GPT-5.6 Terra scored 145 on our AI IQ test.
40 of 40 items correct (100% difficulty-weighted), run of 2026-11-03 at temperature 0. Every item, choice, and response excerpt is below.
Linear map of weighted accuracy (0% → 70, 100% → 145). Not a human-normed IQ score.
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All 40 items
Green = correct answer. Red = this model’s pick when it was wrong.
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 solid circle; (1,2) 2 solid circles; (1,3) 3 solid circles Row 2: (2,1) 1 solid square; (2,2) 2 solid squares; (2,3) 3 solid squares Row 3: (3,1) 1 solid triangle; (3,2) 2 solid triangles; (3,3) ?
Why: Each row adds one symbol from left to right, and the shape is constant within a row (row 3 = triangles), so (3,3) holds 3 solid triangles.
Model response excerpt
Each row keeps the same shape, while the number of shapes increases from 1 to 3 across columns. The third row therefore needs 3 solid triangles. Answer: A
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 outline circle; (1,2) 1 outline square; (1,3) 1 outline triangle Row 2: (2,1) 2 outline circles; (2,2) 2 outline squares; (2,3) 2 outline triangles Row 3: (3,1) 3 outline circles; (3,2) 3 outline squares; (3,3) ?
Why: Shape is determined by the column (column 3 = triangles) and the count grows by one each row, so (3,3) holds 3 outline triangles.
Model response excerpt
Rows determine the quantity (1, 2, 3), while columns determine the outlined shape (circle, square, triangle). The missing cell must contain 3 outline triangles. Answer: D
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 solid diamond; (1,2) 2 outline diamonds; (1,3) 3 solid diamonds Row 2: (2,1) 2 solid diamonds; (2,2) 3 outline diamonds; (2,3) 4 solid diamonds Row 3: (3,1) 3 solid diamonds; (3,2) 4 outline diamonds; (3,3) ?
Why: Two rules combine: the count increases by one across each row, and the fill alternates solid, outline, solid by column, so (3,3) holds 5 solid diamonds.
Model response excerpt
Counts increase by 1 moving right or down. The middle column is outline; the final column is solid. Therefore the missing cell contains 5 solid diamonds. Answer: A
You are given a 3x3 grid; each cell contains a single shape described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 solid triangle pointing up; (1,2) 1 solid triangle pointing right; (1,3) 1 solid triangle pointing down Row 2: (2,1) 1 solid triangle pointing up; (2,2) 1 solid triangle pointing right; (2,3) 1 solid triangle pointing down Row 3: (3,1) 1 solid triangle pointing up; (3,2) 1 solid triangle pointing right; (3,3) ?
Why: The triangle rotates 90 degrees clockwise from column to column (up, right, down), and every row repeats that cycle, so (3,3) is a triangle pointing down.
Model response excerpt
Each row repeats the sequence: up, right, down. Therefore the missing cell is 1 solid triangle pointing down. Answer: C
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 2 solid circles; (1,2) 3 solid circles; (1,3) 5 solid circles Row 2: (2,1) 1 solid square; (2,2) 4 solid squares; (2,3) 5 solid squares Row 3: (3,1) 2 solid triangles; (3,2) 2 solid triangles; (3,3) ?
Why: In each row the count in the third cell is the sum of the first two (2 + 2 = 4), with the row's shape kept, so (3,3) holds 4 solid triangles.
Model response excerpt
In each row, the third cell contains the total number of shapes in the first two cells: 2 + 3 = 5, and 1 + 4 = 5. Thus 2 + 2 = 4 solid triangles. Answer: C
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 2 solid diamonds; (1,2) 2 solid diamonds; (1,3) 2 outline diamonds Row 2: (2,1) 2 outline diamonds; (2,2) 2 solid diamonds; (2,3) 2 solid diamonds Row 3: (3,1) 2 solid diamonds; (3,2) 2 outline diamonds; (3,3) ?
Why: Within each row the third cell's fill is solid exactly when the first two cells' fills differ (XOR); solid and outline differ, so (3,3) holds 2 solid diamonds.
Model response excerpt
Each row contains two groups of solid diamonds and one group of outline diamonds. The outline group shifts positions: column 3, then column 1, then column 2. Therefore the final cell must contain solid diamonds. Answer: D
You are given a 3x3 grid; each cell contains two groups of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 solid circle and 3 solid squares; (1,2) 2 solid circles and 2 solid squares; (1,3) 3 solid circles and 1 solid square Row 2: (2,1) 1 outline circle and 3 outline squares; (2,2) 2 outline circles and 2 outline squares; (2,3) 3 outline circles and 1 outline square Row 3: (3,1) 1 solid circle and 3 solid squares; (3,2) 2 solid circles and 2 solid squares; (3,3) ?
