Run: 2026-02-16-01KHKB441HDDP7QY1Q78DYJ3ZA

Run Details

Duration:
1m 5s
Cost:
$0.054451
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 quiet harbor. The lighthouse blinked, then failed. Detective Mara Hart stepped off. Her coat drank the storm. The manor loomed above breakers. Windows watched like narrowed eyes. Inside, a clock stopped abruptly. Voices hushed to frightened whispers. The butler met her breathless. "This way," he finally said. The study smelled of gunpowder. Books lay strewn like casualties. A cigar smoldered, unattended, accusing. Blood threaded the Persian rug. The banker rested, eyes open. His cufflinks glinted like bait. Window latches held, paint cracking. A single footprint faced outward. The safe hung slightly ajar. No cash, only legal documents. A letterhead named Archer Shipping. The widow clutched her pearls. Rainwater jeweled her shaking hands. Nightly, he locked everything tight. Mara noted trembling, not tears. The maid lingered too near. Her shoes tracked sandy grit. "Beach gate broken," she murmured. Lightning mapped the widow's face. The fireplace ash held crescents. Fingers searched for pressed switches. A panel clicked, then yielded. Behind, a narrow passage breathed. Somewhere, a phone kept ringing. A voice rasped, "Check wrists." The gunshot masked strangled struggle.
created_at"2026-02-16T13:45:37.166427+00:00" 2/16/2026, 1:45:37 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency7602
moderation_latency(null)
generation_time65185
tokens_prompt46
tokens_completion1202
native_tokens_prompt41
native_tokens_completion5440
native_tokens_completion_images0
native_tokens_reasoning5120
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"
usage0.05445125
router(null)
provider_responses
0
id"resp_06319c132bb289d00169931f3f9fb081939249d162c769cf37"
status200
is_byokfalse
latency322
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771249471-Fve7nokTkFY6309WD2Rw"
upstream_id"resp_06319c132bb289d00169931f3f9fb081939249d162c769cf37"
total_cost0.05445125
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