Model

o4 Mini

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-16-01JRZZD1GGPWXAKSSRG4DMTTND

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 crack of lightning illuminated the dilapidated corridor as Detective Archer stepped cautiously toward the fresh, crimson-stained, still, lifeless body. Thunder shook the ancient walls while rain pounded against shattered windows, creating an eerie rhythm that echoed through silent halls. Detective Archer paused, glancing over his shoulder as a cold breeze carried distant whispers from rooms drenched in ominous darkness. A lamp flickered violently, casting distorted shadows across ancient wallpaper, heightening tension as Detective Archer steeled against a lurking murderer. In that moment, footsteps approached from the dim hallway, echoing ominously before abruptly stopping just beyond Archer’s trembling flashlight beam.
id"gen-1744829843-WDhSndnAWrciwYnlTCDT" 
upstream_id"chatcmpl-BN2ElL84YoNV2iGzkASH3C7TD4XrJ" 
total_cost0.0187407
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:58:02.088996+00:00" Wednesday, April 16th, 2025 at 6:58:02 PM GMT+00:00
model"openai/o4-mini-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency37469
moderation_latency204
generation_time38065
tokens_prompt42
tokens_completion4230
native_tokens_prompt41
native_tokens_completion4249
native_tokens_reasoning4096
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" 
usage0.0187407

Evaluation details

Result Evaluator Details Meta Data
92.1306% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
021
120
220
320
420