Run: 2026-02-16-01KHK9JHT6AFM6HTQGDDFFWNWT

Run Details

Duration:
39.7s
Cost:
$0.024201
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 needled the sleeping town. Streetlights hummed like patient witnesses. Somewhere, a clock refused silence. Detective Mara Bell arrived early. The call had sounded routine. Routine never stayed routine long. Blue tape fluttered like ribbon. Neighbors watched through twitching curtains. The bungalow door hung ajar. Wet footprints marred the threshold. Inside, the air tasted coppery. A metronome ticked, relentless, solitary. Music sheets carpeted the piano. On middle C, blood pooled. The body faced the wall. Eyes open, mouth rehearsing disbelief. A violin string cinched wrist. Another bridled the swollen throat. No forced entry, no struggle. Rain drowned any departing prints. Mara noted the mantel clock. Its hands pointed accusingly backward. On the sill, one tulip. It bowed like guilty testimony. A note waited beneath saucer. Blue ink bled three words. Play me, then please run. She heard distant laughter fracture. The clock skipped a beat. Somewhere nearby, a violin tuned. Rain kept time with dread. Mara whispered to the metronome. Tell me who conducts this. It answered with perfect tempo. Outside, sirens braided the rain. Inside, silence tightened its bow.
created_at"2026-02-16T13:18:07.51505+00:00" 2/16/2026, 1:18:07 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4331
moderation_latency(null)
generation_time39573
tokens_prompt46
tokens_completion1034
native_tokens_prompt41
native_tokens_completion2415
native_tokens_completion_images0
native_tokens_reasoning2112
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"
usage0.02420125
router(null)
provider_responses
0
id"resp_0ad6072a1a33802901699318e751e88197b6aa80a5a89d615c"
status200
is_byokfalse
latency199
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771247847-KCJaJ8Xxm2gJnBUxVy1H"
upstream_id"resp_0ad6072a1a33802901699318e751e88197b6aa80a5a89d615c"
total_cost0.02420125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences36
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