Why: Across every row circles gain one while squares lose one; fill is constant within a row and row 3 is solid, so (3,3) holds 3 solid circles and 1 solid square.
Model response excerpt
Across each row, circles increase from 1 to 3 while squares decrease from 3 to 1. Row 3 uses solid shapes, so the missing cell is 3 solid circles and 1 solid square. Answer: B
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 2 solid circles; (1,2) 3 solid circles; (1,3) 4 solid circles Row 2: (2,1) 3 solid squares; (2,2) 4 solid squares; (2,3) 5 solid squares Row 3: (3,1) 4 solid triangles; (3,2) 5 solid triangles; (3,3) ?
Why: Each cell's count equals its row index plus its column index, so (3,3) holds 6; the shape is fixed per row (row 3 = triangles).
Model response excerpt
The shape is determined by the row, and the number increases by one across each column. The missing cell contains 6 solid triangles. Answer: B
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 solid circle; (1,2) 2 solid squares; (1,3) 3 solid triangles Row 2: (2,1) 1 solid square; (2,2) 2 solid triangles; (2,3) 3 solid circles Row 3: (3,1) 1 solid triangle; (3,2) 2 solid circles; (3,3) ?
Why: Each shape appears exactly once per row and once per column (Latin square), and the count equals the column index, so (3,3) holds 3 solid squares.
Model response excerpt
Each column sets the quantity: 1, 2, then 3. Shapes cycle circle → square → triangle across rows, so the missing cell is 3 solid squares. Answer: D
You are given a 3x3 grid; each cell contains a group of shapes described in words. Find the rule and decide what belongs in the final empty cell (3,3). Row 1: (1,1) 1 solid diamond; (1,2) 2 outline diamonds; (1,3) 3 solid diamonds Row 2: (2,1) 2 outline diamonds; (2,2) 3 solid diamonds; (2,3) 4 outline diamonds Row 3: (3,1) 3 solid diamonds; (3,2) 4 outline diamonds; (3,3) ?
Why: The count equals row + column - 1 (giving 5 in cell (3,3)), and the fill is solid whenever row + column is even; (3,3) is even, so it holds 5 solid diamonds.
Model response excerpt
The number of diamonds increases by 1 moving right or down. The fill alternates solid/outline in a checkerboard pattern. Therefore (3,3) has 5 solid diamonds. Answer: C
All programmers are engineers. All engineers are problem-solvers. Which of the following must be true?
- AAll problem-solvers are engineers
- BAll programmers are problem-solversmodel
- CAll problem-solvers are programmers
- DSome engineers are not problem-solvers
Why: The premises chain by transitivity: programmers are contained in engineers, who are contained in problem-solvers. The converse claims are not entailed.
Model response excerpt
All programmers are engineers, and all engineers are problem-solvers. Therefore, all programmers are problem-solvers. Answer: B
Alice is taller than Bob. Carol is shorter than Bob. Who is the tallest of the three?
- ACarol
- BBob
- CCannot be determined
- DAlicemodel
Why: Alice > Bob > Carol, so Alice is the tallest.
Model response excerpt
Alice is taller than Bob, and Bob is taller than Carol, so Alice is the tallest. Answer: D
If it rains, the outdoor concert is cancelled. The concert was not cancelled. Which of the following follows?
- AIt rained
- BThe concert was moved indoors
- CIt did not rainmodel
- DCannot be determined
Why: By modus tollens, if rain always leads to cancellation, then no cancellation implies no rain.
Model response excerpt
Since rain would imply cancellation, and the concert was not cancelled, it did not rain. Answer: C
On an island, knights always tell the truth and knaves always lie. Person A says: "B is a knave." Person B says: "A and I are the same type." What are A and B?
- ABoth knights
- BA is a knight and B is a knavemodel
- CA is a knave and B is a knight
- DBoth knaves
Why: If A were a knave, his claim would make B a knight, but B's 'same type' statement would then be a knight telling a falsehood - contradiction. So A is a knight, B is a knave, and B's statement is indeed false.
Model response excerpt
Both B and C are logically consistent: A and B must be opposite types. The puzzle does not uniquely determine which one is which. Answer: B
Pointing at a photograph, a man says: "Brothers and sisters I have none, but that man's father is my father's son." Who is in the photograph?
- AHis father
- BHimself
- CHis nephew
- DHis sonmodel
Why: Having no siblings, 'my father's son' is the speaker himself; so the man in the photo has the speaker as father - the photo shows his son.
