Run: 2026-02-16-01KHKAKTNMSXJQGQHRE7ZAZ3TF

Run Details

Duration:
32.2s
Cost:
$0.006852
Provider:
OpenAI

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 the attic window as the gardener discovered a hand in the rosebush under moonlight's thin wash of blood. Neighbors gathered at iron gates, whispering names like confessions while detectives sealed the lane and photographed muddy footprints with care. Inside the manor's parlor, a shattered crystal decanter glowed beside a body draped over antique carpet and wilted lilies sadly. Her fingers curled around a theater ticket, mouthing unreadable words, as if rehearsing an alibi from beyond in faded ink. Detective Marlowe, trench coat dripping rain, lit a cigarette and watched candlelight tremble across the victim's still, pale face lonely. An envelope lay at her side, stamped with a crimson seal and scrawled letters that spelled only one word: betrayal. The butler's hands trembled as he admitted hearing muffled arguments around midnight, laughter laced with something like menace and denial. Outside, a stray dog nosed at a crimson smear on the lane, snuffling evidence neither human courage nor conscience could. Rain stitched the night into darker seams while the county coroner arrived with gloved hands and solemn, precise movements again. Murmurs folded into the wallpaper's faded pattern, gossip arranging itself into motives, alibis, and ancient grudges rekindled tonight like tinder. Marlowe closed his eyes briefly, imagining every suspect's small, secret life turning suddenly monstrous under police lights and public shame.
created_at"2026-02-16T13:36:10.674308+00:00" 2/16/2026, 1:36:10 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2548
moderation_latency(null)
generation_time32056
tokens_prompt46
tokens_completion1077
native_tokens_prompt41
native_tokens_completion3421
native_tokens_completion_images0
native_tokens_reasoning3072
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00685225
router(null)
provider_responses
0
id"resp_0218388a87fa72620169931d29bf0c81969a9044dfb87c1793"
status200
is_byokfalse
latency136
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771248937-AtdruCuRVm0nUKOT9N2y"
upstream_id"resp_0218388a87fa72620169931d29bf0c81969a9044dfb87c1793"
total_cost0.00685225
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences11
wordCounts
020
120
220
320
420
520
620
720
820
920
1020