Run: 2026-02-16-01KHKAV28EBGPWTVVYZV1XC9DD

Run Details

Duration:
45.0s
Cost:
$0.027851
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain stitched the harbor with needles as sirens shredded midnight. The lighthouse blinked once, then watched everything without blinking again. I arrived late, pockets damp, notebook hungry for answers tonight. Police tape fluttered like jaundiced ribbons across the boarded storefront. Inside, a bell chimed after footsteps that should've been gone. The body lounged behind the counter, sprawled like careless merchandise. Blood threaded between tiles, finding drains with troubling determination below. A brass clock had stopped at twelve, hands locked together. Next to it, a postcard whispered: Wish you were elsewhere. The shopkeeper's eyes stared ceilingward, reflecting flickers from patrol cars. No shattered window, no forced door, only silence behaving politely. Yet perfume drifted almond-sweet, a warning dressed like dessert tonight. Neighbors clustered outside, their umbrellas grazing like uncertain sea creatures. Someone whispered arsenic, and everyone immediately stopped whispering altogether there. I noted smudged ledgers, empty tracks, and missing frames everywhere. The register mouthed zeros, as though yesterday had never paid. On the threshold lay salt, arranged carefully into curling symbols. I photographed everything, while the harbor kept wettening the world. Then a gull screamed, and somewhere inside, a latch answered. Whoever left remained here, hiding behind certainty and careful timing. I closed my notebook, opened my eyes, and knocked politely. Murder, I thought, prefers company almost as much as shadows.
created_at"2026-02-16T13:40:20.492929+00:00" 2/16/2026, 1:40:20 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4227
moderation_latency(null)
generation_time44630
tokens_prompt46
tokens_completion1179
native_tokens_prompt41
native_tokens_completion2780
native_tokens_completion_images0
native_tokens_reasoning2432
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"
usage0.02785125
router(null)
provider_responses
0
id"resp_09144c77a091cddc0169931e16ecb48194a70ca3f1d27de548"
status200
is_byokfalse
latency203
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771249174-b09NBbyIKhRcXYObxMog"
upstream_id"resp_09144c77a091cddc0169931e16ecb48194a70ca3f1d27de548"
total_cost0.02785125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
98.8219% Matches word count n/a
neededCleanfalse
sentences22
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1111
1210
1310
1410
1510
1610
1710
1810
1910
2010
2110