Claude Haiku 5.5 34.4/100Rank 26/49

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Claude Haiku 5.5 leads Inkling-Small by 21.9 points on StealthMark, 49.5 to 27.6. It leads on all 9 benchmarks. Claude Haiku 5.5 scores higher on Newton's Mirror, with its largest category advantage in reflections.
See the difference ↘On every task, result quality and reasoning tokens are each compared with all measured models and weighed equally. Each dot is one model.
BENCHMARK BY BENCHMARK
DATASHEET
Both take about 1M tokens of context.
Full datasheets, every price and sourceClaude Haiku 5.5 ↗Inkling-Small ↗
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.


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.


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


Claude Haiku 5.5
The centered sphere, compact airborne black blob and differentiated cyan/crimson interaction support substantial state and placement credit. The few recognizable sphere and panel images establish limited optical relationships, but most of the required mirror system is missing. Rounded volume and localized paint warrant substantial material credit despite the soft, illustrative finish.
Inkling-Small
The sphere's apparent floor support, separate dark feature and broad paint ordering justify partial state credit. The major weakness is the largely missing mirror system: isolated side images and faint floor echoes do not establish repeated virtual rooms or curved spherical mapping. Downward framing, the oversized frontal panel, unresolved paint transport and satin surface appearance remain distinct limitations.
| Category | Claude Haiku 5.5 | Inkling-Small |
|---|---|---|
| State at 600 ms | 25.0/25 | 14.0/25 |
| Camera and placement | 8.0/15 | 3.0/15 |
| Reflections | 24.5/120 | 8.0/120 |
| Materials and scale | 7.5/10 | 2.5/10 |
| Floor-damage reward | 0.0/10 | 0.0/10 |
A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.
Visual construction and creative interpretation.


Claude Haiku 5.5
A coherent coral squid emblem with a compact mantle, restrained face and clean centered presentation. Its radial silhouette and floating placement work, but sharp arm tips, crowded roots and sparse surface modeling limit softness, construction and finish.
Inkling-Small
The faces and dripping caps communicate a cute mushroom scene, but simple construction and weak spatial relationships limit the result. The defining foot-stamping action is unresolved, the flattering portrait is smaller than its painter, and the requested material contrasts are only partly conveyed.
| Category | Claude Haiku 5.5 | Inkling-Small |
|---|---|---|
| Task & likeness | 6.5/10 | 2.5/10 |
| Anatomy & construction | 4.0/10 | 1.5/10 |
| Space & placement | 6.5/10 | 3.5/10 |
| Light & reflections | 4.0/10 | 3.0/10 |
| Purposeful detail | 3.5/10 | 4.5/10 |
| Artistry & character | 3.5/10 | 3.0/10 |
| Materials & effects | 4.5/10 | 3.5/10 |
| Visual integrity | 7.0/10 | 2.0/10 |
Claude Haiku 5.5
A coral squid with spreading arms tests connected anatomy, balanced composition and soft surface shading.
Inkling-Small
Character scenes test expression, anatomy, materials and coherent visual construction.
Precise visual recall and portrait reconstruction.


