Run: 2026-02-16-01KHKB2TX9PMBYBRMWG1XK46VZ

Run Details

Duration:
38.0s
Cost:
$0.004666
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
Night fog swallowed the manor's stone steps and iron gate. A single lamp guttered, casting long fingers across the hall. Detective Mallory stepped inside, shoes whispering on polished oak panels. Blood had dried like a dark roadmap toward the fireplace. A shattered vase marked the beginning of the night's violence. Portraits on the staircase watched with varnished indifference and accusation. Someone had washed the kitchen floor but missed one smear. The victim's watch lay stopped at exactly two minutes past. Neighbors whispered behind curtains; secrets pooled like water in drains. Mallory checked pockets and found lint, ticket, and crumpled receipt. Outside, rain began tapping like impatient fingers on the glass. A neighbor's dog howled once, then fell silent, listening intently. There was mud tracked across the hallway, small and erratic. In the study, an open ledger listed names and numbers. Mallory noticed a page turned down beside Mrs. Pembroke's signature.
created_at"2026-02-16T13:44:27.928094+00:00" 2/16/2026, 1:44:27 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency22330
moderation_latency(null)
generation_time37369
tokens_prompt46
tokens_completion899
native_tokens_prompt41
native_tokens_completion2328
native_tokens_completion_images0
native_tokens_reasoning2112
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"
usage0.00466625
router(null)
provider_responses
0
id"resp_09deaf81f4a3e54c0169931f1583248195a59874e9a96df607"
status200
is_byokfalse
latency192
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771249429-Cscp3rmSyXyZV8uLknBc"
upstream_id"resp_09deaf81f4a3e54c0169931f1583248195a59874e9a96df607"
total_cost0.00466625
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410