Model

o4 Mini

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-16-01JRZZ1W3188K0QD6MMK8KBCJ9

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
Moonlight seeped through shattered windows, illuminating crimson stains that spoke of ruthlessness, whispering secrets hidden within icy frozen midnight air. Detective Camille Hart stepped delicately between bodies, noting peculiar bruising patterns, while storm winds rattled loose ancient beams overhead unpredictably. Blood pooled around shattered glass, reflecting grim fragments of despair through ancient skeletal window frames like malevolent stained glass mosaics. A single pearl earring lay abandoned on cracked marble floor, its twin conspicuously missing beside the corpse’s outstretched, trembling hand. Detective Hart felt nerves prickle as distant church bells tolled midnight, chilling her bones with ominous portent and rising dread. Flickering candles sputtered, nightmarish shadows danced grotesquely across cold walls, transforming innocent tapestries into silent witnesses of unfolding sinister intrigue. Her gloved hand instinctively brushed concealed badge as she braced herself, determined to expose the merciless killer lurking within halls.
id"gen-1744829477-SlstnrhnR4uDn3rytWiN" 
upstream_id"chatcmpl-BN28r4VBZQWkaODgL94hlr6G5iYcZ" 
total_cost0.0105303
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:51:41.328138+00:00" Wednesday, April 16th, 2025 at 6:51:41 PM GMT+00:00
model"openai/o4-mini-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency21976
moderation_latency84
generation_time23584
tokens_prompt42
tokens_completion2364
native_tokens_prompt41
native_tokens_completion2383
native_tokens_reasoning2176
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" 
usage0.0105303

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
320
420
520
620