Run: 2026-02-16-01KHK96FDM5QNJZZQRRDWBG8YB

Run Details

Duration:
46.8s
Cost:
$0.021231
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain smeared the city lights. Detective Mara Quinn watched silently. Patrol cars jittered with reflections. The river carried oily secrets. Tonight, one surfaced without consent. They'd found him under Pierseventeen. Not floating; nailed beneath ladders. Mara ducked beneath the tape. Cold mist pearled on eyelashes. The uniformed sergeant looked shaken. He offered gloves, avoided conversation. Mara snapped them on carefully. The body's suit was expensive. Cufflinks glinted like tiny mirrors. His throat was neatly opened. No blood stained the boards. It had been raining hours. Everything should've washed red downstream. Instead, the planks remained clean. Someone killed him somewhere else. Then brought him here ceremoniously. Mara studied the careful nails. Four spikes, equidistant, stainless steel. A crude cross, disturbingly precise. The tide lapped, whispering measurements. Somewhere above, traffic hummed obliviously. Mara finally asked the sergeant. “Who discovered him, what time?” “Fisherman, around four this morning.” “Name's on the report, Lieutenant.” She crouched, searching his pockets. Wallet missing, phone still present. Locked screen displayed one notification. Unknown number: one unanswered call. Time matched the fisherman's story. Mara pocketed the cold device. “Get me prints from pilings.” “And pull cameras along Riverside.” Her partner, Jensen, arrived breathless. He studied the arranged corpse. “You sure this isn't theater?” Mara answered without looking up. “Theater sells tickets, not coffins.” Wind shifted, carrying something sour. Jensen sniffed, face tightening slightly. “Smell that? Industrial, maybe bleach.” Mara tasted the air thoughtfully. Somewhere pipes hissed beneath concrete. “Killer cleaned him,” she murmured. “Then chose this place deliberately.” Sirens wailed farther along riverfront. Another crime scene, or ambulance. Mara felt timing coil tight. One body rarely walked alone.
created_at"2026-02-16T13:11:38.797196+00:00" 2/16/2026, 1:11:38 PM
model"openai/gpt-5.1-20251113"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5009
moderation_latency(null)
generation_time46662
tokens_prompt46
tokens_completion1212
native_tokens_prompt41
native_tokens_completion2118
native_tokens_completion_images0
native_tokens_reasoning1650
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"
usage0.02123125
router(null)
provider_responses
0
id"resp_0e3ba7bb16006953016993175ba73081969d80ff6576bfbb42"
status200
is_byokfalse
latency203
endpoint_id"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.1-20251113"
api_type"completions"
id"gen-1771247451-AtYPionoM0tvoDwbn2cz"
upstream_id"resp_0e3ba7bb16006953016993175ba73081969d80ff6576bfbb42"
total_cost0.02123125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
91.8367% Matches word count n/a
neededCleanfalse
sentences49
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
225
235
245
255
265
2710
285
295
305
315
325
335
345
3510
365
375
3815
395
405
415
425
435
4410
455
465
475
485