Run: 2026-03-18-01KM0AF57KB8VDXVM116XDYD8V

Run Details

Model:: GPT-5.4 Nano (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 3.4s
Cost:: $0.000767
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 tapped the manor windows as midnight bell tolled softly.  
Detective Mara Quinn arrived, coat dripping, notebook already open tonight.  
Inside, guests gathered around a silent ballroom pool of blood.  
Victim Lionel Brasky lay facedown, candle smoke clinging above him.  
The butler whispered that the door locked itself from inside.  
Mara studied footprints, noticing snowprints stopped at the threshold exactly.  
A revolver sat cold on velvet, wrapped in gloves neatly.  
Everyone watched her, yet no one would meet her eyes.

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