha
- Gemini 4 Argon
- Other models
- Median
Games
SVG
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
- 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 ↗
Foresight
Play Foresight yourselfAnticipating 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

Points per level
Latch
Play Latch yourselfCooperative 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.
Fledge AlphaNo run
Gemini 4 Argon 82.6/100Rank 6/48

Points per level
Newton's Mirror
Same task instructionsPhysics, perspective and recursive reflections, tested together. Explore the test ↗
Fledge Alpha 16.4/100 Rank 42/53

Gemini 4 Argon 58.0/100 Rank 3/53

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
| Category | Fledge Alpha | Gemini 4 Argon |
|---|---|---|
| State at 600 ms | 9.0/25 | 24.5/25 |
| Camera and placement | 5.0/15 | 14.5/15 |
| Reflections | 7.5/120 | 50.5/120 |
| Materials and scale | 3.5/10 | 8.5/10 |
| Floor-damage reward | 0.0/10 | 0.0/10 |
Benchmark task
A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.
Selfie
Different task instructionsVisual construction and creative interpretation.
Fledge Alpha 61.1/100 Rank 30/53

Gemini 4 Argon 71.6/100 Rank 16/53

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
| Category | Fledge Alpha | Gemini 4 Argon |
|---|---|---|
| Task & likeness | 7.5/10 | 7.0/10 |
| Anatomy & construction | 6.5/10 | 6.5/10 |
| Space & placement | 7.0/10 | 7.5/10 |
| Light & reflections | 5.5/10 | 7.5/10 |
| Purposeful detail | 6.5/10 | 8.0/10 |
| Artistry & character | 4.0/10 | 7.0/10 |
| Materials & effects | 6.0/10 | 7.0/10 |
| Visual integrity | 6.5/10 | 7.5/10 |
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 instructionsPrecise visual recall and portrait reconstruction.
Fledge Alpha 28.3/100 Rank 35/53

Gemini 4 Argon 65.7/100 Rank 2/53

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
| Category | Fledge Alpha | Gemini 4 Argon |
|---|---|---|
| Task & likeness | 3.0/10 | 6.5/10 |
| Anatomy & construction | 3.0/10 | 6.5/10 |
| Space & placement | 2.5/10 | 6.5/10 |
| Light & reflections | 2.5/10 | 7.0/10 |
| Purposeful detail | 3.0/10 | 6.0/10 |
| Artistry & character | 3.0/10 | 6.5/10 |
| Materials & effects | 2.5/10 | 7.0/10 |
| Visual integrity | 2.5/10 | 7.0/10 |
Benchmark task
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Beach
Different task instructionsCreativity, perspective and visual beauty.
Fledge Alpha 43.4/100 Rank 47/53

Gemini 4 Argon 82.5/100 Rank 2/53

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
| Category | Fledge Alpha | Gemini 4 Argon |
|---|---|---|
| Task & likeness | 7.5/10 | 9.0/10 |
| Anatomy & construction | 4.0/10 | 7.5/10 |
| Space & placement | 5.5/10 | 8.5/10 |
| Light & reflections | 5.0/10 | 8.5/10 |
| Purposeful detail | 3.0/10 | 9.0/10 |
| Artistry & character | 3.0/10 | 8.0/10 |
| Materials & effects | 2.5/10 | 8.0/10 |
| Visual integrity | 4.0/10 | 8.0/10 |
Benchmark task
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Ground Truth
Same task instructionsPhysical reasoning, light and visual reconstruction.
Fledge Alpha 36.8/100 Rank 33/53

Gemini 4 Argon 68.4/100 Rank 4/53

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 instructionsScene composition and interacting subjects.
Fledge Alpha 63.4/100 Rank 20/53

Gemini 4 Argon 81.3/100 Rank 1/53

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
| Category | Fledge Alpha | Gemini 4 Argon |
|---|---|---|
| Task & likeness | 8.5/10 | 8.5/10 |
| Anatomy & construction | 5.5/10 | 8.0/10 |
| Space & placement | 7.5/10 | 7.5/10 |
| Light & reflections | 6.5/10 | 7.5/10 |
| Purposeful detail | 7.0/10 | 8.5/10 |
| Artistry & character | 5.5/10 | 8.5/10 |
| Materials & effects | 7.0/10 | 8.0/10 |
| Visual integrity | 4.5/10 | 8.0/10 |
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 instructionsSubject construction and spatial relationships.
Fledge Alpha 60.5/100 Rank 34/53

Gemini 4 Argon 84.5/100 Rank 1/53

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
| Category | Fledge Alpha | Gemini 4 Argon |
|---|---|---|
| Task & likeness | 8.0/10 | 9.0/10 |
| Anatomy & construction | 6.0/10 | 8.5/10 |
| Space & placement | 6.5/10 | 8.0/10 |
| Light & reflections | 4.5/10 | 8.0/10 |
| Purposeful detail | 5.5/10 | 8.5/10 |
| Artistry & character | 5.0/10 | 8.5/10 |
| Materials & effects | 5.5/10 | 8.5/10 |
| Visual integrity | 6.5/10 | 8.5/10 |
Benchmark task
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.