Run: 2026-02-16-01KHKART513Y8PSBAD3K56R9MW

Run Details

Duration:
17.7s
Cost:
$0.013651
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the abandoned railway station as Detective Mara Ivers stepped from her car, collar up against November wind tonight. The call had promised routine trespassing, yet the waiting paramedics would not meet her eyes under flickering lights this evening. Inside the ticket hall, echoes of dripping water mingled with distant thunder, swallowing her footsteps like something listening in darkness. On the cracked tiles lay a man in evening dress, throat opened carefully, blood arranged in deliberate, almost artistic circles. His left hand pointed toward the shuttered ticket window, where someone had written three letters in blood, trembling but purposeful. Mara noted the cooled skin, the missing wallet, the unscuffed shoes, building a timeline that refused to make sense tonight. Outside, the storm strengthened, rattling loose panes and drowning traffic, isolating the station like an island nobody remembered owning anymore. She crouched beside the body and smelled not only iron and damp wool, but faintly, clinging insistently, expensive gardenias nearby. That fragrance dragged memory from childhood funerals, when her grandmother whispered that murderers always choose perfumes they secretly despised wearing. Before Mara could question the paramedics, the station clocks simultaneously chimed midnight, though her watch insisted it was still eleven.
created_at"2026-02-16T13:38:39.442702+00:00" 2/16/2026, 1:38:39 PM
model"openai/gpt-5.1-20251113"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3832
moderation_latency(null)
generation_time17069
tokens_prompt46
tokens_completion1005
native_tokens_prompt41
native_tokens_completion1360
native_tokens_completion_images0
native_tokens_reasoning1093
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"
usage0.01365125
router(null)
provider_responses
0
id"resp_071eda84a7f46f4f0169931dcd085081949fb36c80fa502e7a"
status200
is_byokfalse
latency167
endpoint_id"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.1-20251113"
api_type"completions"
id"gen-1771249100-jtcdT3yiHugMS0oMkk6e"
upstream_id"resp_071eda84a7f46f4f0169931dcd085081949fb36c80fa502e7a"
total_cost0.01365125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920