DeepSeek-V4.1-Flash-1017 52.9/100Rank 15/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗DeepSeek-V4.1-Flash-1017 leads Qwen3.5-9B by 48.7 points on StealthMark, 59.2 to 10.5. It leads on all 9 benchmarks. DeepSeek-V4.1-Flash-1017 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
DeepSeek-V4.1-Flash-1017 scores higher on StealthMark and runs 1.9× faster in our speed test. Qwen3.5-9B is 4.8× cheaper per output token. Both take about 1M tokens of context.
Full datasheets, every price and sourceDeepSeek-V4.1-Flash-1017 ↗Qwen3.5-9B ↗
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 ↗


DeepSeek-V4.1-Flash-1017
Principal sphere and airborne-black placements are supported, and diminishing bilateral chains provide limited optical structure. Missing nested imagery, incomplete outer chains, distorted first images and sparse emitter recurrence remain the dominant weaknesses. Oversized paint bodies and unresolved cyan contact impose separate limitations.
Qwen3.5-9B
Horizontal centering and a separate airborne black blob are visible. Cyan's recent contact and crimson's forward transport are insufficiently demonstrated, while sphere support remains obscured. The enlarged, lowered sphere substantially changes the composition. The wall and floor sphere images, recursive room structure and curved emitter mappings are almost entirely missing.
| Category | DeepSeek-V4.1-Flash-1017 | Qwen3.5-9B |
|---|---|---|
| State at 600 ms | 23.0/25 | 3.0/25 |
| Camera and placement | 13.5/15 | 4.5/15 |
| Reflections | 34.0/120 | 2.0/120 |
| Materials and scale | 8.5/10 | 3.0/10 |
| 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.


DeepSeek-V4.1-Flash-1017
An expressive, intricately drawn storybook scene with a complete flowing silhouette and differentiated glossy materials. The supported main lens and continuous shrimp body make the central interaction readable, but reciprocal eye lines, facial magnification and the smaller lens grip remain ambiguous. Bright granular fringes and crowded accessory lines limit the finish.
Qwen3.5-9B
Glowing teal spheres and a harmonious palette provide visible strengths, but the central character remains seriously unresolved. A large gap separates head and torso, limbs cannot be traced, and scattered garment shapes fail to establish the ornate costume. The foreground mound replaces the tall enclosing arch. Clean primitive edges do not repair these construction failures.
| Category | DeepSeek-V4.1-Flash-1017 | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 7.5/10 | 3.0/10 |
| Anatomy & construction | 7.5/10 | 2.0/10 |
| Space & placement | 8.0/10 | 3.0/10 |
| Light & reflections | 7.0/10 | 3.5/10 |
| Purposeful detail | 7.5/10 | 2.0/10 |
| Artistry & character | 8.0/10 | 2.0/10 |
| Materials & effects | 7.5/10 | 4.0/10 |
| Visual integrity | 6.5/10 | 3.0/10 |
DeepSeek-V4.1-Flash-1017
A whale and a tiny shrimp examine one another through bubble lenses, with an octopus nearby. The scene tests interacting characters, differences in scale and transparent materials.
Qwen3.5-9B
A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.
Precise visual recall and portrait reconstruction.


DeepSeek-V4.1-Flash-1017
A coherent graphic interpretation with controlled contours, modeled facial volume and purposeful portrait details. Replication remains limited by the frontal pose, enlarged face, altered expression and ambiguous crossed hands. Landscape layering provides depth, while schematic fabric, smooth surfaces and tonal bands constrain the finish.
Qwen3.5-9B
A centered dark oval with sparse facial marks forms a simple graphic face, but scarcely replicates the Mona Lisa. The portrait's body, crossed hands, clothing and landscape are missing, while angular facial construction and flat tones lose its likeness, volume and subtle expression.
| Category | DeepSeek-V4.1-Flash-1017 | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 5.0/10 | 0.0/10 |
| Anatomy & construction | 5.0/10 | 0.0/10 |
| Space & placement | 6.0/10 | 0.0/10 |
| Light & reflections | 6.0/10 | 0.0/10 |
| Purposeful detail | 5.5/10 | 0.0/10 |
| Artistry & character | 5.5/10 | 0.5/10 |
| Materials & effects | 5.5/10 | 0.0/10 |
| Visual integrity | 6.0/10 | 0.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


