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

STEALTHMARK · HEAD TO HEAD
All comparisons ↗DeepSeek-V4.1-Flash-1017 leads GPT-5.6 Luna by 21.4 points on StealthMark, 59.2 to 37.8. 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 1.7× faster in our speed test. Both take about 1M tokens of context.
Full datasheets, every price and sourceDeepSeek-V4.1-Flash-1017 ↗GPT-5.6 Luna ↗
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.
GPT-5.6 Luna
The room enclosure has coherent symmetric perspective, with the overhead panel, sphere and black aligned centrally. The sphere and airborne black occupy substantially lower positions than the reference framing, inconsistent with the prescribed camera aim. The diagonal crimson streak does not establish the required surface transport. Faint wall sphere images provide limited mirrored correspondence, but the shallow floor image, missing receding chains, absent nested sphere imagery and sparse emitter mapping leave most reflection structure unsupported.
| Category | DeepSeek-V4.1-Flash-1017 | GPT-5.6 Luna |
|---|---|---|
| State at 600 ms | 23.0/25 | 15.0/25 |
| Camera and placement | 13.5/15 | 4.0/15 |
| Reflections | 34.0/120 | 3.5/120 |
| Materials and scale | 8.5/10 | 6.5/10 |
| 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.


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.
GPT-5.6 Luna
Six pale, outward-facing heads and six rounded lobes make the knot recognizable. The central hexagonal opening remains clear. However, broad gray crossing panels flatten the weave, several inner joins resemble capped strips, and sparse oversized scale marks leave the bodies looking more like decorated ribbons than living snakes.
| Category | DeepSeek-V4.1-Flash-1017 | GPT-5.6 Luna |
|---|---|---|
| Task & likeness | 7.5/10 | 7.5/10 |
| Anatomy & construction | 7.5/10 | 6.0/10 |
| Space & placement | 8.0/10 | 6.5/10 |
| Light & reflections | 7.0/10 | 5.0/10 |
| Purposeful detail | 7.5/10 | 5.5/10 |
| Artistry & character | 8.0/10 | 6.0/10 |
| Materials & effects | 7.5/10 | 5.0/10 |
| Visual integrity | 6.5/10 | 6.0/10 |
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.
GPT-5.6 Luna
A pale serpent woven into an interlocking knot tests connected anatomy, repeated structure and readable overlaps. Organic surface detail must work with the overall geometry.
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.
GPT-5.6 Luna
The central portrait, dark clothing, crossed hands and muted landscape clearly evoke Mona Lisa. Replication is limited by the elongated face, conspicuous eyes and simplified smile. Overlapping fingers have uncertain anatomy, while broad gradients and heavy outlines flatten the portrait. The composition and restrained palette remain coherent.
| Category | DeepSeek-V4.1-Flash-1017 | GPT-5.6 Luna |
|---|---|---|
| Task & likeness | 5.0/10 | 3.5/10 |
| Anatomy & construction | 5.0/10 | 3.5/10 |
| Space & placement | 6.0/10 | 4.0/10 |
| Light & reflections | 6.0/10 | 4.5/10 |
| Purposeful detail | 5.5/10 | 4.0/10 |
| Artistry & character | 5.5/10 | 4.0/10 |
| Materials & effects | 5.5/10 | 3.5/10 |
| Visual integrity | 6.0/10 | 4.5/10 |
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.
GPT-5.6 Luna
The warm sunset, palm silhouette and varied beach activities create an appealing, readable composition. Animals, birds and a broad sun reflection satisfy the brief. Drawing remains elementary: angular airborne sea animals lack splash or convincing motion, the crab's claws are awkwardly constructed, and repeated reflection bands suggest a stepped platform. Clean outlines and pleasant colors exceed the anatomical and spatial sophistication.
| Category | DeepSeek-V4.1-Flash-1017 | GPT-5.6 Luna |
|---|---|---|
| Task & likeness | 7.0/10 | 7.5/10 |
| Anatomy & construction | 5.5/10 | 4.0/10 |
| Space & placement | 5.5/10 | 5.5/10 |
| Light & reflections | 6.0/10 | 4.0/10 |
| Purposeful detail | 6.5/10 | 6.5/10 |
| Artistry & character | 5.0/10 | 3.5/10 |
| Materials & effects | 5.5/10 | 4.0/10 |
| Visual integrity | 4.5/10 | 3.5/10 |
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.
GPT-5.6 Luna
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.
GPT-5.6 Luna
Expressive animals, a striped tail and clean outlines make the scene appealing and readable. The raccoon sits convincingly on the dog's back, but the overlapping steering paws are ambiguous and the control stem stops above the hull. Broad wake shapes suggest motion; the glowing sun lacks a corresponding water reflection.
| Category | DeepSeek-V4.1-Flash-1017 | GPT-5.6 Luna |
|---|---|---|
| Task & likeness | 8.0/10 | 7.0/10 |
| Anatomy & construction | 7.0/10 | 5.0/10 |
| Space & placement | 7.0/10 | 6.5/10 |
| Light & reflections | 6.5/10 | 6.0/10 |
| Purposeful detail | 7.0/10 | 6.5/10 |
| Artistry & character | 7.0/10 | 4.5/10 |
| Materials & effects | 6.5/10 | 5.5/10 |
| Visual integrity | 8.0/10 | 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.


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.
GPT-5.6 Luna
A recognizable pelican cyclist with an expressive profile, balanced composition and controlled outlines. Head, neck and torso connect coherently. The bicycle wheels and frame are convincing, but overlapping feet obscure pedal contact, the drivetrain lacks a clear chain, and the wing's handlebar grip is schematic. Atmospheric color succeeds more strongly than directional lighting or material depth.
| Category | DeepSeek-V4.1-Flash-1017 | GPT-5.6 Luna |
|---|---|---|
| Task & likeness | 8.5/10 | 8.5/10 |
| Anatomy & construction | 7.0/10 | 5.5/10 |
| Space & placement | 7.5/10 | 7.5/10 |
| Light & reflections | 6.5/10 | 6.5/10 |
| Purposeful detail | 7.5/10 | 6.5/10 |
| Artistry & character | 7.0/10 | 5.5/10 |
| Materials & effects | 7.0/10 | 7.0/10 |
| Visual integrity | 7.5/10 | 6.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.