Run: 2026-02-16-01KHKA736BPE0CK091HXRRTDSK

Run Details

Duration:
21.7s
Cost:
$0.014576
Provider:
OpenAI

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain stitched silver threads across Marlowe Manor as Detective Elara Voss arrived, summoned by a whispering midnight telephone call again. Inside the chandelier swayed gently and guests stood silent watching the grandfather clock bleed seconds into shadows beneath their shoes. At the library door a maid pointed tremblingly toward a mahogany desk where Lord Harrow lay facedown without speaking tonight. A teacup toppled near his hand spilling black leaves while a single glove rested on the carpet beside the hearth. Elara knelt noting no blood only a faint almond scent and a smear of violet wax on his cuff neatly. Captain Sorrell the host insisted everyone remained yet every alibi sounded rehearsed like lines learned in panic for her benefit. When the storm cut the power Elara heard someone whisper her name and the murderer moved somewhere nearby in darkness.
created_at"2026-02-16T13:29:02.378526+00:00" 2/16/2026, 1:29:02 PM
model"openai/gpt-5.2-20251211"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5241
moderation_latency(null)
generation_time21533
tokens_prompt46
tokens_completion769
native_tokens_prompt41
native_tokens_completion1036
native_tokens_completion_images0
native_tokens_reasoning856
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"
usage0.01457575
router(null)
provider_responses
0
id"resp_0d5a49a0f550af5f0169931b88795c8197b8e4a7b88e5e8625"
status200
is_byokfalse
latency157
endpoint_id"f00142c2-6a93-49ce-9e36-5593b904ce3b"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.2-20251211"
api_type"completions"
id"gen-1771248520-Byi7hK4URzl5BDiCd6Zb"
upstream_id"resp_0d5a49a0f550af5f0169931b88795c8197b8e4a7b88e5e8625"
total_cost0.01457575
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
320
420
520
620