Run: 2026-02-16-01KHKA94RXVS6F1SWJ6VQQQFDF

Run Details

Duration:
15.6s
Cost:
$0.000642
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 morning fog curled through alleys like patient suspects awakening. A clock chimed, and the harbor breathed salt and secrets. Detective Mara slipped inside the library where shadows gathered quietly. A body lay outlined in lamplight, peaceful as winter hymn. The crime scene smelled faintly of lilac and old smoke. Footsteps echoed, but no one answered the question haunting her. Her notebook waited, margins inked with theories nobody would admit. Outside, gulls cried verdicts while rain scribbled rumors along windows.
created_at"2026-02-16T13:30:03.668288+00:00" 2/16/2026, 1:30:03 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency7701
moderation_latency(null)
generation_time15458
tokens_prompt46
tokens_completion523
native_tokens_prompt41
native_tokens_completion1600
native_tokens_completion_images0
native_tokens_reasoning1472
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"
usage0.00064205
router(null)
provider_responses
0
id"resp_0d77a33cadf3cab40169931bcbafb88193a1b6ccf6d5b9d933"
status200
is_byokfalse
latency190
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771248587-K0YkUAX8r0LSFR3mFPrI"
upstream_id"resp_0d77a33cadf3cab40169931bcbafb88193a1b6ccf6d5b9d933"
total_cost0.00064205
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710