Run: 2026-05-01-01KQHS28P3DHQE1PJNSR4BAFBS

Run Details

Model:: Grok 4.20
Test:: N-Length Sentences
Scenario:: Write sentences with 20 words each
Duration:: 2.9s
Cost:: $0.000442
Provider:: xAI

Evaluation summary

Score	Evaluator	Details Link
0.17%	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 detective arrived at the opulent mansion under a stormy sky filled with ominous clouds that night.  
He noticed the heavy wooden door slightly ajar revealing a dark hallway with flickering lights inside.  
A single scream echoed through the silence shattering the quiet evening and alerting everyone nearby.  
Blood pooled around the victim lying motionless on the ornate Persian rug in the study.  
The butler stood frozen nearby holding a silver tray with trembling hands and pale face.  
Footsteps approached from the shadows as the other guests gathered whispering suspicions among themselves anxiously.  
The clock struck midnight marking the beginning of an investigation that would uncover hidden family secrets.

Evaluation details

Result

Evaluator

Details

Meta Data

0.17%

Matches word count

n/a

neededClean

false

sentences

wordCounts

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