STEALTHMARK · HEAD TO HEAD

All comparisons ↗

GPT-6.1 Terra vs MiniMax M3

GPT-6.1 Terra leads MiniMax M3 by 25.8 points on StealthMark, 60.4 to 34.6. It leads on 7 of 9 benchmarks, including both games, and MiniMax M3 on 2. GPT-6.1 Terra scores higher on Mona Lisa, with its largest category advantage in anatomy & construction.

See the difference ↘
All results ↗
All results ↗

Overall StealthMark

60.4/100Overall rank 9/54
34.6/100Overall rank 41/54

General Intelligence

58.0/100
28.0/100

Visual Intelligence

64.9/100
45.3/100

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

  • MiniMax M3

BENCHMARK BY BENCHMARK

Where each model leads

  • GPT-6.1 Terra
  • MiniMax M3
  • Other models
  • Median

DATASHEET

Specs and pricing

GPT-6.1 Terra scores higher on StealthMark. MiniMax M3 is 4.2× cheaper per output token. Both take about 1.05M tokens of context.

  • GPT-6.1 Terra
  • MiniMax M3
  • Other models
  • Median
PricePer 1M output tokens, input below
GPT-6.1 Terra: $5$1 inputMiniMax M3: $1.204.2× cheaper$0.30 input
Context windowTokens per request, max output below
GPT-6.1 Terra: 1.05MTied128K max outputMiniMax M3: 1MTied512K max output
Output speedTokens per second, our measurement
GPT-6.1 Terra: Not measuredMiniMax M3: 162tokens/s
SizeTotal and active parameters
GPT-6.1 Terra: Not disclosedMiniMax M3: 428B23B active
Developer
OpenAIMiniMax
Released
26 Oct 20261 Jun 2026
Origin
United StatesSingapore
Input → output
Text, image → textText, image, video → text
Architecture
Not publishedMixture-of-Experts with MiniMax Sparse Attention and native multimodal encoder

Full datasheets, every price and sourceGPT-6.1 Terra ↗MiniMax M3 ↗

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 9/50

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

MiniMax M3 22.1/100Rank 40/50

Survived 0 of 3
Foresight: complete playing field
Level 36 ptsTurn 7 / 20

Points per level

LevelGPT-6.1 TerraMiniMax M3
Level 1Second Thoughts
21 ptsSurvived
17 ptsOut of lives
Level 2Pressure Pot
9 ptsOut of lives
3 ptsOut of lives
Level 3Hide or Flight
15 ptsSurvived
6 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 12/51

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

MiniMax M3 31.4/100Rank 37/51

Cleared 2 of 5
Latch: complete playing field
Level 58.8 ptsTurn 11 / 40

Points per level

LevelGPT-6.1 TerraMiniMax M3
Level 1Hold the door
5.2 ptsCleared
5.2 ptsCleared
Level 2Crossfeed
9.8 ptsCleared
9.4 ptsClearedFinished early · 1 beacon left
Level 3Relay vault
19.2 ptsCleared
0.2 ptsFinished early
Level 4Passing bay
17.8 ptsClearedFinished early · 3 beacons left
14.2 ptsFinished early
Level 5Second thoughts
20.6 ptsCleared
8.8 ptsFinished early

Newton's Mirror

Same task instructions

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

The judgment

GPT-6.1 Terra

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.

MiniMax M3

The centered sphere, aligned left wall image, smaller lower-left continuation and partially occluded floor image provide recognizable local mirror coherence. Cyan remains airborne, the main sphere resembles white marble, and missing right-side imagery, recursive optics and panel mappings leave the scene substantially incomplete.

Score breakdown

CategoryGPT-6.1 TerraMiniMax M3
State at 600 ms23.0/257.0/25
Camera and placement11.0/1514.5/15
Reflections33.0/12022.0/120
Materials and scale7.5/105.0/10
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

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.

