Model

GPT-4.1 Nano

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-04-14-01JRTSYX67D5WXK5D3SPY4VZ2C

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The fog rolled in quietly as dawn broke over the estate. In the grand hallway, Lady Evelyn’s body lay silent on carpet. Detective Harris stepped inside, eyes scanning the room for clues. A faint scent of perfume mingled with the smell of gunpowder. The chandelier above flickered softly, casting shadows across the scene. Footprints led from the door to the body, muddied and uneven. A broken teacup sat near her, spilled on the polished floor. Harris knelt down, noting a small bloodstain on her sleeve. Voices echoed outside; suspicious neighbors gathered, whispering nervously outside. Time seemed to freeze as silence settled on the mansion’s heavy walls.
id"gen-1744656365-r7HNCQpEJiEvHy311nZm" 
upstream_id"chatcmpl-BMJ6jTQTT7j5InBdqXcP2cyuDJsSj" 
total_cost0.000065
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:46:08.155983+00:00" Monday, April 14th, 2025 at 6:46:08 PM GMT+00:00
model"openai/gpt-4.1-nano-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency447
moderation_latency102
generation_time1928
tokens_prompt42
tokens_completion151
native_tokens_prompt42
native_tokens_completion152
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" 
usage0.000065

Evaluation details

Result Evaluator Details Meta Data
77.4610% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
011
111
210
311
410
511
611
710
89
912