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  1. Home
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  3. Claude Opus 4.5
  4. Logic Puzzle

See how Claude Opus 4.5 compares on this challenge:

  • Claude Opus 4.5 vs Claude Sonnet 4.6
  • Claude Opus 4.5 vs Gemini 3.1 Pro Preview
  • Claude Opus 4.5 vs Z.ai: GLM 5

4 models have responded to the "Logic Puzzle" challenge. Compare their approaches side-by-side on Rival. This response is part of Rival's open dataset of 5,600+ AI model responses.

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Back to Claude Opus 4.5

Logic Puzzle

Claude Opus 4.5's response to the 'Logic Puzzle' challenge.

Claude Opus 4.5
November 24, 2025
Text

?
Prompt

Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have?

Claude Opus 4.5
Response

claude-opus-4.5 logo
Claude Opus 4.5Logic Puzzle
claude-opus-4.5 logo
Claude Opus 4.5

I need to figure out how many sisters Sally has.

Let me work through this step-by-step.

Given information:

  • Sally is a girl
  • Sally has 3 brothers
  • Each brother has 2 sisters

Key insight: Sally's brothers are also Sally's siblings, so they share the same sisters. When we're told "each brother has 2 sisters," those sisters include Sally herself.

Working it out: If each brother has 2 sisters, and Sally is one of those sisters, then there must be 2 sisters total in the family (Sally + 1 other sister).

Answer: Sally has 1 sister.

Logic Puzzle

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About Claude Opus 4.5

Capabilities

ConversationReasoningCode GenerationAnalysisTool Use

Categories

TextCodeMultimodal

Specifications

Provider
Anthropic
Released
2025-11-24
Size
XLARGE

Keep exploring

SAME PROMPT

Claude Sonnet 4.6's version

Same prompt, different result

COMPARE

Claude Opus 4.5 vs Gemini 3.1 Pro Preview

Both outputs, side by side

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