Run: 2025-04-16-01JRZZ9TSXQE5GQ9JWAQDWK6B3

Run Details

Duration:
31.3s
Cost:
$0.013637
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

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
Thunder rattled ancient windows as Detective Harper surveyed the dimly lit library filled with silent witnesses and looming ominous shadows. A single pale candle flickered atop an ancient oak desk, casting wavering light across scattered papers and a bloodstained letter. Rain pounded relentless rhythms against rooftops outside, drowning midnight murmurs while shadows danced mockingly across timeworn bookshelves and dusty floors. Detective Harper held trembling notebook close, scribbling fragmented confessions overheard at the tavern where anxious whispers hinted at murderous intent. A solitary scream tore through midnight's stillness, echoing long corridors before abruptly silencing as dread settled over every captive heart. An ornate grandfather clock chimed ominously, each resonant bell reminding Detective Harper of time slipping away before justice ultimately prevailed. Footsteps approached silently from behind layers of darkness, leaving Detective Harper certain that the killer lurked just beyond flickering lamplight.
id"gen-1744829738-axaKMdUroV4kY8Fr86wt"
upstream_id"chatcmpl-BN2D4FdBgdPSppXxcgbYfEIpsqrVP"
total_cost0.0136367
cache_discount(null)
provider_name"OpenAI"
created_at"2025-04-16T18:56:09.084805+00:00" 4/16/2025, 6:56:09 PM
model"openai/o4-mini-high-2025-04-16"
app_id182717
streamedtrue
cancelledfalse
latency28685
moderation_latency432
generation_time30244
tokens_prompt42
tokens_completion3070
native_tokens_prompt41
native_tokens_completion3089
native_tokens_reasoning2880
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"
usage0.0136367

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
320
420
520
620