Run: 2026-03-09-01KK9QC6ADPFGBVHNBFS0HKGDB

Run Details

Model:: GPT-5.4 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 12.4s
Cost:: $0.008263
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 needled the manor windows as midnight swallowed Blackthorn Hall.  
Inside, silver candlesticks trembled beside portraits with watchful, varnished eyes.  
Evelyn Cross arrived late, her gloves damp, her smile flawless.  
Then a scream split supper, sharp enough to silence storms.  
Lord Harrow slumped forward, crimson spreading across his immaculate waistcoat.  
No knife appeared, yet everyone smelled fresh iron underneath roses.  
The grandfather clock chimed once, accusing each guest in turn.  
Before dawn, someone here would lie, and someone else die.

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