STEALTHMARK · HEAD TO HEAD

All comparisons ↗

GPT-6.1 Terra vs Qwen4-Max-Preview

GPT-6.1 Terra leads Qwen4-Max-Preview by 1.6 points on StealthMark, 60.4 to 58.8. Qwen4-Max-Preview leads on 5 of 9 benchmarks and GPT-6.1 Terra on 4, including both games. Qwen4-Max-Preview scores higher on Raccoon, with its largest category advantage in anatomy & construction.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

60.4/100Overall rank 10/58
58.8/100Overall rank 12/58

General Intelligence

58.0/100
54.6/100

Visual Intelligence

64.9/100
66.3/100

Reasoning efficiency

How many reasoning tokens a model needs for the quality it delivers.

Single-step reasoning How much it reasons to understand a task

Multi-step reasoning How much it keeps reasoning as a task goes on

Cost efficiency

How much Performance you get for your money.

  • Qwen4-Max-PreviewNot measured

BENCHMARK BY BENCHMARK

Where each model leads

  • GPT-6.1 Terra
  • Qwen4-Max-Preview
  • Other models
  • Median

DATASHEET

Specs and pricing

  • GPT-6.1 Terra
  • Qwen4-Max-Preview
  • Other models
  • Median
PricePer 1M output tokens, input below
GPT-6.1 Terra: $5$1 inputQwen4-Max-Preview: No list price
Context windowTokens per request, max output below
GPT-6.1 Terra: 1.05M128K max outputQwen4-Max-Preview: Not published
Output speedTokens per second, our measurement
GPT-6.1 Terra: Not measuredQwen4-Max-Preview: 66tokens/s
Developer
OpenAINot published
Released
26 Oct 2026Not published
Origin
United StatesNot published
Input → output
Text, image → textNot published

Full datasheets, every price and sourceGPT-6.1 Terra ↗

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.

GPT-6.1 Terra 62.0/100Rank 10/54

Survived 2 of 3
Foresight: complete playing field
Level 315 ptsTurn 20 / 20

Qwen4-Max-Preview 57.5/100Rank 14/54

Survived 1 of 3
Foresight: complete playing field
Level 310 ptsTurn 15 / 20

Points per level

LevelGPT-6.1 TerraQwen4-Max-Preview
Level 1Second Thoughts
21 ptsSurvived
20 ptsSurvived
Level 2Pressure Pot
9 ptsOut of lives
12 ptsOut of lives
Level 3Hide or Flight
15 ptsSurvived
10 ptsOut of lives

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.

GPT-6.1 Terra 77.7/100Rank 13/55

Cleared 5 of 5
Latch: complete playing field
Level 520.6 ptsTurn 27 / 40

Qwen4-Max-Preview 67.3/100Rank 21/55

Cleared 5 of 5
Latch: complete playing field
Level 520.6 ptsTurn 27 / 40

Points per level

LevelGPT-6.1 TerraQwen4-Max-Preview
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
8.8 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
19.2 ptsCleared
19.2 ptsCleared
Level 4Passing bay
17.8 ptsClearedFinished early · 3 beacons left
17.2 ptsClearedFinished early · 3 beacons left
Level 5Second thoughts
20.6 ptsCleared
20.6 ptsCleared

Newton's Mirror

Same task instructions

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

The judgment

GPT-6.1 Terra

The sphere, airborne black and first reflected silhouettes preserve important geometry within the portrait frame. Paint deformation, contact order and forward transport are supported, with a small crimson endpoint overshoot. Major optical omissions dominate: short finite reflection sequences and smooth bands replace extensive, spatially ordered mirror imagery. Dark gloss and crisp upper emitter shapes provide partial material credit.

Qwen4-Max-Preview

The main placement, compact airborne black and contrasting cyan/crimson interaction states are largely supported. Recognizable first mirror images earn substantial local credit despite modest silhouette and overlap errors. Most of the defining mirror system remains missing, especially nested spherical imagery, outer chains and repeated emitter mapping. Crimson also extends slightly too far down the facing surface.

Score breakdown

CategoryGPT-6.1 TerraQwen4-Max-Preview
State at 600 ms23.0/2524.5/25
Camera and placement11.0/1514.0/15
Reflections33.0/12039.0/120
Materials and scale7.5/106.5/10
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

GPT-6.1 Terra

A balanced serpent emblem with six attached outward heads, delicate scales and softly rounded bodies. Its compact silhouette reads clearly, but central routing does not establish every alternating crossing or crisp inward corner. Repetitive texture, limited facial anatomy and weak contact shadows constrain its organic character.

