Run: 2026-02-24-01KJ8X17YFKW39M04S0EM2QC9R

Run Details

Model:: Claude Opus 4.6 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 16.7s
Cost:: $0.031555
Provider:: Amazon Bedrock

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

The body lay sprawled across the cold marble kitchen floor. Detective Harris arrived at the mansion just after midnight struck. Rain hammered the windows like a thousand tiny desperate fists. No one had heard the gunshot over the raging storm. The victim was Edward Cross, a wealthy and ruthless man. His wife stood trembling in the doorway, clutching her robe. She claimed she had been asleep when the murder happened. Harris knelt beside the body and studied the single wound. Someone in this house had wanted Edward Cross permanently silenced. The detective stood slowly and began his search for answers.

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
8	10
9	10