MiniMax M3

The oversized coral M silhouette dominates clearly, with an expressive charcoal face and appealing miniature body. Limbs connect coherently and the cube reads clearly. The lowered left hand only loosely suggests the requested hip pose. Thin highlights and simple gradients provide limited sculptural volume; the cube's glow and grounding shadow are restrained.

Score breakdown

CategoryGPT-6.1 TerraMiniMax M3
Task & likeness7.5/108.0/10
Anatomy & construction6.5/106.0/10
Space & placement6.5/107.0/10
Light & reflections6.0/106.0/10
Purposeful detail6.5/104.0/10
Artistry & character6.5/104.0/10
Materials & effects6.0/104.0/10
Visual integrity6.0/108.0/10

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.

MiniMax M3

A small robot with an oversized angular head presents a glowing object. The scene tests character proportions, gesture and contrasting materials.

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.

MiniMax M3

The centered portrait, dark hair and muted palette suggest Mona Lisa, but characteristic likeness and pose are poorly reproduced. The broad oval face lacks her subtle smile; rounded shoulders and a lone mittenlike hand leave the crossed-arm construction unresolved. Warm shading supplies some volume, while blurred landscape bands, generic clothing and indistinct features limit the drawing.

Score breakdown

CategoryGPT-6.1 TerraMiniMax M3
Task & likeness5.5/102.5/10
Anatomy & construction6.5/101.5/10
Space & placement4.5/102.5/10
Light & reflections6.5/103.0/10
Purposeful detail6.0/101.5/10
Artistry & character6.0/101.5/10
Materials & effects6.0/102.0/10
Visual integrity6.5/102.0/10

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

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.

MiniMax M3

A cheerful, coherent sunset illustration with framing palms, warm gradients and an aligned sun reflection. Animals and beach toys add character, but their construction remains basic. The sailboat appears suspended above the water horizon, while absent cast shadows weaken foreground contact. Clean geometric shapes provide polish without substantial texture or depth.

Score breakdown

CategoryGPT-6.1 TerraMiniMax M3
Task & likeness8.5/108.0/10
Anatomy & construction7.5/104.5/10
Space & placement6.5/106.0/10
Light & reflections5.5/107.0/10
Purposeful detail7.5/106.0/10
Artistry & character7.0/105.0/10
Materials & effects6.5/105.0/10
Visual integrity7.5/105.5/10

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

This benchmark has not been assessed yet.

MiniMax M3

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.

MiniMax M3

The raccoon sits above the dog's back, and the dog reaches toward the jet ski controls. Expressive faces and a vivid sunset make the scene appealing. Construction is simplified: the dog's paws and steering grip are ambiguous, the hull is shallow, and blurred wake patches give limited water displacement. Sunset glow exceeds the lighting modeled on the riders.

Score breakdown

CategoryGPT-6.1 TerraMiniMax M3
Task & likeness6.5/108.0/10
Anatomy & construction5.5/105.5/10
Space & placement6.0/106.5/10
Light & reflections5.0/106.0/10
Purposeful detail7.0/107.0/10
Artistry & character6.0/106.0/10
Materials & effects6.0/106.0/10
Visual integrity7.0/107.0/10

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.

MiniMax M3

The pelican's long bill, pouch and curved neck read clearly, and the warm sunset gives the composition appeal. Bicycle construction weakens the riding action: feet do not convincingly engage the pedals, crank connections are unclear, and body support is unresolved. Clean silhouettes and orderly spokes provide a competent illustrative finish.

Score breakdown

CategoryGPT-6.1 TerraMiniMax M3
Task & likeness7.0/108.0/10
Anatomy & construction7.0/105.5/10
Space & placement6.0/106.5/10
Light & reflections5.5/106.5/10
Purposeful detail7.0/107.5/10
Artistry & character6.5/106.5/10
Materials & effects5.5/106.0/10
Visual integrity6.0/106.5/10

Benchmark task

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