Claude Haiku 5.5
A recognizable but basic Mona Lisa reinterpretation. Clean contours and smooth facial lighting provide coherence and volume. Replication remains limited by the frontal pose, elongated neck, schematic expression, unresolved crossed hands and sparse landscape. Lighting is more successful than anatomical construction and purposeful detail.
Inkling-Small
A recognizable but rudimentary Mona Lisa interpretation. Facial shading and subdued colors provide coherence, while the frontal blocklike torso, unresolved wrists, fingerless hands and shallow landscape substantially limit likeness, construction and finish.
| Category | Claude Haiku 5.5 | Inkling-Small |
|---|---|---|
| Task & likeness | 3.0/10 | 2.5/10 |
| Anatomy & construction | 4.0/10 | 2.5/10 |
| Space & placement | 4.0/10 | 3.0/10 |
| Light & reflections | 5.5/10 | 2.5/10 |
| Purposeful detail | 2.5/10 | 2.0/10 |
| Artistry & character | 3.5/10 | 2.5/10 |
| Materials & effects | 2.5/10 | 2.0/10 |
| Visual integrity | 5.5/10 | 3.0/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Claude Haiku 5.5
A cheerful, coherent beach illustration with attractive sunset colors, readable accessories and clean silhouettes. Its sun and sailboat reflections establish useful physical relationships. Simple animal construction, flattened foreground placement, sparse directional shadows and minimally differentiated surfaces limit its drawing refinement.
Inkling-Small
A recognizable sunset beach with a clear focal sun and appealing color transitions. Connected fish silhouettes and layered scenery establish basic coherence. Primitive figures, ambiguous recreation, sparse descriptive detail and weak grounding limit construction and depth. The aligned reflection supplies a useful lighting cue, but shadows and material effects remain underdeveloped.
| Category | Claude Haiku 5.5 | Inkling-Small |
|---|---|---|
| Task & likeness | 8.5/10 | 3.5/10 |
| Anatomy & construction | 6.5/10 | 3.0/10 |
| Space & placement | 7.0/10 | 3.0/10 |
| Light & reflections | 7.0/10 | 3.0/10 |
| Purposeful detail | 7.0/10 | 3.0/10 |
| Artistry & character | 6.0/10 | 3.0/10 |
| Materials & effects | 6.0/10 | 2.5/10 |
| Visual integrity | 8.5/10 | 2.0/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Claude Haiku 5.5
This benchmark has not been assessed yet.
Inkling-Small
This benchmark has not been assessed yet.
A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.
Scene composition and interacting subjects.


Claude Haiku 5.5
A tidy, appealing cartoon with recognizable animals and a pleasing sunset palette. Steering lacks visible controls, while schematic limbs and uncertain raccoon support weaken the requested interaction. Shallow vehicle construction, flat character lighting and modest displacement limit physical coherence. Clean shapes and readable identifying details remain strengths.
Inkling-Small
Recognizable animals, readable accessories and an appealing sunset support a coherent basic cartoon. Rounded construction leaves joints, riding support and steering unresolved. Decorative gradients contribute atmosphere, but directional lighting, distinct materials and convincing water displacement are weakly demonstrated.
| Category | Claude Haiku 5.5 | Inkling-Small |
|---|---|---|
| Task & likeness | 4.0/10 | 4.0/10 |
| Anatomy & construction | 3.5/10 | 3.0/10 |
| Space & placement | 5.5/10 | 4.0/10 |
| Light & reflections | 4.0/10 | 5.0/10 |
| Purposeful detail | 5.5/10 | 5.5/10 |
| Artistry & character | 4.5/10 | 4.0/10 |
| Materials & effects | 5.5/10 | 5.0/10 |
| Visual integrity | 4.5/10 | 5.0/10 |
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.
Subject construction and spatial relationships.


Claude Haiku 5.5
A cheerful, recognizable illustration with clean contours and a balanced warm palette. Aligned wheels and readable frame geometry establish the bicycle, but shoulder construction, feet and steering contact remain imprecise. Sparse drivetrain detail, flat materials and absent grounding shadows limit anatomical and spatial conviction.
Inkling-Small
The pelican is immediately recognizable, and its sweeping neck, shaped bill and orderly spokes provide character. Riding remains only partially realized: legs, pedal engagement, steering and seat support cannot be read confidently. Controlled graphic effects add atmosphere, but simplified construction and weak grounding keep the result basic.
| Category | Claude Haiku 5.5 | Inkling-Small |
|---|---|---|
| Task & likeness | 8.0/10 | 4.0/10 |
| Anatomy & construction | 5.5/10 | 3.0/10 |
| Space & placement | 6.5/10 | 3.0/10 |
| Light & reflections | 5.0/10 | 3.0/10 |
| Purposeful detail | 6.0/10 | 4.5/10 |
| Artistry & character | 5.0/10 | 5.0/10 |
| Materials & effects | 5.0/10 | 4.5/10 |
| Visual integrity | 8.0/10 | 3.0/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.