Qwen4-Max-Preview

A coherent celestial character with readable costume layers, controlled ornament and coordinated luminous accents. Simplified joints, shallow frontal space and limited material modeling constrain construction and drawing complexity. The raised palm's orientation remains only partially demonstrated.

Score breakdown

CategoryGPT-6.1 TerraQwen4-Max-Preview
Task & likeness7.5/108.5/10
Anatomy & construction6.5/107.5/10
Space & placement6.5/107.5/10
Light & reflections6.0/107.0/10
Purposeful detail6.5/108.0/10
Artistry & character6.5/107.5/10
Materials & effects6.0/106.5/10
Visual integrity6.0/107.5/10

Benchmark task

GPT-6.1 Terra

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.

Qwen4-Max-Preview

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

Mona Lisa

Same task instructions

Precise visual recall and portrait reconstruction.

The judgment

GPT-6.1 Terra

A recognizable interpretation with developed facial shading, shaped sleeve folds and purposeful small features. These strengths support modest upward calibration, while the frontal torso, elongated proportions, schematic finger joints and unresolved seated support keep replication and construction uneven.

Qwen4-Max-Preview

A coherent, recognizable interpretation with developed facial shading and purposeful portrait details. The frontal, nearly symmetric body, inflated sleeves and unresolved hand articulation substantially limit replication and construction. Layered scenery supplies basic depth, while uniformly smooth surfaces and schematic folds constrain material character and drawing complexity.

Score breakdown

CategoryGPT-6.1 TerraQwen4-Max-Preview
Task & likeness5.5/104.5/10
Anatomy & construction6.5/105.5/10
Space & placement4.5/105.0/10
Light & reflections6.5/106.5/10
Purposeful detail6.0/106.0/10
Artistry & character6.0/105.5/10
Materials & effects6.0/105.0/10
Visual integrity6.5/105.5/10

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

GPT-6.1 Terra

A coherent sunset illustration with clear prompt fulfillment, controlled framing and varied, purposeful small details. Simplified joints, frontal staging, flattened animal forms and weakly directional shadows limit its anatomical, spatial and physical sophistication.

Qwen4-Max-Preview

A coherent sunset illustration with sweeping palms, recognizable wildlife and varied, readable beach details. Atmospheric layering and controlled contours strengthen its character. Basic animal anatomy, overhead-looking foreground creatures and schematic cast shadows limit construction and physical depth.

Score breakdown

CategoryGPT-6.1 TerraQwen4-Max-Preview
Task & likeness8.5/108.5/10
Anatomy & construction7.5/108.0/10
Space & placement6.5/106.5/10
Light & reflections5.5/107.5/10
Purposeful detail7.5/108.0/10
Artistry & character7.0/108.5/10
Materials & effects6.5/106.5/10
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

GPT-6.1 Terra

This benchmark has not been assessed yet.

Qwen4-Max-Preview

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

GPT-6.1 Terra

A coherent cartoon with expressive animals, readable steering and a clear wake. Fine facial and hull details reward inspection. The main limits are the boatlike craft, simplified joints, weakly braced frontal raccoon and minimal directional lighting or material depth.

Qwen4-Max-Preview

An expressive cartoon with purposeful accessory detail, readable steering and directional spray. The aligned sunset reflection adds physical coherence. Simplified joints and the frontal raccoon's uncertain seated support continue to limit anatomy, perspective and integrity.

Score breakdown

CategoryGPT-6.1 TerraQwen4-Max-Preview
Task & likeness6.5/108.0/10
Anatomy & construction5.5/107.5/10
Space & placement6.0/106.0/10
Light & reflections5.0/106.5/10
Purposeful detail7.0/108.0/10
Artistry & character6.0/106.5/10
Materials & effects6.0/107.0/10
Visual integrity7.0/106.0/10

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

GPT-6.1 Terra

A coherent pelican cyclist with expressive proportions, purposeful feather detail and developed bicycle machinery. Continuous body contours, aligned wheels and readable pedal contacts support the scene. Simplified articulation, shallow modelling and an unresolved steering connection limit construction and placement.

Qwen4-Max-Preview

A detailed coastal illustration with readable seated support, steering and pedal contacts. Continuous anatomy, coherent bicycle construction and purposeful small features support its expressive composition. Simplified limb articulation, modest perspective depth and weakly directional ground shadows limit physical conviction.

Score breakdown

CategoryGPT-6.1 TerraQwen4-Max-Preview
Task & likeness7.0/108.5/10
Anatomy & construction7.0/108.0/10
Space & placement6.0/107.5/10
Light & reflections5.5/106.5/10
Purposeful detail7.0/108.0/10
Artistry & character6.5/107.5/10
Materials & effects5.5/107.0/10
Visual integrity6.0/108.0/10

Benchmark task

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