Run: 2025-05-22-01JVWM3BQAVFQ9SYX3AT5X1D2W

Run Details

Model:: Claude Opus 4
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 13.5s
Cost:: $0.011235

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 mansion stood eerily silent. Rain hammered against tall windows. Lightning illuminated the grand foyer. Butler Jenkins discovered the body. Lord Ashford lay completely still. Blood pooled beneath his head. The study door remained open. Papers scattered across the floor. A letter opener gleamed nearby. Someone screamed from upstairs suddenly. Footsteps echoed through empty halls. The grandfather clock struck midnight. No one could leave tonight. The bridge had washed out. Eight guests remained trapped inside. Each held a deadly secret. Inspector Shaw would arrive tomorrow. Until then, nobody felt safe. The killer walked among them. Another scream pierced the darkness.

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