STEALTHMARK · HEAD TO HEAD

All comparisons ↗

Kimi K3.1 Pro vs Qwen3.6-27B

Kimi K3.1 Pro leads Qwen3.6-27B by 24.3 points on StealthMark, 56.7 to 32.4. It leads on all 9 benchmarks. Kimi K3.1 Pro scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

56.7/100Overall rank 11/53
32.4/100Overall rank 41/53

General Intelligence

53.9/100
25.6/100

Visual Intelligence

62.0/100
43.9/100

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

Open or local

Local modelOpen model · Apache-2.0

BENCHMARK BY BENCHMARK

Where each model leads

  • Kimi K3.1 Pro
  • Qwen3.6-27B
  • Other models
  • Median

DATASHEET

Specs and pricing

Kimi K3.1 Pro scores higher on StealthMark and runs 22% faster in our speed test. Qwen3.6-27B is 2.8× cheaper per output token. Both take about 1M tokens of context.

  • Kimi K3.1 Pro
  • Qwen3.6-27B
  • Other models
  • Median
PricePer 1M output tokens, input below
Kimi K3.1 Pro: $10$2 inputQwen3.6-27B: $3.602.8× cheaper$0.60 input
Context windowTokens per request, max output below
Kimi K3.1 Pro: 1MTied1M max outputQwen3.6-27B: 1.01MTied64K max output
Output speedTokens per second, our measurement
Kimi K3.1 Pro: 11722% fastertokens/sQwen3.6-27B: 96tokens/s
SizeTotal and active parameters
Kimi K3.1 Pro: 2.8T104B activeEstimatedQwen3.6-27B: 27BAll active
Developer
Moonshot AIQwen / Alibaba
Released
23 Oct 202622 Apr 2026
Origin
ChinaBoth
Input → output
Text, image, video → textBoth
Architecture
Post-trained version of Kimi K3, a Mixture-of-Experts modelDense causal language model with vision encoder; hybrid Gated DeltaNet and gated attention; MTP-trained

Full datasheets, every price and sourceKimi K3.1 Pro ↗Qwen3.6-27B ↗

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.

Kimi K3.1 Pro 61.1/100Rank 10/47

Survived 1 of 3
Foresight: complete playing field
Level 315 ptsTurn 20 / 20

Qwen3.6-27B 37.8/100Rank 23/47

Survived 1 of 3
Foresight: complete playing field
Level 39 ptsTurn 20 / 20

Points per level

LevelKimi K3.1 ProQwen3.6-27B
Level 1Second Thoughts
15 ptsOut of lives
9 ptsOut of lives
Level 2Pressure Pot
12 ptsOut of lives
6 ptsOut of lives
Level 3Hide or Flight
15 ptsSurvived
9 ptsSurvived

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.

Kimi K3.1 Pro 81.8/100Rank 8/48

Cleared 5 of 5
Latch: complete playing field
Level 519.8 ptsTurn 31 / 40

Qwen3.6-27B 28.5/100Rank 35/48

Cleared 3 of 5
Latch: complete playing field
Level 511 ptsTurn 25 / 40

Points per level

LevelKimi K3.1 ProQwen3.6-27B
Level 1Hold the door
5.2 ptsCleared
4.8 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
8.8 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
19.2 ptsCleared
16.4 ptsClearedFinished early · 3 beacons left
Level 4Passing bay
18.2 ptsClearedFinished early · 3 beacons left
13.4 ptsFinished early
Level 5Second thoughts
19.8 ptsCleared
11 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

Kimi K3.1 Pro

The settled sphere, separate airborne black paint and crimson-before-cyan interaction are supported, with a modest crimson travel overshoot. A shared downward framing displacement remains after accounting for the square canvas. The principal limitation is the reflection system: sparse sphere copies and generic curved bands omit most of the ordered mirror-room structure. Materials receive a small upward revision because bounded bright images and dark bands visibly establish some polish, while soft shading and bulky paint remain separate weaknesses.

Qwen3.6-27B

The artwork depicts a shaded sphere, distinct paint colors and a separate airborne black blob. Crimson's apex overlap does not establish its earlier interaction and transport, while cyan's recent contact remains unsupported. Horizontal centering supplies limited camera agreement, but the sphere, black blob and prominent panel have substantial placement or projection departures. A few planar echoes provide reflection evidence; isolated patches and gradients replace most of the required mirror structure.

Score breakdown

CategoryKimi K3.1 ProQwen3.6-27B
State at 600 ms23.5/255.0/25
Camera and placement10.5/155.0/15
Reflections26.0/1208.0/120
Materials and scale7.0/104.0/10
Floor-damage reward0.0/100.0/10

Benchmark task

A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.

Selfie

Different task instructions

Visual construction and creative interpretation.

The judgment

Kimi K3.1 Pro

The transformed reflection, attentive pose and constellation anatomy clearly communicate introspection. Purposeful fine details enrich a coherent composition. Tubular limbs, crowded lower-body overlaps, shallow depth and limited cast lighting keep the overall execution within the competent range.

