Run: 2026-02-24-01KJ8VTE5PR11FRDTTVMC6AN0R

Run Details

Model:: Claude Opus 4.6 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 27.9s
Cost:: $0.035130
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 detective arrived at midnight.
Rain hammered the old mansion.
A body lay face down.
Blood pooled on cold marble.
The victim was Edward Cross.
His wife found him first.
She claimed hearing nothing unusual.
Three guests remained inside tonight.
Each one had a motive.
The murder weapon was missing.
Someone here was a killer.
Detective Shaw studied every face.
Guilt hides behind calm smiles.
This night held dark secrets.
The investigation had just begun.

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