Run: 2026-07-01-01KWE8QKS2Z2WSYY0XRNGACD80

Run Details

Model:: Claude Sonnet 5
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 6.4s
Cost:: $0.002440
Provider:: Amazon Bedrock

Evaluation summary

Score	Evaluator	Details Link
90.18%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Rain fell hard on Elmwood. Detective Grace parked her car. The old house loomed darkly. Windows stared like empty eyes. She stepped out, boots splashing. A butler waited at the door. His face looked pale and grim. "Thank you for coming quickly," he whispered. Grace nodded, walking up steps. Inside, silence pressed against her. The body lay near the fireplace. Blood pooled dark on carpet. Grace knelt down, examining closely. No weapon rested near him. Someone had planned this carefully. She glanced toward the window. Curtains moved without any wind. Outside, thunder cracked like gunfire. Grace whispered, "Let the hunt begin."

Evaluation details

Result

Evaluator

Details

Meta Data

90.18%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	5
4	5
5	6
6	6
7	7
8	5
9	5
10	6
11	5
12	5
13	5
14	5
15	5
16	5
17	5
18	6