Qwen3.6-27B

An appealing decorative illustration with coordinated ornament, flowing panels and three glowing orbital lights. The arm arrangement reverses the requested sides. Uncertain neck continuity, concealed leg articulation, simplified paws, crowded chest jewelry and shallow surface modeling limit pose clarity and finish.

Score breakdown

CategoryKimi K3.1 ProQwen3.6-27B
Task & likeness8.0/106.5/10
Anatomy & construction5.5/105.0/10
Space & placement6.5/106.5/10
Light & reflections6.5/105.5/10
Purposeful detail7.5/106.0/10
Artistry & character7.0/105.0/10
Materials & effects7.0/105.0/10
Visual integrity7.0/107.0/10

Benchmark task

Kimi K3.1 Pro

An imagined creature encounters its reflection. The scene tests original character design, visual self-interpretation and the relationship between a subject and its reflected image.

Qwen3.6-27B

A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

Kimi K3.1 Pro

A coherent, recognizable interpretation with controlled color and readable landscape layers. Replication is limited by the frontal seated construction, elongated facial proportions and oversized, weakly articulated hands. Smooth shading supplies some volume but little of the reference's subtle expression, fabric structure or atmospheric transitions.

Qwen3.6-27B

The portrait loosely evokes Mona Lisa through its palette and silhouette. Readable pupils, brows and lips provide limited detail, and the torso remains continuous. The frontal elongated face, unresolved chest-level limb forms, shallow landscape and pervasive blur substantially weaken likeness, anatomy and finish.

Score breakdown

CategoryKimi K3.1 ProQwen3.6-27B
Task & likeness5.0/102.5/10
Anatomy & construction5.0/103.0/10
Space & placement5.5/104.0/10
Light & reflections6.0/104.0/10
Purposeful detail5.5/102.5/10
Artistry & character6.0/102.5/10
Materials & effects5.0/103.0/10
Visual integrity6.5/104.0/10

Benchmark task

An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.

Beach

Same task instructions

Creativity, perspective and visual beauty.

The judgment

Kimi K3.1 Pro

A coherent, playful beach illustration with readable animals, an organized composition and an aligned sunset reflection. Connected silhouettes, sand texture and atmospheric effects demonstrate controlled execution. Simplified joints, flattened foreground viewpoints and inconsistent shadows limit anatomical and spatial credibility.

Qwen3.6-27B

A recognizable sunset beach with balanced palms, clean shapes and effective warm–cool contrast. Small animals and play equipment address the brief, but rudimentary anatomy, uncertain water contacts, sparse reflections and flat materials keep the drawing basic or uneven.

Score breakdown

CategoryKimi K3.1 ProQwen3.6-27B
Task & likeness8.5/107.5/10
Anatomy & construction5.5/105.0/10
Space & placement5.5/105.5/10
Light & reflections6.5/105.5/10
Purposeful detail6.5/104.5/10
Artistry & character5.5/105.5/10
Materials & effects6.5/105.5/10
Visual integrity7.5/107.0/10

Benchmark task

A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.

Ground Truth

Same task instructions

Physical reasoning, light and visual reconstruction.

The judgment

Kimi K3.1 Pro

This benchmark has not been assessed yet.

Qwen3.6-27B

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 instructions

Scene composition and interacting subjects.

The judgment

Kimi K3.1 Pro

The additional comparisons support retaining the assessment. Readable steering, shaped animal contours and purposeful details coexist with simplified joints, a frontal passenger whose seated weight is weakly conveyed, and limited physical lighting. The angled craft establishes more depth than the riding pose resolves.

Qwen3.6-27B

A readable cartoon with balanced colors, clean shapes and a clearly supported raccoon. Continuous body construction and modest shading deserve credit. Rudimentary limbs, unresolved steering connections, stiff gestures and schematic water effects limit physical credibility and finish.

Score breakdown

CategoryKimi K3.1 ProQwen3.6-27B
Task & likeness7.0/104.5/10
Anatomy & construction5.5/103.5/10
Space & placement6.0/106.0/10
Light & reflections5.5/105.5/10
Purposeful detail7.0/105.5/10
Artistry & character6.0/104.0/10
Materials & effects6.0/105.5/10
Visual integrity7.0/102.5/10

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

Same task instructions

Subject construction and spatial relationships.

The judgment

Kimi K3.1 Pro

A characterful coastal illustration with controlled contours and varied feather, accessory and bicycle detail. Layered scenery and subtle shading enrich the presentation. Soft leg articulation, unresolved riding contacts, shallow depth and generalized lighting limit physical precision.

Qwen3.6-27B

A lively, coherent illustration with recognizable pelican features, purposeful accessories and useful surface variation. Ambiguous neck layering, uncertain pedal engagement and an unresolved drivetrain limit construction. Aligned wheels and layered scenery establish placement, while inconsistent shadow direction and crowded overlaps constrain finish.

Score breakdown

CategoryKimi K3.1 ProQwen3.6-27B
Task & likeness8.5/107.5/10
Anatomy & construction7.5/104.0/10
Space & placement6.5/106.5/10
Light & reflections6.5/105.0/10
Purposeful detail7.5/106.5/10
Artistry & character7.5/105.5/10
Materials & effects6.5/106.5/10
Visual integrity7.5/106.5/10

Benchmark task

A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.