Run: 2026-02-16-01KHKB1WNGCGD1024GQD3D9SYP

Run Details

Duration:
19.0s
Cost:
$0.012056
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain stitched the cobblestones as midnight swallowed Harrowgate's narrow lanes. Detective Mara Vale arrived, coat dripping, eyes sharp, silent tonight. A lantern swung outside Bellamy Manor, casting nervous shadows inward. The butler waited at the door, hands trembling slightly still. Inside, guests whispered around champagne, avoiding the upstairs corridor entirely. Somewhere above, a music box played, then abruptly stopped dead. Mara climbed slowly, counting steps, listening for breath or lies. At the landing, crimson seeped beneath the study's locked door. She knelt, smelled iron, and heard someone weeping behind curtains. When the key turned, Lord Bellamy lay smiling, throat opened. On his desk, a note read: 'Trust no one here'. Mara pocketed it, knowing the killer watched from darkness nearby.
created_at"2026-02-16T13:43:38.13057+00:00" 2/16/2026, 1:43:38 PM
model"openai/gpt-5.2-20251211"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6000
moderation_latency(null)
generation_time17678
tokens_prompt46
tokens_completion595
native_tokens_prompt41
native_tokens_completion856
native_tokens_completion_images0
native_tokens_reasoning670
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"
usage0.01205575
router(null)
provider_responses
0
id"resp_07286178f1a358950169931ef7a6c88196a91ae0dee89806b6"
status200
is_byokfalse
latency209
endpoint_id"f00142c2-6a93-49ce-9e36-5593b904ce3b"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.2-20251211"
api_type"completions"
id"gen-1771249399-JBWlvQNi1hsaxTpvOaSC"
upstream_id"resp_07286178f1a358950169931ef7a6c88196a91ae0dee89806b6"
total_cost0.01205575
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110