Claude Fable 5.1 34.2/100Rank 37/472 of 3 levels

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Claude Fable 5.1 leads MiniMax M3.1 Flash by 16.1 points on StealthMark, 62.0 to 45.9. It leads on 7 of 9 benchmarks, including Latch, and MiniMax M3.1 Flash on 2, including Foresight. Claude Fable 5.1 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 Fable 5.1 ↗MiniMax M3.1 Flash ↗
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 Fable 5.1
The broad paint sequence, bilateral near-field sphere arrangement, overlaps and diminishing panel repetitions are recognizable; crimson is slightly too low. Small paint scale and basic shading provide material cues, although the steel response remains soft. Inaccurate light projections, missing outer chains and incomplete nested room imagery remain the principal limitations.
MiniMax M3.1 Flash
The sphere placement, separate airborne black blob, recent cyan contact and elongated crimson aftermath support the required gross physical state. The reflection system remains severely incomplete: isolated side images, broad metallic bands and sparse light patches replace extensive mirror repetitions and curved nested imagery.
| Category | Claude Fable 5.1 | MiniMax M3.1 Flash |
|---|---|---|
| State at 600 ms | 24.0/25 | 20.0/25 |
| Camera and placement | 14.0/15 | 10.0/15 |
| Reflections | 48.0/120 | 24.0/120 |
| Materials and scale | 7.5/10 | 8.0/10 |
| 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.


Claude Fable 5.1
The coral palette, friendly face, matte shading and cream arch create a coherent emblem. However, the mantle is elongated rather than compact, and the appendages spread mostly sideways and downward instead of forming an evenly spaced, flower-like starburst. Two thin hanging appendages weaken the thick-arm motif. Clean contours and balanced framing support the simple design.
MiniMax M3.1 Flash
The sculptural M, confident grin and miniature theatrical pose closely fulfill the brief. Controlled gradients and clean shapes give the character volume and appeal. Moderate drawing complexity, an apparently separated shoe and ambiguous grounding limit the finish.
| Category | Claude Fable 5.1 | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 6.5/10 | 7.5/10 |
| Anatomy & construction | 7.0/10 | 6.0/10 |
| Space & placement | 7.5/10 | 7.0/10 |
| Light & reflections | 6.5/10 | 6.0/10 |
| Purposeful detail | 6.0/10 | 5.0/10 |
| Artistry & character | 7.0/10 | 6.0/10 |
| Materials & effects | 6.5/10 | 7.0/10 |
| Visual integrity | 8.0/10 | 6.0/10 |
Claude Fable 5.1
A coral squid with spreading arms tests connected anatomy, balanced composition and soft surface shading.
MiniMax M3.1 Flash
A small robot with an oversized angular head presents a glowing object. The scene tests character proportions, gesture and contrasting materials.
Precise visual recall and portrait reconstruction.


