Model

GPT-4.1

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSTGWZ387FACHJPK73M1T2

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, echoing through Rosewood Manor as shadows danced across the burgundy wallpaper like restless specters. Rain battered the stained-glass windows, obscuring the garden where a lone black cat watched intently, its paws treading silently. In the ornate dining room, seven guests clutched champagne glasses, their laughter sounding forced, eyes darting nervously to the chandelier above. A sudden crash shattered the uneasy calm, spilling silver soup tureen across the polished table and sending peacock feathers flying. Lady Winslow’s pearl necklace snapped, scattering luminous beads as she turned to find the lifeless body sprawled in the doorway. Every guest stood frozen, pulses racing, uncertain whether to scream, confess, or scrutinize each face illuminated by lightning’s harsh glare.
id"gen-1744656221-xAJBPT8nYlOcYrvxiWAQ" 
upstream_id"chatcmpl-BMJ4Pa8ndaxj1JVl8Qt4Oa1RPcgVj" 
total_cost0.001396
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:43:44.042758+00:00" Monday, April 14th, 2025 at 6:43:44 PM GMT+00:00
model"openai/gpt-4.1-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency448
moderation_latency91
generation_time1557
tokens_prompt42
tokens_completion163
native_tokens_prompt42
native_tokens_completion164
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" 
usage0.001396

Evaluation details

Result Evaluator Details Meta Data
86.8844% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
019
120
221
320
420
520