Model

GPT-4.1 Nano

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSW23HEVK6E0AHNSCJ4KY7

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 rain pounded softly against the window as Detective Harper arrived at the eerie, abandoned mansion on foggy, deserted midnight streets. Inside, the chilling silence was broken only by distant thunder, revealing a scene of chaos and imminent danger in the dimly lit hall. A broken vase and scattered papers told silent stories of frantic struggle, while faint bloodstains marked the cold marble floor. Harper's eyes scanned the room carefully, noting every detail, suspecting the victim had fought hard before succumbing to deadly injuries. With hesitant steps, she approached the lifeless body sprawled nearby, observing the silent, tragic expression frozen on their face. The room's atmosphere thickened with secret shadows, whispering possibilities of hidden motives, unexplained motives, and lurking deadly truths concealed.
id"gen-1744656272-uuWpTpE6YIzUddLHtCWJ" 
upstream_id"chatcmpl-BMJ5EmoQfaEw6zV3oARiT8t6bHzNl" 
total_cost0.000069
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:44:34.32729+00:00" Monday, April 14th, 2025 at 6:44:34 PM GMT+00:00
model"openai/gpt-4.1-nano-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency314
moderation_latency118
generation_time1519
tokens_prompt42
tokens_completion161
native_tokens_prompt42
native_tokens_completion162
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" 
usage0.000069

Evaluation details

Result Evaluator Details Meta Data
63.8450% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
021
123
220
320
419
519