Run: 2026-03-18-01KM08K9E1G3M03KM6B0MZPF7S

Run Details

Model:: GPT-5.4 Mini
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 1.1s
Cost:: $0.000656
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
94.24%	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

Fog clung to Wrenhaven Manor, swallowing moonlight and good intentions.  
Inside, chandeliers trembled above guests who smiled too carefully.  
Captain Vale arrived late, carrying rain, suspicion, and a sealed letter.  
The host, Elias Thorne, greeted him with a bloodless grin.  
Music faltered when a scream split the ballroom’s polished hush.  
They found Lady Marrow collapsed beside the fountain, jewelry scattered.  
Her eyes stared upward, accusing someone among the silent guests.  
Captain Vale noticed one wet footprint leading toward the library.  
And there, on the desk, rested a knife still warm.

Evaluation details

Result

Evaluator

Details

Meta Data

94.24%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	10
1	9
2	11
3	10
4	10
5	10
6	10
7	10
8	10