Run: 2026-04-24-01KQ0GFGA66CJ208PVEMNCYPYP

Run Details

Model:: Claude Opus 4.7 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 7.4s
Cost:: $0.025675
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 rain fell hard against the old manor's tall windows. Detective Harlow stepped inside, removing his damp woolen coat slowly. A body lay sprawled across the cold marble foyer floor. Lady Ashworth clutched her pearls, trembling beside the grand staircase. Blood pooled beneath a silver letter opener driven deep within. Thunder cracked above, rattling the crystal chandelier overhead quite violently. Harlow knelt down, studying the victim's pale, frozen, astonished face. Seven guests waited nervously in the parlor, each harboring secrets. Someone inside this house had committed murder before 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
8	10