Run: 2026-02-24-01KJ8V42MZXE5P57H7ZYJY7NPX

Run Details

Model:: Claude Opus 4.6 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 23.6s
Cost:: $0.035055
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 body lay face down.
Blood pooled on cold marble.
Detective Harris entered the room.
She studied the grim scene.
No windows had been broken.
The front door was locked.
Someone knew the victim well.
A glass sat half empty.
Red lipstick stained its rim.
The clock read midnight exactly.
Rain hammered against old windows.
Thunder shook the dark walls.
Harris knelt beside the corpse.
His name was Edward Blake.
He once owned this estate.
Now death owned him instead.
A crumpled letter lay nearby.
Three guests remained downstairs waiting.
Each one had a motive.
Tonight the truth would surface.

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