Run: 2026-03-18-01KM08NBNVEGX998N1CTQAH4QB

Run Details

Model:: GPT-5.4 Mini (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 7.8s
Cost:: $0.002506
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 worried the windows as Detective Mara entered Blackthorn Manor.  
Candles trembled, casting crooked shadows over the marble foyer below.  
At the center lay Lord Fenwick, dead beneath crystal chandeliers.  
No one screamed now; everyone had already done that privately.  
Mara noticed three teacups, one shattered, beside the victim's hand.  
The butler swore the doors remained locked from the inside.  
Mara smiled, because locked rooms always hid the simplest lies.

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