Run: 2026-02-16-01KHKAYAZEMBXFYN5QKW9KHMHT

Run Details

Duration:
25.2s
Cost:
$0.004548
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 crawled through the avenue, swallowing lamplight and whispered steps. A silhouette stood beneath the museum's rotten clock, hands trembling. Blood smeared the marble vestibule, dark flowers on cold floor. Detectives arrived with umbrellas, collars up, faces unreadable and alert. Neighbors watched from curtained windows, gossiping like nervous birds outside. A single shoe lay near the victim, scuffed and empty. Rain tapped secrets against the ancient foyer's stained-glass windows slowly. The coroner arrived, pocket watch clicking, eyes cataloguing small truths. A note tucked beneath a candlestick read only one word. The word was betrayed, ink blotched, trembling as if confessing. Footsteps retreated into rain; someone laughed, embarrassingly human and hollow. The mayor's wife later denied involvement with steady practiced grief. Everyone carried secrets like stones, ready to sink the innocent.
created_at"2026-02-16T13:41:47.983632+00:00" 2/16/2026, 1:41:47 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8654
moderation_latency(null)
generation_time24981
tokens_prompt46
tokens_completion925
native_tokens_prompt41
native_tokens_completion2269
native_tokens_completion_images0
native_tokens_reasoning2048
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"
usage0.00454825
router(null)
provider_responses
0
id"resp_0de2c53bc075b8530169931e821ac081949239d05f1a20478d"
status200
is_byokfalse
latency125
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771249282-aECRNEyzdylyt7aWRFpF"
upstream_id"resp_0de2c53bc075b8530169931e821ac081949239d05f1a20478d"
total_cost0.00454825
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
98.0063% Matches word count n/a
neededCleanfalse
sentences13
wordCounts
010
110
210
310
410
510
611
710
810
910
1010
1110
1210