Run: 2026-02-16-01KHKAE5T2V9K21EEEAA5QBVVF

Run Details

Duration:
25.0s
Cost:
$0.015801
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
Rain glazed the cobblestones outside Harrowgate Station as Detective Mara Quinn stepped from the train, collar already dripping with rainwater. She expected another petty theft in the sleepy town, not the uniformed constable sprinting toward her, eyes wild with panic. Breathless, he blurted that the vicar was dead inside the rectory, locked study door splintered from repeated blows last night. Mara followed him through twisting lanes, noting curtains twitching back, residents counting sirens like others might count falling stars tonight. At Saint Bartholomews gate, rainwater pooled crimson along the gravel path, thin rivulets escaping beneath the heavy oak door inside. Inside, candles guttered in the draughty nave, shadows climbing cracked stone walls like penitents ascending toward some absent salvation above. The constable pushed open the study, revealing incense haze, overturned chair, and the vicar sprawled across Persian carpet, throat ruined. Books lay scattered like startled birds, one massive Bible open beside him, its pages soaked dark where his blood gathered. Mara knelt carefully, inhaling copper and incense, her gloved fingers hovering above wounds carved with almost surgical precision and deliberation. Whoever killed Reverend Hale, she thought, understood both scripture and anatomy, and wanted their message read like a sermon aloud.
created_at"2026-02-16T13:32:58.192653+00:00" 2/16/2026, 1:32:58 PM
model"openai/gpt-5.1-20251113"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4633
moderation_latency(null)
generation_time24907
tokens_prompt46
tokens_completion997
native_tokens_prompt41
native_tokens_completion1575
native_tokens_completion_images0
native_tokens_reasoning1290
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"
usage0.01580125
router(null)
provider_responses
0
id"resp_0871de39b3db2e9d0169931c7088708193aeca32311e48ad4d"
status200
is_byokfalse
latency162
endpoint_id"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.1-20251113"
api_type"completions"
id"gen-1771248752-lGtQMjcG10SJjbmUNgtb"
upstream_id"resp_0871de39b3db2e9d0169931c7088708193aeca32311e48ad4d"
total_cost0.01580125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920