Run: 2026-02-16-01KHK9W84AE90N07S8TN4WFASA

Run Details

Duration:
38.0s
Cost:
$0.006202
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
The rain had hollowed the cobblestones and the gaslight shivered as the gardener found Mrs. Penhaligon's body near the gate. By dawn, a ragged crowd gathered like crows around the iron railings, whispering theories and holding umbrellas and muttered accusations. Inspector Grey arrived with mud on his shoes and a notebook already open to names he would cross later silently. Her gloves were folded on the grass as if waiting for hands that would never return from market or errands. A smear of perfume clung to the collar, lemon and jasmine, as if someone had lingered and lied quite deliberately. Inside the drawing room a clock continued to tick, indifferent, and the silver tea set trembled with fingerprints that morning. Grey's eyes found a scrap of paper pinned beneath a book, a child's drawing twisted around the initials and date. Outside, someone laughed sharply and somewhere a carriage rattled; tonight secrets would have sharp teeth and blood if truth came.
created_at"2026-02-16T13:23:23.304671+00:00" 2/16/2026, 1:23:23 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2049
moderation_latency(null)
generation_time37612
tokens_prompt46
tokens_completion1124
native_tokens_prompt41
native_tokens_completion3096
native_tokens_completion_images0
native_tokens_reasoning2880
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"
usage0.00620225
router(null)
provider_responses
0
id"resp_0ced68225fdc5f2f0169931a251c648195b3a654abc69245b7"
status200
is_byokfalse
latency150
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771248165-i2uxu1hITBjQmLLYMzKe"
upstream_id"resp_0ced68225fdc5f2f0169931a251c648195b3a654abc69245b7"
total_cost0.00620225
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
220
320
420
520
620
720