NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-05-22-01JVWSQBRKHH9GVVE0F0Y02SYS
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The Victorian mansion stood silent against the stormy November sky. Detective Sarah Chen arrived at exactly nine thirty that morning. The butler greeted her with trembling hands and worried eyes. "Lady Margaret Ashworth has been found dead upstairs, Detective Chen." The elaborate marble staircase curved upward toward the second floor. Sarah noticed muddy footprints leading from the front entrance door. The grandfather clock in the hallway had stopped at midnight. Something about this crime scene felt deliberately staged and very wrong. "Who discovered the body this morning?" Sarah asked the butler. "The housemaid, Miss Emma, during her usual six o'clock rounds." Sarah pulled on latex gloves and started climbing the stairs. The portraits on the walls seemed to watch her progress. Lady Margaret's bedroom door stood slightly ajar, creaking softly now. The metallic smell of blood hit Sarah immediately upon entering. The victim lay sprawled across her enormous four poster bed. A silver letter opener protruded from her silk nightgown chest. "Nobody must enter this room until forensics arrives here quickly," Sarah commanded, though she sensed evidence had already been disturbed. The window was open, white curtains dancing in cold wind. On the nightstand sat an empty wine glass, lipstick stained. This would not be a simple case to solve today.
Evaluation details
Result
Evaluator
Details
Meta Data
88.1096%
Matches word count
n/a
neededClean
false
sentences
19
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
11
8
10
9
20
10
10
11
10
12
10
13
10
14
10
15
20
16
10
17
10
18
10