Run: 2026-02-16-01KHK9GQVVMRXSAFDE74ZFGNT4

Run Details

Duration:
25.7s
Cost:
$0.000876
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
Fog hung over the harbor as the clock struck midnight. The lantern trembled, casting a pale halo on rain-slick cobbles. A body lay beneath the pier, eyes wide with fear. The detective arrived unseen, cloak brushing cobbles, notebook ready tonight. Neighbors whispered rumors, but silence clung stubbornly to every doorway. The tide hissed secrets, washing footprints toward nowhere, drawing questions. A gull cried overhead, interrupted only by distant thunderclaps nearby. The victim's ring gleamed, bearing initials nobody could recognize ever. Cold rain tapped a rhythm, matching suspects' nervous, deliberate shifting. The case would begin when truth intruded upon comfortable lies.
created_at"2026-02-16T13:16:53.998637+00:00" 2/16/2026, 1:16:53 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1765
moderation_latency(null)
generation_time25469
tokens_prompt46
tokens_completion934
native_tokens_prompt41
native_tokens_completion2185
native_tokens_completion_images0
native_tokens_reasoning1984
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"
usage0.00087605
router(null)
provider_responses
0
id"resp_0b0d7b3c056c491601699318abf9848195a7b8064761d21cb2"
status200
is_byokfalse
latency129
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771247787-9Xilu8LFTuVmCxo3pZYB"
upstream_id"resp_0b0d7b3c056c491601699318abf9848195a7b8064761d21cb2"
total_cost0.00087605
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
97.4082% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
111
210
310
410
510
610
710
810
910