Claude Opus 5 scored 142 on our AI IQ test.
38 of 40 items correct (95% 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 increases from 1 to 2 to 3 across the columns. Therefore, cell (3,3) contains 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
Let me analyze the pattern in this grid. **Observations:** - Row 1: Each cell has 1 shape (circle, square, triangle in order) - Row 2: Each cell has 2 shapes (circles, squares, triangles in order) - Row 3: Each cell has 3 shapes (circles,
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
The number of diamonds increases by 1 across each row and down each column. The fill pattern alternates by column: solid, outline, solid. Therefore, cell (3,3) 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
Let me analyze the pattern in this 3x3 grid. **Examining the rows:** - Row 1: up, right, down - Row 2: up, right, down - Row 3: up, right, ? **Pattern observation:** Each row follows the same sequence of triangle directions: up → right →
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
Looking at this grid, I need to find the pattern in how numbers progress across each row. **Row 1 (circles):** 2 → 3 → 5 - The pattern is +1, then +2 **Row 2 (squares):** 1 → 4 → 5 - The pattern is +3, then +1 Let me check if there's a 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
I need to find the pattern in this 3x3 grid where each cell contains diamond shapes that are either solid or outline. Let me map out what we have: ``` Row 1: solid | solid | outline Row 2: outline | solid | solid Row 3: solid | outline |
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
The number of circles increases from 1 to 3 across each row, while the number of squares decreases from 3 to 1. Row 3 uses solid shapes, so the missing cell must contain 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
Looking at the grid, I need to find the pattern: **Row 1 (circles):** 2, 3, 4 — increases by 1 each column **Row 2 (squares):** 3, 4, 5 — increases by 1 each column **Row 3 (triangles):** 4, 5, ? — should increase by 1 each column Followi
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
Let me analyze the pattern in this 3x3 grid systematically. First, I'll map out what we have: - Row 1: 1 circle, 2 squares, 3 triangles - Row 2: 1 square, 2 triangles, 3 circles - Row 3: 1 triangle, 2 circles, ? Looking for patterns: **P
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
Each step to the right increases the number of diamonds by 1. The fill alternates: solid, outline, solid. Therefore, cell (3,3) contains **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
Let me work through this step by step. Given: - All programmers are engineers - All engineers are problem-solvers From these two statements, I can chain the logic: - If all programmers are engineers, AND - All engineers are problem-solver
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. Therefore, 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
This is a logical reasoning problem involving modus tollens. Given: - If it rains → concert is cancelled - The concert was NOT cancelled Using modus tollens: If P→Q is true, and Q is false, then P must be false. Since the concert was no
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
Reasoning: - If A were a knave, "B is a knave" would be false, so B would be a knight. But then B's claim "A and I are the same type" would be false (A knave, B knight), which a knight cannot say. Contradiction. - So A is a knight, making 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
Let me work through this step by step. The man says: "Brothers and sisters I have none, but that man's father is my father's son." First, I'll identify who "my father's son" is: - The speaker has no brothers or sisters - So "my father's s
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, Hera
- 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
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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
I need to find how many students study neither mathematics nor physics. Given information: - Total students: 30 - Study mathematics: 18 - Study physics: 15 - Study both: 8 Using the inclusion-exclusion principle: Students studying at leas
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
Let me reason through this step by step. Given information: - Three crates labeled "Apples", "Oranges", and "Apples & Oranges" - Every label is wrong - I can draw one fruit from one crate Since every label is wrong: - The crate labeled "A
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
I need to work through the seating arrangement step by step. Given information: - 5 seats numbered 1 to 5 - R sits exactly in the middle → R is in seat 3 - P sits immediately to the left of R → P is in seat 2 - T sits in seat 5 → T is in
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
