Model

o4 Mini High

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-16-01JRZZBTR94MJZYR16GS6QHSZW

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
Night rain rattled against the stained window as Detective Archer discovered the lifeless body sprawled across the cold marble foyer. A single bloodied glove lay abandoned near the broken door, haunted by unsettling whispers of betrayal and silent final breaths. Fluorescent lamps flickered erratically overhead, casting long emerald shadows across polished floors stained with evidence of a once joyous celebration. Detective Archer’s gloved fingers trembled against the victim’s wrist, searching futilely for any remaining signs of life that never returned. Far beyond the ornate threshold, ominous ticking from a hidden clock echoed as though marking final moments before unwelcome revelation.
id"gen-1744829803-RqUfm8l1nijIh4j9A8S8" 
upstream_id"chatcmpl-BN2E7IKFb8GHeJM3R91ntXRmL81PZ" 
total_cost0.0097119
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:57:06.753779+00:00" Wednesday, April 16th, 2025 at 6:57:06 PM GMT+00:00
model"openai/o4-mini-high-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency21460
moderation_latency94
generation_time22527
tokens_prompt42
tokens_completion2178
native_tokens_prompt41
native_tokens_completion2197
native_tokens_reasoning2048
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" 
usage0.0097119

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420