Run: 2026-02-20-01KHYASEYRNZP49B0REC57DC98

Run Details

Model:: Grok 4 Fast
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 2.8s
Cost:: $0.000254
Provider:: xAI

Evaluation summary

Score	Evaluator	Details Link
90.28%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 10 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

The fog-shrouded mansion creaked beneath the stormy midnight sky above.  
Guests gathered warmly inside, laughing over crystal glasses of wine.  
Sir Reginald hosted the party with his usual charming flair.  
Suddenly, a piercing scream echoed through the grand oak-paneled hall.  
Lady Eleanor collapsed near the fireplace, her body lifeless and still.  
Blood pooled slowly on the Persian rug beneath her head.  
Whispers spread quickly as shock froze the assembled crowd now.  
Detective Harlan arrived swiftly, his keen eyes scanning the room.

Evaluation details

Result

Evaluator

Details

Meta Data

90.28%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	11
1	10
2	10
3	11
4	11
5	10
6	10
7	10