Run: 2026-03-18-01KM0AMZKA2055P6YJKMNGSTEJ

Run Details

Model:: GPT-5.4 Mini (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 20 words each
Duration:: 11.7s
Cost:: $0.004247
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 20 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Rain stitched silver threads across Blackmere Manor, while thunder rolled beyond the hills and the guests pretended not to shiver. Inside the library, Inspector Vale studied the clock, because it had stopped at precisely eleven, though no one admitted noticing. A decanter tipped on its side, spilling brandy beneath the portrait of Lord Harrow, whose smile seemed newly amused tonight. Mina Frost stood nearest the fireplace, her gloved hands spotless, yet everyone noticed the red thread on her cuff tonight. Then the maid screamed, and Inspector Vale knew the storm had finally delivered the evening's true guest inside the manor.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	20
1	20
2	20
3	20
4	20