Run: 2026-02-16-01KHK97K58D0EW4XX7AZTW3MDF

Run Details

Duration:
26.9s
Cost:
$0.017751
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 hammered the station roof as Detective Mara Quinn waited. The last train had departed, leaving platforms slick and deserted. Somewhere downtrack, a maintenance signal blinked like a distant heartbeat. Mara checked her watch again, though time was irrelevant tonight. The anonymous message still glowed on her phone's cracked screen. COME ALONE TO PLATFORM THREE, MIDNIGHT, OR ANOTHER COMMUTER DISAPPEARS. Wind funneled through the underpass, carrying fried onions and smoke. A fluorescent light flickered overhead, buzzing like a wasp nest. Only one other person remained, slumped on a metal bench. He wore a janitor's uniform, cap shadowing his expressionless face. Mara catalogued exits, cameras, mirrors of rain on glass doors. Her partner should have been here, cracking jokes, diffusing nerves. Instead, her messages remained unread, little gray checkmarks accusing her. The station clock clicked over to midnight with mechanical indifference. From the tunnel, a train's horn wailed, wrong and distant. Yet the timetable showed nothing scheduled, no late freight tonight. The janitor stood, stretching slowly, eyes never leaving Mara's silhouette. His mop bucket rolled, wheels rattling like teeth in darkness. You came alone, Detective, he said, voice shredded by cigarettes. Mara's hand brushed her holster, fingers finding only empty leather. Somebody laughed then, hidden among columns, echoing with cruel amusement. The sound bounced wildly, refusing to reveal its true origin. Welcome to the end of the line, Detective Quinn tonight. Behind her, the last exit door clicked shut and locked.
created_at"2026-02-16T13:11:55.406903+00:00" 2/16/2026, 1:11:55 PM
model"openai/gpt-5.1-20251113"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4817
moderation_latency(null)
generation_time26639
tokens_prompt46
tokens_completion1215
native_tokens_prompt41
native_tokens_completion1770
native_tokens_completion_images0
native_tokens_reasoning1407
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"
usage0.01775125
router(null)
provider_responses
0
id"resp_0cab3a73fc4b235c01699317803d3c819580bbf4c5e960c4f4"
status200
is_byokfalse
latency161
endpoint_id"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.1-20251113"
api_type"completions"
id"gen-1771247488-LYWT1HA7eyTpXPfPmtfd"
upstream_id"resp_0cab3a73fc4b235c01699317803d3c819580bbf4c5e960c4f4"
total_cost0.01775125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences24
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710
1810
1910
2010
2110
2210
2310