Let me work through this step by step. Given information: - Three people: Ann, Ben, Cal - Three houses: blue, red, green - Three pets: cat, dog, parrot From the clues: (1) Ann lives in the blue house. - Ann → blue house (2) The parrot o
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
This is a simple arithmetic sequence where each number increases by 2. 2 → 4 (+2) 4 → 6 (+2) 6 → 8 (+2) 8 → ? (+2) The next number is 8 + 2 = 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
This sequence represents perfect squares: - 1 = 1² - 4 = 2² - 9 = 3² - 16 = 4² The next number would be 5² = 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
Looking at the sequence: 2, 3, 5, 8, 12, ... Let me find the pattern by examining the differences between consecutive terms: - 3 - 2 = 1 - 5 - 3 = 2 - 8 - 5 = 3 - 12 - 8 = 4 The differences form the sequence: 1, 2, 3, 4, ... Following th
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
Let me analyze the pattern in this sequence: 3, 5, 9, 17, ... Looking at the differences between consecutive terms: - 5 - 3 = 2 - 9 - 5 = 4 - 17 - 9 = 8 The differences are: 2, 4, 8 I can see that each difference is doubling: 2 × 2 = 4,
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
Looking at this sequence: 81, 27, 9, ... Each term is divided by 3 to get the next term: - 81 ÷ 3 = 27 - 27 ÷ 3 = 9 - 9 ÷ 3 = 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
Looking at this sequence: 2, 6, 12, 20, 30, ... Let me find the pattern by examining the differences between consecutive terms: - 6 - 2 = 4 - 12 - 6 = 6 - 20 - 12 = 8 - 30 - 20 = 10 The differences are: 4, 6, 8, 10 — increasing by 2 each
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
Looking at this sequence: 4, 5, 8, 13, 20, ... Let me find the pattern by examining the differences between consecutive terms: - 5 - 4 = 1 - 8 - 5 = 3 - 13 - 8 = 5 - 20 - 13 = 7 The differences are: 1, 3, 5, 7... These are consecutive od
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
Let me analyze this sequence step by step. Looking at the pattern: - Position 1: 1 - Position 2: 4 - Position 3: 2 - Position 4: 8 - Position 5: 4 - Position 6: 16 - Position 7: ? I notice there are two interleaved sequences: **Odd posit
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 sequence alternates between dividing by 2 and adding 2: - 100 ÷ 2 = 50 - 50 + 2 = 52 - 52 ÷ 2 = 26 - 26 + 2 = 28 - 28 ÷ 2 = 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 previous two terms: - \(1 \times 2 = 2\) - \(2 \times 2 = 4\) - \(2 \times 4 = 8\) - \(4 \times 8 = 32\) Thus, the next term is \(8 \times 32 = 256\). 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
A puppy is a young dog, so by the same relationship, a kitten is a young cat. 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
Let me work through this analogy step by step. Hot is to cold: These are opposites on a temperature spectrum. They represent opposite ends of the same dimension. Light is to ?: I need to find what stands in the same opposite relationship
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
I need to identify the relationship between sculptor and statue, then apply that same relationship to architect. A sculptor creates a statue - the statue is the physical result of the sculptor's work. An architect creates a building - th
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
I need to identify which word doesn't belong with the others. Looking at the options: - Banana: a fruit - Apple: a fruit - Potato: a vegetable (specifically a tuber/root vegetable) - Cherry: a fruit Three of these (banana, apple, cherry)
Curious is to inquisitive as cruel is to what?
- AAngry
- BKind
- CMeanmodel
- DMalicious
Why: The pairs are close synonyms; 'malicious' matches 'cruel' most precisely.
Model response excerpt
I need to find the relationship between "curious" and "inquisitive," then apply that same relationship to "cruel." "Curious" and "inquisitive" are synonyms - they both mean having a desire to learn or know more. So I need to find a synony
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 means short-lived, while eternal means everlasting. Scarce is the opposite of 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
Let me think through this analogy step by step. The relationship is: Chapter is to book as scene is to ___ A chapter is a subdivision or component part of a book. The book is the larger whole that contains multiple chapters. Similarly, a
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” means talkative, while “taciturn” means reserved—antonyms. “Parsimonious” means frugal or stingy, while “prodigal” means excessively wasteful—antonyms. 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 school together, and wolves travel and hunt together in 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
I need to identify the relationship between "tundra" and "arctic," then apply that same relationship to "savanna." Tundra is a biome characterized by cold temperatures, permafrost, and low vegetation that is found in arctic regions. So "tu