Run: 2026-02-16-01KHK9SZ9MPTSWC0MT60YXDP9Q

Run Details

Duration:
1m 7s
Cost:
$0.032971
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the old manor. Lightning carved knives through windows. Guests gathered, trembling with champagne. Somebody screamed beyond the stairwell. A chandelier groaned, then settled. The grandfather clock confessed midnight. They found Charles Benton sprawled. His tuxedo drank creeping shadows. A ruby wound whispered upward. Blood threaded the silk carpet. Detective Mara Quinn arrived quickly. Her umbrella shook off thunder. She tasted metal in air. Servants circled like uneasy satellites. Each face practiced porcelain calm. Someone clutched a missing cufflink. A glass lay, lipstick bruised. The piano kept breathing wrong. Mara knelt beside the corpse. She checked pockets, found rain. Footprints bled toward the library. One print staggered, slightly smaller. Windows latched from the inside. No curtains fluttered their guilt. A telephone refused to dial. Lightning swallowed the feeble signal. The generator hiccuped, then died. Candles bloomed in watchful circles. Whispers collected behind Mara's shoulder. She asked, Who invited him? Mrs. Halpert lowered her gaze. She answered, The magistrate did. The magistrate stood ghost-pale, trembling. He muttered something about debts. Thunder agreed with dull applause. Mara lifted the bent cufflink. Its emblem showed a falcon. She matched it to blood. Mrs. Halpert's sleeve hid crimson. Everyone noticed, no one breathed. Outside, sirens dreamed of arrival. Inside, secrets buttoned their throats. Mara said, Lock these doors. No one leaves this house. The murderer is among us. Rain kept time for truth.
created_at"2026-02-16T13:22:38.039157+00:00" 2/16/2026, 1:22:38 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4235
moderation_latency(null)
generation_time65908
tokens_prompt46
tokens_completion1755
native_tokens_prompt41
native_tokens_completion3292
native_tokens_completion_images0
native_tokens_reasoning2944
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"
usage0.03297125
router(null)
provider_responses
0
id"resp_03952fb6676d2f9e01699319da8a308196b4629b07cf02c50b"
status200
is_byokfalse
latency185
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771248090-xt4RIdLeNqNOr1TK21ZX"
upstream_id"resp_03952fb6676d2f9e01699319da8a308196b4629b07cf02c50b"
total_cost0.03297125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
99.5191% Matches word count n/a
neededCleanfalse
sentences46
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
225
235
245
255
265
275
285
295
305
315
326
335
345
355
365
375
385
395
405
415
425
435
445
455