Run: 2026-03-06-01KK1JCVDE1Y31Y6NZ9M56CHD9

Run Details

Model:: GPT-5.4 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 4.5s
Cost:: $0.001917
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 stitched silver seams across Blackwell Manor's shuttered, sleepless windows.
Inside, mourners whispered while candles trembled beside portraits observing everyone.
A clock below the staircase swallowed each second with menace.
Then Aunt Lenora laughed upstairs, though everyone knew she’d died.
Silence crashed downward as the butler dropped a silver tray.
Inspector Vale removed his hat and counted the household twice.
Eleven guests remained, yet twelve wet footprints marked the marble.
Someone had returned tonight, carrying secrets sharper than carving knives.
When thunder opened the library, Lenora lay dead there again.

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
8	10