Run: 2025-05-22-01JVWHF066KZ2DFV4YEZGCH5B4

Run Details

Model:: Claude Opus 4
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 12.3s
Cost:: $0.011835

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 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

The lighthouse keeper was dead. His body lay sprawled awkwardly. Blood pooled beneath his head. The morning fog rolled in. Sarah Miller gripped her badge. She had arrived too late. The wooden floorboards creaked ominously. Someone had smashed the window. Glass shards glittered like diamonds. The lighthouse beam still rotated. Its light swept the ocean. No one had heard screams. The nearest neighbor lived far. This death wasn't an accident. Sarah photographed the crime scene. The victim's hands were bound. His coffee mug sat untouched. Yesterday's newspaper remained perfectly folded. Someone he trusted did this. The killer left no footprints.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	5
4	5
5	5
6	5
7	5
8	5
9	5
10	5
11	5
12	5
13	5
14	5
15	5
16	5
17	5
18	5
19	5