NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4
Test
N-Length Sentences
Scenario
Write sentences with 5 words each
Run ID
2025-05-22-01JVWHVMZ9ZB3M3BVH2GBNV2ZB
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
Messages
Meta
AI
The lighthouse keeper was dead. Blood pooled beneath his body. The storm had finally passed. Detective Sarah Chen arrived early. She studied the crime scene. The wooden floor creaked softly. No signs of forced entry. The victim's face seemed peaceful. His coffee cup sat untouched. Morning light revealed fresh footprints. Sarah photographed every small detail. The lighthouse beam still rotated. Seagulls circled overhead, crying loudly. She noticed something rather peculiar. The clock had stopped precisely. "Time of death," she muttered. The hands showed three fifteen. But which three fifteen exactly? Yesterday evening or this morning? The coroner would know soon. Sarah pulled on latex gloves. The keeper's logbook lay open. Last entry was dated yesterday. "Strange visitors at the dock." No names had been recorded. The lighthouse held many secrets. Sarah would uncover them all. This death wasn't merely accidental. Someone wanted the keeper silenced. But why kill him now?
Evaluation details
Result
Evaluator
Details
Meta Data
96.5517%
Matches word count
n/a
neededClean
false
sentences
29
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
20
5
21
5
22
5
23
10
24
5
25
5
26
5
27
5
28
5