Run: 2026-03-18-01KM0985JYASC4T5G9V4DPHBSZ

Run Details

Model:: GPT-5.4 Nano (Reasoning, Low)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 4.9s
Cost:: $0.000653
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
100.00%	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

Rain hammered the courthouse steps as Detective Mara arrived alone.  
Inside, Judge Harlan lay sprawled beside the frozen fireplace quietly.  
His eyes stared upward, yet no breath clouded the air.  
Witnesses whispered that he argued moments before midnight, angrily here.  
Mara noted a cracked wineglass and unfamiliar ash on cuffs.  
The doctor said the heart stopped instantly, from something unseen.  
Councilman Reed insisted the courtroom was locked from within tonight.  
Mara smiled thinly, because keys had vanished between locks already.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

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