Run: 2026-02-16-01KHKABNRGV964BXG5SE6NBK4K

Run Details

Duration:
44.5s
Cost:
$0.031141
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 stitched the harbor black. Sirens braided through distant alleys. I reached Calder House late. The butler's hands trembled slightly. He whispered the master's waiting. Footprints jeweled the entry rug. Wet wool perfumed the foyer. Lightning framed portraits like jurors. Calder lay beside the piano. His tuxedo hugged cooling silence. Blood threaded his monogrammed cuff. A glass rested, untouched, near. I noted mismatched piano keys. One ivory gleamed too new. The window latch wore scratches. Outside, tires hissed like snakes. Guests gathered, carefully measuring fear. The widow arrived without tears. Her pearls clicked like clocks. Someone finally asked about motive. I answered, motive usually laughs. But evidence never laughs twice. We started with the room. Rain darkened every questioning pause. The clocks kept uncertain time. Somebody kept time for him. And somebody killed him slowly. The piano waited for answers. Its lid mirrored every suspect. In reflection, someone avoided looking. I filed that small silence. Outside, the sirens braided back. Inside, the butler locked doors. We were finally all present. The storm took attendance again. I lifted the suspicious key. It matched the scratched latch. Our killer preferred quiet openings. So I opened every mouth. The widow blinked, pearls ticking.
created_at"2026-02-16T13:31:55.557151+00:00" 2/16/2026, 1:31:55 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8217
moderation_latency(null)
generation_time44418
tokens_prompt46
tokens_completion1224
native_tokens_prompt41
native_tokens_completion3109
native_tokens_completion_images0
native_tokens_reasoning2816
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"
usage0.03114125
router(null)
provider_responses
0
id"resp_0ef60fd7c2c58d0d0169931c1e96b481959429f01c56eba867"
status200
is_byokfalse
latency202
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771248670-eVapBBj60ek11hmCA5Vc"
upstream_id"resp_0ef60fd7c2c58d0d0169931c1e96b481959429f01c56eba867"
total_cost0.03114125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences40
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
325
335
345
355
365
375
385
395