Model

GPT-4.1

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSQG06PNHVKHBPK6VP63JN

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
Heavy rain slapped the rooftop while lightning illuminated the ornate study, revealing six nervous guests whispering secrets among tumbling shadows. A grandfather clock in the corner struck midnight, echoing through the silence, as a scream shattered the fragile peace instantly. Detective Harris sipped cold coffee, notebook ready, eyes darting between anxious faces while a sense of unease prickled against his skin. On the polished mahogany floor, blood spread in a crimson halo around the lifeless host, Arthur Bainbridge, gentleman and collector. Curtains fluttered in the drafty window, and the house creaked with secrets as the suspects glanced uneasily at the corpse. A single gold cufflink glimmered near Arthur’s outstretched hand, while footprints smeared across the rug hinted at a hasty retreat.
id"gen-1744656123-fxqcCKF0yL8Vf63rTBlb" 
upstream_id"chatcmpl-BMJ2pSXrLz0rotwSNyQjD6vKZrm4F" 
total_cost0.00142
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:42:06.138541+00:00" Monday, April 14th, 2025 at 6:42:06 PM GMT+00:00
model"openai/gpt-4.1-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency341
moderation_latency112
generation_time1482
tokens_prompt42
tokens_completion166
native_tokens_prompt42
native_tokens_completion167
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" 
usage0.00142

Evaluation details

Result Evaluator Details Meta Data
93.4422% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
221
320
420
520