Run: 2026-02-16-01KHKAF7BVEWWKQEGHY8A7WKR8

Run Details

Duration:
36.5s
Cost:
$0.032921
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 hammered the rusted trainyard. Floodlights smeared halos across puddles. Detective Mara Kline pulled in. Sirens whimpered, finally fading behind. Uniforms clustered near warehouse nine. Yellow tape fluttered like flags. The air reeked of brine. Harbor fog draped everything inwards. Mara tasted diesel on breath. Her shoes soaked through instantly. Lieutenant Briggs stomped toward her. He looked older in sodium. Eyes red, jaw wired tight. He muttered, 'You picked nights.' Mara shrugged rain off collar. She said, 'What have we?' Briggs pointed at the doorway. Guard found him during rounds. Wouldn't answer, started screaming instead. So yeah, fun evening patrol. They ducked beneath sagging tape. Concrete steps led into black. Inside, generators hummed like insects. Water dripped somewhere, steady metronome. The warehouse tasted of pennies. Mara followed the copper smell. It thickened near loading bay. Techs crouched, photographing every shadow. A body lay between crates. Skin waxy, suit darkly soaking. One hand reached toward rafters. Eyes stared beyond corrugated ceiling. Throat opened into a grin. Blood crawled along warped grooves. Mara's pen clicked by reflex. She knelt, ignoring damp knees. Briggs hovered, cracking knuckles softly. He said, 'Name's Victor Harlow.' Dock manager, night shift supervisor. Everyone around here owes him. Mara inspected the ruined throat. Cuts clean, almost loving work. No hesitation marks, no struggle. She glanced at his shoes. Polished leather, barely dotted crimson. He never saw this coming. Briggs asked, 'Robbery gone wrong?' Wallet's here, watch still ticking. Chain of gold, untouched, gleaming. Mara scanned the distant corners. A camera blinked above office. Red light dead, lens crusted. She sniffed, catching faint perfume. Wrong note in this place. Metal, salt, oil, then jasmine. Briggs squinted toward the catwalks. Footprints up there, barely visible. Fresh, rain hasn't washed them. Mara rose, joints complaining quietly. Get them dusted, she ordered. And find me the guard. Nobody screams like that innocently. Outside, rain swallowed distant sirens. The harbor kept its silence. Inside, the questions started multiplying.
created_at"2026-02-16T13:33:44.579008+00:00" 2/16/2026, 1:33:44 PM
model"openai/gpt-5.1-20251113"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4087
moderation_latency(null)
generation_time35940
tokens_prompt46
tokens_completion1448
native_tokens_prompt41
native_tokens_completion3287
native_tokens_completion_images0
native_tokens_reasoning2725
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"
usage0.03292125
router(null)
provider_responses
0
id"resp_0910e3c3253ca86f0169931c92e4e88190a6893e4092c3a4e8"
status200
is_byokfalse
latency152
endpoint_id"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.1-20251113"
api_type"completions"
id"gen-1771248786-a2ki0lZqlU6rvFKLER8F"
upstream_id"resp_0910e3c3253ca86f0169931c92e4e88190a6893e4092c3a4e8"
total_cost0.03292125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences65
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
275
285
295
305
315
325
335
345
355
365
375
385
395
405
415
425
435
445
455
465
475
485
495
505
515
525
535
545
555
565
575
585
595
605
615
625
635
645