Run: 2026-09-29-01M3P2A4RW54QCHG34HWJQRZ1M

Run Details

Model:: Claude Sonnet 5.5 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 10.1s
Cost:: $0.011354
Provider:: Claude Platform on AWS

Evaluation summary

Score	Evaluator	Details Link
94.74%	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 hammered the manor windows. Inspector Hale shook his coat. The butler stood pale, trembling. Lord Ashby is dead, sir. Where is the body now? Library, sir, beside the fireplace. Hale followed down the hallway. Portraits watched with painted eyes. The library door stood open. Lord Ashby lay face down. A silver dagger pierced him. The mantel clock read midnight. Hale knelt and studied everything. No forced windows, no struggle. Someone here knew him well. Who discovered him first, Barnes? Lady Ashby screamed from upstairs. Everyone in this house lies. Hale smiled without any warmth. Tonight, someone will confess, Barnes.

Evaluation details

Result

Evaluator

Details

Meta Data

94.74%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	10
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