STEALTHMARK · HEAD TO HEAD

All comparisons ↗

GPT-6.1 Terra Low vs MAI-Thinking-1

GPT-6.1 Terra Low leads MAI-Thinking-1 by 27.2 points on StealthMark, 41.3 to 14.1. It leads on 8 of 9 benchmarks, including both games, and MAI-Thinking-1 on 1. GPT-6.1 Terra Low 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

41.3/100Overall rank 35/55
14.1/100Overall rank 53/55

General Intelligence

34.3/100
7.4/100

Visual Intelligence

53.1/100
24.6/100

BENCHMARK BY BENCHMARK

Where each model leads

  • GPT-6.1 Terra Low
  • MAI-Thinking-1
  • Other models
  • Median

DATASHEET

Specs and pricing

  • GPT-6.1 Terra Low
  • MAI-Thinking-1
  • Other models
  • Median
PricePer 1M output tokens, input below
GPT-6.1 Terra Low: No list priceMAI-Thinking-1: $8$2 input
Context windowTokens per request, max output below
GPT-6.1 Terra Low: Not publishedMAI-Thinking-1: 256K64K max outputEstimated
Output speedTokens per second, our measurement
GPT-6.1 Terra Low: Not measuredMAI-Thinking-1: 93tokens/s
SizeTotal and active parameters
GPT-6.1 Terra Low: Not disclosedMAI-Thinking-1: 1T35B activeEstimated
Developer
Not publishedMicrosoft AI
Released
Not published12 Aug 2026
Origin
Not publishedUnited States
Input → output
Not publishedText → text
Architecture
Not publishedSparse Mixture-of-Experts (MoE)

Full datasheets, every price and sourceMAI-Thinking-1 ↗

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 Low 36.1/100Rank 26/51

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

MAI-Thinking-1 6.4/100Rank 48/51

Survived 0 of 3
Foresight: complete playing field
Level 31 ptsTurn 8 / 20

Points per level

LevelGPT-6.1 Terra LowMAI-Thinking-1
Level 1Second Thoughts
4 ptsOut of lives
3 ptsOut of lives
Level 2Pressure Pot
8 ptsOut of lives
3 ptsOut of lives
Level 3Hide or Flight
9 ptsSurvived
1 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 Low 62.4/100Rank 23/52

Cleared 4 of 5
Latch: complete playing field
Level 520.6 ptsTurn 27 / 40

MAI-Thinking-1 3.6/100Rank 48/52

Cleared 1 of 5
Latch: complete playing field
Level 511.8 ptsTurn 16 / 40

Points per level

LevelGPT-6.1 Terra LowMAI-Thinking-1
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.2 ptsCleared
2 ptsOut of turns
Level 3Relay vault
18.8 ptsCleared
2.2 ptsFinished early
Level 4Passing bay
10.2 ptsFinished early
3 ptsFinished early
Level 5Second thoughts
20.6 ptsCleared
11.8 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

GPT-6.1 Terra Low

Deformed colored paint and a separate airborne black body establish readable interaction history. Cyan has travelled too far, framing differs substantially, and the mirror system supplies only elementary bands and oval copies. Missing recursive geometry, nested spherical imagery and emitter mapping remain the dominant weaknesses.

MAI-Thinking-1

The small paint features and convex shading deserve moderate material credit. The sphere remains undersized and low, with black unusually close to its apex. Crimson and cyan do not establish the required impact histories. Faint reflected echoes supply limited optical evidence, while the defining recursive room, nested sphere and emitter structures remain unestablished.

Score breakdown

CategoryGPT-6.1 Terra LowMAI-Thinking-1
State at 600 ms22.0/253.0/25
Camera and placement4.0/152.5/15
Reflections10.0/1204.0/120
Materials and scale6.0/102.0/10
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

GPT-6.1 Terra Low

Six attached outward-facing heads, delicate scales and soft ivory shading establish an orderly decorative motif. Separate paddle-shaped bodies replace the required interlocking loops and leave no enclosed central hexagon. Surface detail provides interest, but repeated simple forms, schematic faces and limited anatomical modeling constrain the result.

MAI-Thinking-1

A recognizable lantern-and-moth illustration with appealing coloured wings and tidy outer contours. Simple construction, a small focal subject and crowded overlaps limit character and depth. The face, six-leg anatomy, seedling and antenna-driven watering joke remain insufficiently readable.

Score breakdown

CategoryGPT-6.1 Terra LowMAI-Thinking-1
Task & likeness4.0/104.0/10
Anatomy & construction3.5/104.5/10
Space & placement4.5/105.0/10
Light & reflections5.5/104.5/10
Purposeful detail5.5/104.0/10
Artistry & character5.0/105.0/10
Materials & effects5.5/105.0/10
Visual integrity4.0/106.0/10

Benchmark task

GPT-6.1 Terra Low

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.

