Run: 2026-09-23-01M36P56T68A0M6GCT7JST9SGS

Run Details

Model:: GPT-6 Luna
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 2.8s
Cost:: $0.000062
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
71.97%	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 veiled Blackthorn Manor as Detective Mara Vale arrived alone.
The butler waited beneath the portico, trembling beside the open door.
Inside, Lord Ashcombe lay beneath the chandelier, perfectly still, smiling.
A silver knife rested beside him, its blade strangely spotless.
Mara noticed muddy footprints circling the body, then stopping abruptly.
“Who found him?” she asked, watching every face for answers.
“Everyone,” whispered the butler. “The doors were locked from inside.”
Thunder shook the windows; somewhere upstairs, a child began laughing.

Evaluation details

Result

Evaluator

Details

Meta Data

71.97%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	10
1	11
2	10
3	10
4	10
5	14
6	6
7	10