Model

GPT-4.1

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSXGR88S03QSA2PMD6Q9KW

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
Lightning splintered the midnight sky as Eleanor Ashcroft’s silhouette appeared, gliding across marble floors drenched in shadowed uncertainty. Her gold bracelet jingled faintly while the grandfather clock chimed twelve, its echoes weaving ghostly warnings through the opulent drawing room. Outside, rain battered the stained-glass windows, painting crimson reflections onto velvet drapes, as uneasy guests assembled behind closed mahogany doors. Detective Rowan paused in the foyer, his keen eyes noting muddy footprints, a crimson scrap snagged on the newel post. Nearby, a scream fractured the oppressive silence, shattering fragile calm and drawing trembling hands toward concealed secrets underneath the Persian rug.
id"gen-1744656319-P4zjGRN50TcymGjkdQ0e" 
upstream_id"chatcmpl-BMJ5zIuE1O8Dy1zrWtEZ5ujBwNmpI" 
total_cost0.001196
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:45:21.721862+00:00" Monday, April 14th, 2025 at 6:45:21 PM GMT+00:00
model"openai/gpt-4.1-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency370
moderation_latency100
generation_time1168
tokens_prompt42
tokens_completion138
native_tokens_prompt42
native_tokens_completion139
native_tokens_reasoning0
num_media_prompt(null)
num_media_completion(null)
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.001196

Evaluation details

Result Evaluator Details Meta Data
59.0985% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
018
121
221
320
421