Run: 2026-03-09-01KKAC3T4E8910X61ES5SG791W

Run Details

Model:: GPT-5.4 (Reasoning, Low)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 7.2s
Cost:: $0.006748
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 Blackthorn Hall swallowed the dusk.
Inside, the guests laughed softly, hiding old grudges behind crystal.
A violin trembled upstairs while candles guttered along the corridor.
Then Lady Wren touched her throat and collapsed beside supper.
The music stopped first; the screaming came a heartbeat later.
On her pearls bloomed something darker than wine, darker still.
Detective Vale set down his glass and locked the doors.
Nobody noticed the missing silver letter opener until midnight struck.

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