Run: 2026-03-06-01KK1J44CJJE15PHK2EG72V90X

Run Details

Model:: GPT-5.4 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 4.6s
Cost:: $0.001708
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 hammered Blackthorn Manor as mourners gathered for Lady Vale.
Candles trembled inside, casting shadows across portraits with accusing eyes.
Detective Rowan Pike arrived late, his coat smelling of thunder.
No one noticed the grandfather clock had stopped at eleven.
Then a scream pierced supper, and silver clattered across linen.
When lights returned, Lord Vale slumped forward, throat neatly opened.
Beside his hand, someone placed a single white chess pawn.
Outside, the storm erased footprints before Rowan reached the terrace.

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