Model response excerpt
He has no siblings, so “my father’s son” refers to himself. Therefore, the man in the photograph is his son. Answer: D
In a race with four runners and no ties: Eve finished before Finn. Gabe finished after Finn but before Hera. Hera finished after Eve. Which finishing order (first to last) is consistent with all clues?
- AEve, Finn, Gabe, Heramodel
- BEve, Finn, Hera, Gabe
- CFinn, Eve, Gabe, Hera
- DEve, Gabe, Finn, Hera
Why: The clues give Eve > Finn > Gabe > Hera, which only the first order satisfies.
Model response excerpt
Eve must finish before Finn, Finn before Gabe, and Gabe before Hera, yielding `Eve, Finn, Gabe, Hera`. Answer: A
In a class of 30 students, 18 study mathematics, 15 study physics, and 8 study both. How many study neither subject?
- A12
- B5model
- C8
- D7
Why: By inclusion-exclusion, at least one subject is studied by 18 + 15 - 8 = 25 students, so 5 study neither.
Model response excerpt
Using inclusion-exclusion, studying at least one subject is `18 + 15 - 8 = 25`. Therefore, `30 - 25 = 5` study neither. Answer: B
Three crates are labeled "Apples", "Oranges", and "Apples & Oranges". Every label is on the wrong crate. You may draw one fruit, without looking, from one crate of your choice and inspect it. Which crate must you draw from to fix all labels with certainty?
- AThe crate labeled "Apples"
- BThe crate labeled "Oranges"
- CAny crate works
- DThe crate labeled "Apples & Oranges"model
Why: The "Apples & Oranges" crate must contain a single fruit type; one draw identifies it, and the other two crates are then forced by the all-labels-wrong condition.
Model response excerpt
Draw from the crate labeled “Apples & Oranges.” Since every label is wrong, that crate cannot be mixed, so the fruit drawn identifies whether it contains only apples or only oranges. The other two labels then follow by elimination. Answer:
Five friends P, Q, R, S, T sit in a row of five seats numbered 1 to 5. R sits exactly in the middle. P sits immediately to the left of R. T sits in seat 5. Q does not sit next to T. In which seat does S sit?
- ASeat 1
- BSeat 2
- CCannot be determined
- DSeat 4model
Why: R is in seat 3 and P in seat 2; T is in seat 5, so Q cannot take seat 4 and must take seat 1, leaving S in seat 4.
Model response excerpt
R is in seat 3, so P is in seat 2. T is in seat 5. The remaining seats are 1 and 4; Q cannot sit in seat 4 because it is next to T, so Q sits in seat 1 and S sits in seat 4. Answer: D
Ann, Ben, and Cal live in blue, red, and green houses, one each, and own a cat, a dog, and a parrot, one each. Clues: (1) Ann lives in the blue house. (2) The parrot owner lives in the red house. (3) Ben owns the cat. (4) Cal does not live in the green house. Who owns the dog?
- ABen
- BCannot be determined
- CCal
- DAnnmodel
Why: Ann is in blue; Cal cannot be in green, so Cal is in red and owns the parrot, Ben is in green with the cat, and Ann owns the dog.
Model response excerpt
Ann owns the dog. Answer: D
What number continues the sequence? 2, 4, 6, 8, ...
- A9
- B11
- C10model
- D12
Why: Each term increases by 2, so the next term is 10.
Model response excerpt
The sequence increases by 2 each time, so the next number is 10. Answer: C
What number continues the sequence? 1, 4, 9, 16, ...
- A33
- B25model
- C34
- D26
Why: The terms are perfect squares (1, 2, 3, 4 squared), so the next term is 5 squared = 25.
Model response excerpt
The terms are consecutive squares: \(1^2, 2^2, 3^2, 4^2\). Next is \(5^2 = 25\). Answer: B
What number continues the sequence? 2, 3, 5, 8, 12, ...
- A17model
- B16
- C15
- D18
Why: The differences grow by one each step (+1, +2, +3, +4), so the next difference is +5, giving 17.
Model response excerpt
The differences are increasing by 1: +1, +2, +3, +4, so next is +5. 12 + 5 = 17 Answer: A
What number continues the sequence? 3, 5, 9, 17, ...
- A25
- B33model
- C34
- D26
Why: Each term is double the previous minus one (2 x 17 - 1), giving 33.
Model response excerpt
The differences double: +2, +4, +8, so next is +16. Answer: B
What number continues the sequence? 81, 27, 9, ...
- A3model
- B6
- C1
- D4.5
Why: Each term is the previous divided by 3, so the next term is 3.
Model response excerpt
Each term is divided by 3: 81 → 27 → 9 → 3. Answer: A
What number continues the sequence? 2, 6, 12, 20, 30, ...
