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.
Logic Puzzle
Grok 4.1 Fast's response to the 'Logic Puzzle' challenge.
Grok 4.1 Fast
November 21, 2025
Text
?Prompt
Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have?
Response
1
Sally and her family consist of 2 girls (Sally + 1 sister) and 3 boys. Each brother has both girls as sisters (2 sisters total), which matches the given info. Sally thus has 1 sister.
Logic Puzzle
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About Grok 4.1 Fast
Capabilities
ConversationReasoningCode GenerationAnalysisTool Use
Categories
TextCodeMultimodal
Specifications
- Provider
- Xai
- Released
- 2025-11-21
- Size
- XLARGE
