Run: 2026-05-01-01KQHQFPJJP250Z99HSG0FGTQX

Run Details

Model:: Grok 4.20
Test:: N-Length Sentences
Scenario:: Write sentences with 20 words each
Duration:: 3.3s
Cost:: $0.000397
Provider:: xAI

Evaluation summary

Score	Evaluator	Details Link
0.49%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 20 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

The elegant ballroom sparkled under crystal chandeliers during the exclusive charity gala event that night. 
Guests mingled gracefully while sipping fine champagne and exchanging polite conversation with one another happily. 
Suddenly a sharp scream pierced through the ambient music causing immediate chaos among the shocked attendees present. 
Detective Harlan Black arrived swiftly at the scene carrying his trusted notebook and forensic tools carefully. 
The victim lay motionless on the polished marble floor surrounded by curious onlookers and spilled red wine. 
Harlan surveyed the opulent room methodically searching for any clues that might solve this puzzling case. 
Hidden motives and secret affairs seemed likely among these wealthy sophisticated people attending the lavish celebration tonight.

Evaluation details

Result

Evaluator

Details

Meta Data

0.49%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	15
1	15
2	17
3	16
4	17
5	16
6	17