- A40
- B44
- C42model
- D36
Why: The terms follow n squared plus n (2, 6, 12, 20, 30), so the next term is 36 + 6 = 42.
Model response excerpt
The differences are `4, 6, 8, 10`, so the next difference is `12`: `30 + 12 = 42`. Answer: C
What number continues the sequence? 4, 5, 8, 13, 20, ...
- A27
- B30
- C29model
- D28
Why: The differences are consecutive odd numbers (1, 3, 5, 7), so the next difference is 9, giving 29.
Model response excerpt
The differences are consecutive odd numbers: +1, +3, +5, +7, so next is +9. 20 + 9 = 29 Answer: C
What number continues the sequence? 1, 4, 2, 8, 4, 16, ...
- A32
- B8model
- C12
- D6
Why: Two series are interleaved, each doubling: 1, 2, 4, 8 and 4, 8, 16, 32. The next term belongs to the first series, giving 8.
Model response excerpt
The pattern alternates multiplying by 4 and dividing by 2: 1 -> 4 -> 2 -> 8 -> 4 -> 16 -> 8 Answer: B
What number continues the sequence? 100, 50, 52, 26, 28, ...
- A14model
- B30
- C13
- D24
Why: The pattern alternates divide by 2 and add 2; after 28 the next operation is divide by 2, giving 14.
Model response excerpt
The pattern alternates: divide by 2, then add 2. After 28, divide by 2 gives 14. Answer: A
What number continues the sequence? 1, 2, 2, 4, 8, 32, ...
- A64
- B128
- C40
- D256model
Why: Each term is the product of the two preceding terms (8 x 32), giving 256.
Model response excerpt
Each term is the product of the two preceding terms: `32 × 8 = 256`. Answer: D
Puppy is to dog as kitten is to what?
- ACatmodel
- BMouse
- CDog
- DLion
Why: A puppy is the young of a dog, as a kitten is the young of a cat.
Model response excerpt
Answer: A
Hot is to cold as light is to what?
- ABright
- BLamp
- CHeavy
- DDarkmodel
Why: The pairs are antonyms; the opposite of light is dark.
Model response excerpt
Hot and cold are opposites; light and dark are opposites. Answer: D
Sculptor is to statue as architect is to what?
- ABuildingmodel
- BBlueprint
- CHammer
- DCity
Why: A sculptor creates statues as an architect creates buildings; a blueprint is a plan, not the created work.
Model response excerpt
A sculptor creates a statue; an architect creates a building. Answer: A
Which word does not belong with the others?
- ABanana
- BApple
- CPotatomodel
- DCherry
Why: Apple, banana, and cherry are fruits; potato is a vegetable (and the only one that grows underground).
Model response excerpt
Potato is the odd one out because it is a vegetable, while the others are fruits. Answer: C
Curious is to inquisitive as cruel is to what?
- AAngry
- BKind
- CMean
- DMaliciousmodel
Why: The pairs are close synonyms; 'malicious' matches 'cruel' most precisely.
Model response excerpt
“Curious” and “inquisitive” are close synonyms; “cruel” and “malicious” are likewise close in meaning. Answer: D
Ephemeral is to eternal as scarce is to what?
- AAbundantmodel
- BRare
- CLimited
- DEmpty
Why: The pairs are antonyms; the opposite of scarce is abundant.
Model response excerpt
“Ephemeral” is the opposite of “eternal,” so “scarce” pairs with its opposite, “abundant.” Answer: A
Chapter is to book as scene is to what?
- ATheater
- BStage
- CAct
- DPlaymodel
Why: A chapter is a section of a book as a scene is a section of a play.
Model response excerpt
A chapter is a subdivision of a book; likewise, a scene is a subdivision of a play. Answer: D
Garrulous is to taciturn as parsimonious is to what?
- AGenerous
- BFrugal
- CProdigalmodel
- DMiserly
Why: The pairs are antonyms; the opposite of parsimonious (stingy) is prodigal (extravagantly spending).
Model response excerpt
“Garrulous” and “taciturn” are opposites; “parsimonious” (stingy) is opposite to “prodigal” (wastefully generous). Answer: C
Fish is to school as wolf is to what?
- AHerd
- BFlock
- CPackmodel
- DPride
Why: The second word names the collective for the animal: a school of fish, a pack of wolves.
Model response excerpt
Fish form a school; wolves form a pack. Answer: C
Tundra is to arctic as savanna is to what?
- ADesert
- BTemperate forest
- CTropical grasslandmodel
- DMountain
Why: The pairs name a biome and its defining region: tundra is the arctic biome; savanna is the tropical grassland biome.
Model response excerpt
A tundra is an Arctic biome; a savanna is a tropical grassland. Answer: C