DeepSeek-V4.1-Flash-1017
A coherent, colorful beach illustration with controlled curves, clean layering and varied readable accessories. Castle details and small animal features strengthen its finish. Schematic airborne animals, uncertain board support, shallow architectural depth and decorative reflections limit physical coherence and drawing sophistication.
Qwen3.5-9B
The beach is recognizable, and sweeping shoreline curves provide basic rhythm. Wildlife and playful activity remain poorly resolved, with ambiguous body construction and object contact. The sun glows without corresponding reflections or surface lighting. Fragmented subjects and an unintegrated rectangular panel substantially weaken composition and finish.
| Category | DeepSeek-V4.1-Flash-1017 | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 7.0/10 | 1.5/10 |
| Anatomy & construction | 5.5/10 | 0.5/10 |
| Space & placement | 5.5/10 | 1.5/10 |
| Light & reflections | 6.0/10 | 1.0/10 |
| Purposeful detail | 6.5/10 | 2.5/10 |
| Artistry & character | 5.0/10 | 1.5/10 |
| Materials & effects | 5.5/10 | 0.5/10 |
| Visual integrity | 4.5/10 | 1.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


DeepSeek-V4.1-Flash-1017
This benchmark has not been assessed yet.
Qwen3.5-9B
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.


DeepSeek-V4.1-Flash-1017
An appealing cartoon with recognizable riders, expressive faces and a cohesive twilight palette. Clean shapes support the composition, but ambiguous limb overlaps, weak seat contact and loosely resolved steering limit physical coherence. Lighting and water effects are decorative, with modest material differentiation and drawing complexity.
Qwen3.5-9B
Bright colors, clean individual shapes and basic animal cues make the scene partly recognizable. Back seating, body continuity, steering and jet ski construction remain unresolved. Background gradients and wave rhythm provide some finish, but substantial anatomical, spatial and interaction weaknesses dominate.
| Category | DeepSeek-V4.1-Flash-1017 | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 8.0/10 | 2.5/10 |
| Anatomy & construction | 7.0/10 | 1.0/10 |
| Space & placement | 7.0/10 | 2.0/10 |
| Light & reflections | 6.5/10 | 1.0/10 |
| Purposeful detail | 7.0/10 | 1.5/10 |
| Artistry & character | 7.0/10 | 1.0/10 |
| Materials & effects | 6.5/10 | 1.0/10 |
| Visual integrity | 8.0/10 | 2.5/10 |
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.


DeepSeek-V4.1-Flash-1017
An expressive, controlled illustration with continuous body construction, substantial bicycle detail and effective landscape depth. Unclear foot-to-pedal and wing-to-handlebar contacts limit physical conviction and local readability. Purposeful detail and composition are stronger than directional lighting and material treatment.
Qwen3.5-9B
The oversized bill and orderly spoked wheels make the subject partly recognizable. Clean contours and strong color contrast provide graphic clarity, but unresolved appendages, steering, drivetrain and support dominate the construction. Sparse shading and detail further limit the illustration.
| Category | DeepSeek-V4.1-Flash-1017 | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 8.5/10 | 4.0/10 |
| Anatomy & construction | 7.0/10 | 1.5/10 |
| Space & placement | 7.5/10 | 3.0/10 |
| Light & reflections | 6.5/10 | 1.5/10 |
| Purposeful detail | 7.5/10 | 2.5/10 |
| Artistry & character | 7.0/10 | 1.5/10 |
| Materials & effects | 7.0/10 | 1.5/10 |
| Visual integrity | 7.5/10 | 2.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.