Run: 2026-04-24-01KPZTT96XVYBQKXYJS3C6E6VE

Run Details

Model:: Claude Opus 4.7
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 4.4s
Cost:: $0.006225
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

Rain hammered the cobblestones outside the old Ashford Manor gates. Detective Miriam Vale stepped carefully around the shattered glass shards. A single shoe lay upturned near the marble fountain's edge. The butler stood trembling beneath a black umbrella, saying nothing. Inside, the grandfather clock chimed three times, then fell silent. Lord Ashford sprawled across his desk, a letter clutched tight. Blood pooled slowly beneath the fine Persian rug's woven edge. Miriam knelt down, studying the victim's face with quiet intensity. His eyes were open, fixed upon the cracked window above. Someone had been watching him die, she realized with certainty.

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