Run: 2026-02-16-01KHKATBPG635FQD91AK71EME3

Run Details

Duration:
22.2s
Cost:
$0.000716
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the narrow streets as the city woke to whispers about a missing heiress and a buried secret tonight. In the marble lobby of the antique hotel, Detective Mora scanned footprints of fear and the lingering aroma of danger. A bellboy whispered about a victim found at dawn, velvet drapes concealing betrayal, and a clock stubbornly stopping in shadows. Outside, rain slicked the marble steps, reflecting neon advertisements while rumors ricocheted between scarfed mouths and cigarette ashes at midnight. The crime scene lay upstairs, a drawing room arranged as if guests expected to depart, not endure a sudden calamity. Mora listened to a clock, to rain, to sirens distant enough to feel deliberate, and wrote names in anticipation tonight.
created_at"2026-02-16T13:39:38.562752+00:00" 2/16/2026, 1:39:38 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2497
moderation_latency(null)
generation_time21770
tokens_prompt46
tokens_completion960
native_tokens_prompt41
native_tokens_completion1784
native_tokens_completion_images0
native_tokens_reasoning1600
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"
usage0.00071565
router(null)
provider_responses
0
id"resp_04a842453b4af7330169931dffc58c8196829933d86d3a6355"
status200
is_byokfalse
latency110
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771249151-B3Yx15KIEO3Q29AEI1uc"
upstream_id"resp_04a842453b4af7330169931dffc58c8196829933d86d3a6355"
total_cost0.00071565
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
220
320
420
520