Run: 2026-10-08-01M4D9ZX04ZD60BPT9SHY7X3XR

Run Details

Model:: Claude Haiku 5.5 (Reasoning, Medium)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 6.9s
Cost:: $0.000554
Provider:: Claude Platform on AWS

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 rain fell hard tonight.
Detective Mara Voss arrived late.
Yellow tape fluttered across doorways.
Inside, the body waited silently.
Victor Hale lay face down.
His coffee cup sat untouched.
Nobody had touched anything yet.
Mara knelt beside the victim.
Something glinted beneath the desk.
She reached for it carefully.
Gloved fingers closed around metal.
A key, bloodstained, rested there.
Footsteps echoed in the hallway.
Someone still lingered inside tonight.

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