Model

Claude Opus 4

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-05-22-01JVWMTSBEK15WSJ70WMCSVTYN

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The grandfather clock struck midnight as Detective Sarah Chen entered the Victorian mansion through its heavy oak front door. Blood pooled beneath the chandelier where Marcus Wellington lay motionless, his expensive suit ruined by a single bullet wound. The butler stood frozen near the marble staircase, his white gloves trembling as he clutched a silver serving tray. Chen noticed the study door was ajar, revealing scattered papers and an overturned chair suggesting a violent struggle inside. Mrs. Wellington sat sobbing in the parlor, her pearl necklace catching the light as her shoulders shook with grief. The detective heard footsteps upstairs despite the butler's insistence that all family members were accounted for in the parlor. A champagne flute lay shattered near the victim's hand, its contents mixing with blood on the Persian rug below. Chen pulled on latex gloves and approached the body, noting the peculiar angle of the wound and powder burns. The storm outside intensified, rattling windows and casting eerie shadows across the crime scene as lightning illuminated the room. Someone in this house was a murderer, and Chen would not leave until she discovered who pulled the trigger.

Evaluation details

Result Evaluator Details Meta Data
60.6531% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
019
119
219
319
419
519
619
719
819
919