Model

o4 Mini High

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-16-01JRZYYS9JF6MXCYM0JJM6G27B

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
Midnight rain fell in heavy sheets against the ancient manor’s windows, obscuring moonlight while eerie shadows danced across dust-covered floors. Detective Louisa Carver arrived silently, her footsteps echoing through the grand hall as lightning flickered across polished ancient marble columns. A single bloodstained glove lay abandoned on the oriental rug near the mahogany desk, its twin mysteriously vanished without trace. Sir Bennett Thurston’s lifeless body slumped against a velvet-covered chaise lounge, his face frozen in grim shock and silent accusation. Lady Clarissa’s trembling voice quivered from the library’s ornate stained-glass doorway, pleading innocence while fingernails bit into trembling pale knuckles. Detective Carver inhaled sharply, noting a shattered porcelain teacup on the floor’s edge, smelling bitter almonds mixed with spilled tea. She understood instantly that this was no accident; motive lurked behind every portrait and whispered secret in this cursed estate.
id"gen-1744829376-BbJi3uawC8hXh2X1N0w8" 
upstream_id"chatcmpl-BN27EBmgVYqmNkNcWfgJZQsWRgIND" 
total_cost0.0161975
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:50:25.146699+00:00" Wednesday, April 16th, 2025 at 6:50:25 PM GMT+00:00
model"openai/o4-mini-high-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency46068
moderation_latency87
generation_time48605
tokens_prompt42
tokens_completion3652
native_tokens_prompt41
native_tokens_completion3671
native_tokens_reasoning3456
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" 
usage0.0161975

Evaluation details

Result Evaluator Details Meta Data
83.1370% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
021
120
220
321
421
520
620