Model

o4 Mini

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-16-01JRZYX0JWD4SZX2XM43X603EH

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 grand hall’s chandelier trembled above polished marble floors as the detective entered, noting unnatural shadows behind crimson velvet curtains. Dripping blood trails wound toward heavy oak doors at the far end, while a single cold broken glass lay abandoned. Candles flickered ominously across ancient portraits, illuminating silent onlookers whose gazes seemed accusatory, yet no living witness dared even speak. A distant grandfather clock struck midnight, its low chimes echoing corridors, foretelling secrets that would soon unravel hidden family tragedies.
id"gen-1744829317-iGcU6y9IjywiKmQsrgRx" 
upstream_id"chatcmpl-BN26IjlPedFcgh2TPRSaxok3BGmSW" 
total_cost0.0073535
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:48:54.186155+00:00" Wednesday, April 16th, 2025 at 6:48:54 PM GMT+00:00
model"openai/o4-mini-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency15105
moderation_latency79
generation_time15980
tokens_prompt42
tokens_completion1642
native_tokens_prompt41
native_tokens_completion1661
native_tokens_reasoning1536
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" 
usage0.0073535

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
020
120
220
320