Run: 2026-02-24-01KJ8VA47ATXKG0YRQ6VXB2NEF

Run Details

Model:: Claude Opus 4.6 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 17.0s
Cost:: $0.034605
Provider:: Amazon Bedrock

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 completely silent. Rain hammered the old roof. Detective Cole entered the room. Blood stained the marble floor. A body lay face down. No one had called police. The butler discovered the corpse. His hands were still shaking. Cole knelt beside the victim. She recognized the dead man. Lord Ashworth hosted grand parties. Now he hosted only death. A knife pierced his back. Someone wanted him permanently silent. The guests waited downstairs nervously. Each one had a motive. Cole pulled out her notebook. Tonight would be very long. The truth hides among liars.

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