Run: 2026-02-24-01KJ8WS18X3MCRNME3R7R64891

Run Details

Model:: Claude Opus 4.6 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 17.8s
Cost:: $0.027480
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 tiles. Detective Vale entered the room. Rain tapped against dark windows. Nobody had heard a scream. The mansion held its breath. She knelt beside the corpse. A letter sat nearby, unopened. The victim was Eleanor Cross. Her emerald necklace was missing. Every guest remained a suspect. Vale studied the crime scene. Something here felt terribly wrong. The killer was still close. No one could leave 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
14	5