Run: 2026-02-16-01KHK9N5XT28NVER0SNWQAZYKC

Run Details

Duration:
1m 14s
Cost:
$0.038311
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 black. Sirens tangled with gulls' cries. Detective Mara Lake arrived late. Her umbrella bled thin stripes. The pier lamps flickered nervous. Officers guarded a cordoned rectangle. Wet chalk outlined unseen absence. A fisherman watched, knuckles whitening. Mara addressed the shivering fisherman. He nodded, eyes on water. His net snagged something earlier. Thought it debris, not her. Mara crouched beside the sheets. The body waited, quiet accusation. Lotus tattoo circled one ankle. A ring gleamed, cracked glass. Lipstick smeared like sunset rust. Tide whispered private, sibilant secrets. She tagged the scattered footprints. Two sizes, hurried, overlapping directions. Camera flashed; gulls recoiled skyward. The harbormaster approached, smelling diesel. Storm's rising, he warned flatly. Mara studied the broken railing. Fresh splinters pointed seaward, accusing. Boat lights bobbed like lanterns. Somewhere, a dog barked twice. Radio crackled names and addresses. Identify her, someone asked softly. Mara lifted the chipped necklace. Letters hid beneath dark grime. She rubbed, revealing barely initials. L and V, entwined carelessly. The fisherman crossed himself quickly. You knew her, Mara pressed. He swallowed, then looked away. Worked nights at Vesper Lounge. Sang Thursdays, drank after closing. Fought last week with manager. Over tips, and something else. Waves thudded against barnacled pilings. Mara pocketed the fragile necklace. Rain thickened, cloaking every breath. Somewhere, footsteps retreated, then stopped.
created_at"2026-02-16T13:20:08.155099+00:00" 2/16/2026, 1:20:08 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3657
moderation_latency(null)
generation_time73537
tokens_prompt46
tokens_completion1650
native_tokens_prompt41
native_tokens_completion3826
native_tokens_completion_images0
native_tokens_reasoning3456
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"
usage0.03831125
router(null)
provider_responses
0
id"resp_06e7f4f3d0d24cae016993193d71708197815a7aa57c0b9af8"
status200
is_byokfalse
latency123
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771247933-h67ytnfMLkgvhaB70iG6"
upstream_id"resp_06e7f4f3d0d24cae016993193d71708197815a7aa57c0b9af8"
total_cost0.03831125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences44
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