Model

o4 Mini High

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-16-01JRZZ8Q5KMF80B0QK7DEXT02M

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
A solitary thunderclap shattered midnight silence while flickering candles cast dancing shadows across the grand foyer’s antique elegant marble floor. A figure lay motionless at the base of an ornate stairwell stained crimson deeply by viscous, ominous droplets of blood. Detective Marlowe exhaled a long, smoky breath beneath his wide-brimmed fedora while surveying the gruesome tableau with silent, icy determination. A chorus of whispers echoed through moonlit corridors as anxious guests huddled behind closed doors, fearing hidden murderer among them. Somebody’s desperate scream still resonated eerily inside ancient walls, promising that tonight’s silence would suddenly break in bloody, unforgiving revelation.
id"gen-1744829701-kk0muj9ozErq3oCNpY1S" 
upstream_id"chatcmpl-BN2CTgNWQNzfKL53HBbn3dHOzsT08" 
total_cost0.0164967
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:55:39.367263+00:00" Wednesday, April 16th, 2025 at 6:55:39 PM GMT+00:00
model"openai/o4-mini-high-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency36161
moderation_latency97
generation_time37463
tokens_prompt42
tokens_completion3720
native_tokens_prompt41
native_tokens_completion3739
native_tokens_reasoning3584
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" 
usage0.0164967

Evaluation details

Result Evaluator Details Meta Data
92.1306% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
221
320
420