Run: 2026-02-16-01KHKA8SRP478PDYRRRDSZ8Z03

Run Details

Duration:
15.5s
Cost:
$0.011301
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the station roof as Detective Mara Quinn arrived. The last train had left, but one passenger remained tonight. He sat upright, eyes open, throat sliced to cartilage cleanly. Fluorescent lights flickered, painting everyone sickly shades of suspicion inside. Mara noted blood spatter patterns, delicate constellations across cracked tiles. The station master hovered nearby, twisting keys like nervous rosary. Outside, thunder drowned sirens, trapping them inside a temporary world. She checked pockets, finding no wallet, just a damp ticket. Its ink had bled, except for two legible words tonight. Mara glanced up, catching the security camera's single dead eye. Someone had planned darkness, then counted on the storm's noise. Footsteps approached cautiously, echoing like apologies along the platform length. Anxious officers arrived late, dripping rainwater, already rehearsing excuses quietly. Mara raised a hand, preserving silence like fragile crime glass. Somewhere beneath metal tracks, a phone vibrated, unheard, still ringing. The dead man's screen glowed, displaying her own unanswered number.
created_at"2026-02-16T13:29:53.043892+00:00" 2/16/2026, 1:29:53 PM
model"openai/gpt-5.1-20251113"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency12866
moderation_latency(null)
generation_time15312
tokens_prompt46
tokens_completion403
native_tokens_prompt41
native_tokens_completion1125
native_tokens_completion_images0
native_tokens_reasoning880
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"
usage0.01130125
router(null)
provider_responses
0
id"resp_0e36e255bacdccda0169931bc0597c81948001b37f7828f48b"
status200
is_byokfalse
latency157
endpoint_id"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.1-20251113"
api_type"completions"
id"gen-1771248576-zMGHNSsi2315kcMNGODV"
upstream_id"resp_0e36e255bacdccda0169931bc0597c81948001b37f7828f48b"
total_cost0.01130125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences16
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510