Run: 2026-02-16-01KHKB46HVEVA9N59DAYTEPRYB

Run Details

Duration:
35.2s
Cost:
$0.003594
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
Fog clung to the cobblestones as Mrs. Hawthorne discovered the body draped awkwardly beneath the gaslamp's jaundiced light at midnight. Neighbors gathered behind lace curtains, whispering theories while policemen measured footprints and circled the stain like vultures over prey silently. Detective Ames arrived smelling of pipe tobacco, trench coat soaked, eyes scanning faces for lies, alibis, and terrified confessions quickly. The victim's ledger lay open on the sidewalk, its ledger entries smeared, inked promises cancelled by a single invisible hand. A silver cufflink caught moonlight; police notes listed no witnesses, but someone had whispered names into the dead man's ear. Rain began soft as a curtain, erasing footprints, washing secrets down gutters where gossip waits, sharp and patient like knives.
created_at"2026-02-16T13:45:09.983182+00:00" 2/16/2026, 1:45:09 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency30420
moderation_latency(null)
generation_time35048
tokens_prompt46
tokens_completion204
native_tokens_prompt41
native_tokens_completion1792
native_tokens_completion_images0
native_tokens_reasoning1600
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"
usage0.00359425
router(null)
provider_responses
0
id"resp_011ef11e34f3819f0169931f423450819486d41e1ba7d6a8a7"
status200
is_byokfalse
latency145
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771249474-2z2JKWNsWkHAEiZo9skS"
upstream_id"resp_011ef11e34f3819f0169931f423450819486d41e1ba7d6a8a7"
total_cost0.00359425
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
220
320
420
520