Claude Fable 5.1
The dark clothing, crossed hands and hazy landscape establish the Mona Lisa composition. Replication is limited by the frontal, elongated face, wide eyes and simplified smile. Rounded, parallel fingers and unclear wrist transitions weaken the hands. Warm facial shading gives some volume, but broad garment shapes and scattered crack marks substitute for convincing folds and painterly detail.
MiniMax M3.1 Flash
A coherent decorative portrait combines layered hair, garment contours, linked trim and atmospheric scenery. These provide meaningful drawing complexity, but likeness remains limited by the frontal elongated face and altered clothing. Compressed hands, abrupt facial shading and cluttered local edges leave the portrait uneven.
| Category | Claude Fable 5.1 | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 5.5/10 | 4.0/10 |
| Anatomy & construction | 6.0/10 | 4.5/10 |
| Space & placement | 6.0/10 | 5.5/10 |
| Light & reflections | 6.0/10 | 4.5/10 |
| Purposeful detail | 5.0/10 | 5.5/10 |
| Artistry & character | 5.5/10 | 6.0/10 |
| Materials & effects | 6.0/10 | 5.5/10 |
| Visual integrity | 6.5/10 | 5.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Claude Fable 5.1
The colorful sunset, layered shoreline, animals, kite and beach toys fulfill the lively beach brief. Clean silhouettes and a balanced composition give the illustration character. Construction is simplified: the umbrella resembles a segmented fan, dolphins have weak water interaction, and the sun’s reflection forms a rigid widening wedge. Flat surfaces and sparse contact shadows limit depth.
MiniMax M3.1 Flash
A controlled, detailed beach illustration with expressive animals, coherent depth and accomplished foliage and accessory drawing. Its warm palette and varied contours sustain visual interest. Simplified anatomy and object volumes limit physical conviction, while reflection streaks crossing dry-looking sand and generic shadows weaken the lighting.
| Category | Claude Fable 5.1 | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 8.5/10 | 8.5/10 |
| Anatomy & construction | 7.0/10 | 7.0/10 |
| Space & placement | 7.0/10 | 7.5/10 |
| Light & reflections | 7.0/10 | 6.0/10 |
| Purposeful detail | 7.5/10 | 8.0/10 |
| Artistry & character | 7.5/10 | 6.5/10 |
| Materials & effects | 6.5/10 | 6.5/10 |
| Visual integrity | 7.5/10 | 7.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Claude Fable 5.1
This benchmark has not been assessed yet.
MiniMax M3.1 Flash
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 Fable 5.1
The raccoon rides on the dog's back, and the dog's extended foreleg reaches the jet ski controls. Expressive faces, a clear silhouette and sweeping spray make the action readable. Limb and handlebar overlaps weaken construction; broad shading provides limited volume, and the glowing sun has little corresponding reflection on the water. Clean vector shapes support an appealing but simplified illustration.
MiniMax M3.1 Flash
An expressive, coherent cartoon clearly demonstrates the requested riding and steering relationship. Layered animal shapes, readable vehicle depth and purposeful facial details support its drawing quality. Ambiguous grips, sparse cast shadows and simplified material responses limit physical precision.
| Category | Claude Fable 5.1 | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 8.5/10 | 9.0/10 |
| Anatomy & construction | 6.5/10 | 8.0/10 |
| Space & placement | 7.0/10 | 8.0/10 |
| Light & reflections | 5.5/10 | 6.0/10 |
| Purposeful detail | 7.0/10 | 7.5/10 |
| Artistry & character | 7.0/10 | 7.5/10 |
| Materials & effects | 6.5/10 | 7.0/10 |
| Visual integrity | 7.5/10 | 8.0/10 |
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 Fable 5.1
The pelican reads clearly, with an expressive face, prominent bill and appealing composition. Both legs connect to the body, but the far foot's pedal contact and the wing's steering grip remain unclear. Wheel alignment and background layers are coherent. Clean contours and feather lines give polish, while schematic machinery, limited surface texture and weak directional lighting constrain the finish.
MiniMax M3.1 Flash
A controlled coastal illustration with a clear pelican silhouette, detailed wheels and accomplished feather and bill drawing. Continuous body construction and grounded wheels support the scene. Ambiguous leg, pedal and steering contacts weaken the riding mechanics; approximate directional lighting and simplified materials limit physical conviction.
| Category | Claude Fable 5.1 | MiniMax M3.1 Flash |
|---|---|---|
| Task & likeness | 8.5/10 | 8.5/10 |
| Anatomy & construction | 7.0/10 | 6.5/10 |
| Space & placement | 7.5/10 | 8.0/10 |
| Light & reflections | 6.0/10 | 7.0/10 |
| Purposeful detail | 7.0/10 | 7.5/10 |
| Artistry & character | 7.0/10 | 6.5/10 |
| Materials & effects | 6.0/10 | 7.0/10 |
| Visual integrity | 8.0/10 | 6.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.