Run: 2026-02-16-01KHK99D7J0W9VD6P4KC8634SC

Run Details

Duration:
17.4s
Cost:
$0.003706
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 hugged the harbor; lantern beams trembled against wet cobblestones. A fisherman found the body, face pale beneath cold kelp. Detective Marlow arrived, coat heavy with rain, boots muddy still. Crowds gathered at distance, umbrellas like small black flowers tonight. No blood stained the shore; only footprints and cigarette ashes. A scarf, striped and frayed, floated beside a driftwood cross. Neighbors whispered names: strangers, lovers, debts—everyone avoided admitting familiarity openly. Marlow knelt, probing the sand with fingers like careful pliers. His notebook remained dry; facts arrived slower than rumor today. Someone watched from the lee of the warehouse door silently.
created_at"2026-02-16T13:12:45.798953+00:00" 2/16/2026, 1:12:45 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2557
moderation_latency(null)
generation_time17297
tokens_prompt46
tokens_completion874
native_tokens_prompt41
native_tokens_completion1848
native_tokens_completion_images0
native_tokens_reasoning1664
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"
usage0.00370625
router(null)
provider_responses
0
id"resp_0223e7b26393194401699317bbb8e48190a672946eacbfb30f"
status200
is_byokfalse
latency362
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771247547-QUJ55WQOklirRnqtZXod"
upstream_id"resp_0223e7b26393194401699317bbb8e48190a672946eacbfb30f"
total_cost0.00370625
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
110
210
310
410
510
611
710
810
910