MAI-Thinking-1

A fluffy moth tends a lantern greenhouse amid a gardening mishap. The scene tests insect anatomy, expressive action, translucent wings and the interaction of light with small objects.

Mona Lisa

Different task instructions

Precise visual recall and portrait reconstruction.

The judgment

GPT-6.1 Terra Low

A recognizable, coherent portrait with purposeful facial detail, warm local volume and layered scenery. The frontal pose, enlarged face, merged hands and shallow clothing construction substantially limit replication and drawing skill. The visible successes support retaining the current assessment.

MAI-Thinking-1

A recognizable Mona Lisa motif emerges from dark hair, a pale face and a landscape band. Replication remains weak: the oversized frontal head, broad smile, unresolved torso and missing crossed-hand anatomy diverge substantially from the reference. Simple fills and sparse strokes provide limited volume, material definition or painterly complexity.

Score breakdown

CategoryGPT-6.1 Terra LowMAI-Thinking-1
Task & likeness5.0/101.0/10
Anatomy & construction4.5/100.5/10
Space & placement5.0/101.0/10
Light & reflections6.0/101.5/10
Purposeful detail5.0/101.0/10
Artistry & character5.5/101.5/10
Materials & effects5.0/100.5/10
Visual integrity6.0/103.0/10

Benchmark task

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

Beach

Different task instructions

Creativity, perspective and visual beauty.

The judgment

GPT-6.1 Terra Low

A coherent sunset scene demonstrates the beach, animals, birds and reflections. Flowing silhouettes, warm color transitions and intact attachments are its strongest properties. Simplified anatomy, the turtle's elevated viewing angle and symbolic surface effects constrain drawing complexity and physical depth.

MAI-Thinking-1

A coherent, cheerful beach scene with balanced placement, clean shapes and controlled sunset colours. Animals, birds and playful accessories are recognizable, but basic dolphin construction, weak grounding, schematic reflections and sparse material detail limit the drawing's accomplishment.

Score breakdown

CategoryGPT-6.1 Terra LowMAI-Thinking-1
Task & likeness8.0/106.0/10
Anatomy & construction5.5/104.0/10
Space & placement5.5/105.0/10
Light & reflections6.5/104.0/10
Purposeful detail6.0/104.5/10
Artistry & character5.0/104.0/10
Materials & effects5.5/103.5/10
Visual integrity7.5/104.5/10

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 Low

This benchmark has not been assessed yet.

MAI-Thinking-1

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

Different task instructions

Scene composition and interacting subjects.

The judgment

GPT-6.1 Terra Low

Recognizable animals, a coherent craft and sweeping wake make an appealing cartoon. Basic limb construction, weakly demonstrated raccoon seating and limited shared perspective constrain the scene. Small identifying details work well, while lighting and materials remain broadly graphic.

MAI-Thinking-1

The recognizable raccoon and clean, shaded forms make a readable cartoon. The dog's steering remains undemonstrated, while ambiguous seating contacts and a minimally constructed craft weaken the central interaction. Controlled gradients and edges deserve credit, but anatomy, purposeful detail and water displacement remain basic.

Score breakdown

CategoryGPT-6.1 Terra LowMAI-Thinking-1
Task & likeness6.5/103.0/10
Anatomy & construction5.0/102.0/10
Space & placement5.5/105.0/10
Light & reflections4.5/103.5/10
Purposeful detail6.0/103.0/10
Artistry & character5.0/102.5/10
Materials & effects5.0/103.5/10
Visual integrity6.0/105.5/10

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

Different task instructions

Subject construction and spatial relationships.

The judgment

GPT-6.1 Terra Low

A coherent coastal illustration with a distinctive pelican, controlled contours and clearly organised bicycle wheels. Visible saddle support and shaped neck and wing contours earn credit beyond basic geometric construction. Rubbery legs, unresolved pedal contacts and absent steering contact limit the riding action. Lighting and materials remain restrained and spatially shallow.

MAI-Thinking-1

A recognizable pelican and bicycle combine clean rounded forms, expressive facial details and effective surface shading. Aligned wheels and soft shadows establish placement, but unresolved pedal engagement, absent steering contact and sparse drivetrain construction weaken the riding action. Limited feather complexity and shallow space constrain an otherwise appealing illustration.

Score breakdown

CategoryGPT-6.1 Terra LowMAI-Thinking-1
Task & likeness7.0/107.0/10
Anatomy & construction5.5/104.5/10
Space & placement6.0/105.5/10
Light & reflections5.5/107.0/10
Purposeful detail6.5/105.0/10
Artistry & character6.0/105.0/10
Materials & effects6.0/104.5/10
Visual integrity6.0/107.0/10

Benchmark task

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