Run: 2026-02-16-01KHK9YQGNDZQCW2TYXWFSRFXF

Run Details

Duration:
36.2s
Cost:
$0.001206
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
The harbor fog clung to cobblestones as lanterns trembled tonight. A bell tolled somewhere unseen, calling secrets from sleeping alleys. In the pale doorway, violin case rested, breathless and mute. A newspaper flapped on a railing, announcing yesterday's impossible resolve. Somebody whispered names, but none claimed guilt beneath the clock. Light spilled from a window, painting suspects with amber hesitation. A clock in the hall sighed, marking unwelcome, inevitable arrival. The victim lay not far, elegant, pale, and judging quietly. Someone had arranged lilies around the body like quiet witnesses. I am Detective Lark, and this harbor keeps watchful secrets. Tonight, every shadow will confess before the morning's iron rules. Rain began softly, tapping stories against glass like anxious fingers. From the balcony, a silhouette watched, calculating whom night protected. Every breath tasted of rain, tobacco, and unspoken accusations tonight. This is how murder begins: with fog, doors, and names. The scene breathes, inviting questions, promising that answers will sting. And somewhere, someone rehearses alibis while the harbor holds breath.
created_at"2026-02-16T13:24:42.963383+00:00" 2/16/2026, 1:24:42 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3989
moderation_latency(null)
generation_time35953
tokens_prompt46
tokens_completion1150
native_tokens_prompt41
native_tokens_completion3011
native_tokens_completion_images0
native_tokens_reasoning2752
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"
usage0.00120645
router(null)
provider_responses
0
id"resp_02a7f210156915480169931a765fc48190bf6936512486d3a6"
status200
is_byokfalse
latency107
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771248246-0o08xiAO2XlFOsg2nD7z"
upstream_id"resp_02a7f210156915480169931a765fc48190bf6936512486d3a6"
total_cost0.00120645
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences17
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1610