Run: 2026-02-16-01KHKA83WVQ7DATZKAK1S8KE1W

Run Details

Duration:
1m 12s
Cost:
$0.048241
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 stitched the harbor's silence. Fog draped windows in gauze. The clock's hands refused morning. Detective Mara Finch disliked waiting. Coffee cooled beside untouched pastry. The call finally came through. Wharfmaster's voice sounded rehearsed, thin. "It's bad, you'd better hurry." She grabbed gloves and walked. Sirens braided streets with impatience. Dock fourteen waited like gallows. The body rocked with tide. Nets embraced him like penance. His suit glimmered with oil. Eyes stared, rinsed of color. A ring clung to finger. It bore a chipped lighthouse. Mara knelt, blessing the boards. She sniffed kelp and diesel. Another smell threaded between them. Copper, cloves, and something floral. Reporters gathered, gulls as chorus. The wharfmaster wouldn't meet eyes. "Name?" she asked, pen hovering. "Harlan Dykes, shipping union treasurer." A gull dropped sudden quiet. Mara noted bruises like constellations. Rope burns cuffed his wrists. Wallet dry within soggy jacket. Pockets empty, seams recently tampered. She tasted rain and questions. Patrolmen whispered about unfortunate accidents. The sea answered with thudding. She lifted his lapel gently. A smear glittered like lipstick. Not lipstick, boat flare residue. Someone signaled, not for help. "Who found him?" Mara asked. "A kid from bait shop." The kid shook like canvas. He pointed at mooring cleats. One rope was strangely pristine. Storms scuff every rope here. Someone replaced this one recently. Engines coughed on distant trawlers. A camera clicked like metronomes. Mara pocketed the chipped ring. Evidence bag rustled like surf. "You'll inform his family now?" The wharfmaster winced, then stalled. "They already know he's missing." Missing yesterday, not this morning. He lied about first sighting. Gulls tattled with greedy laughter. Mara straightened, rain finally easing. Harbor bells tolled their patience. Somewhere, a lighthouse blinked twice. Twice meant storms or warnings. She read it as promise. Someone planned this high tide. Evidence would float from hiding. She watched eddies like calendars. The sea kept strict appointments. So did careful, patient killers.
created_at"2026-02-16T13:30:25.942437+00:00" 2/16/2026, 1:30:25 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency28169
moderation_latency(null)
generation_time71528
tokens_prompt46
tokens_completion1481
native_tokens_prompt41
native_tokens_completion4819
native_tokens_completion_images0
native_tokens_reasoning4288
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"
usage0.04824125
router(null)
provider_responses
0
id"resp_0e48824ef347fb880169931ba9f71881949e5b59c0b7096565"
status200
is_byokfalse
latency149
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771248553-yJRtdsffULkENNWGALvG"
upstream_id"resp_0e48824ef347fb880169931ba9f71881949e5b59c0b7096565"
total_cost0.04824125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences64
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