Run: 2026-02-16-01KHKA14K5S42JAJ0H79X9MH2P

Run Details

Duration:
33.6s
Cost:
$0.005532
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
Midnight rain polished the cobbles; streetlamps pooled yellow sorrow, while Officer Hale discovered a body behind the bakery shutters alone. Her coat clung to ruined lace; a single glove lay twisted, fingers pointing uselessly toward the alley's yawning dark mouth. Shoppers' shutters flicked like bees as the rumor raced ahead, reckless and gleaming, gathering people in lantern-lit knots by curiosity. The victim's face was blank, as if sleep had stolen the expression that once mapped a thousand smiles and regrets. Detective Marlow knelt, cigarette trembling in hand, eyes narrowing against rain and something sharper: suspicion's old, familiar ache and memory. He traced a faint shoeprint with gloved finger, imagining the last steps, the hurry, and the deliberate pause before leaving.
created_at"2026-02-16T13:25:59.453755+00:00" 2/16/2026, 1:25:59 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2127
moderation_latency(null)
generation_time33419
tokens_prompt46
tokens_completion1048
native_tokens_prompt41
native_tokens_completion2761
native_tokens_completion_images0
native_tokens_reasoning2560
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"
usage0.00553225
router(null)
provider_responses
0
id"resp_075a531b1f3063480169931ac54bf08190a5c26234f230d0f5"
status200
is_byokfalse
latency153
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771248325-gbs7e0M9Yaqvb75wnBzz"
upstream_id"resp_075a531b1f3063480169931ac54bf08190a5c26234f230d0f5"
total_cost0.00553225
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
93.4422% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
221
320
420
520