Run: 2026-02-16-01KHKB2CT22VG9A3M36RQVYDGE

Run Details

Duration:
19.6s
Cost:
$0.015220
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 the harbor streets, and Inspector Mara Venn followed a lantern glow toward the silent Seaward Hotel entrance alone. Inside, the lobby clock ticked too loudly, while guests whispered about missing silver and the locked upstairs suite tonight again. A bellhop led her past damp umbrellas to room twelve, where perfume lingered over spilled brandy on carpet nearby still. The maid stood trembling beside the door, claiming she heard a choked laugh, then nothing for minutes at first afterward. Mara unlatched the brass handle, and cold air slipped out, carrying smoke, seawater, and something metallic beneath the floorboards too. On the bed lay Lionel Crass, a banker, eyes open, throat bruised, hands folded as if praying for mercy quietly. The window was bolted, the key remained in the corridor, and fresh footprints ended at the wardrobe beside his coat. Mara noted the wardrobe mirror smeared with ash, and a torn telegram hidden under the victim's watch marked MIDNIGHT ONLY.
created_at"2026-02-16T13:43:54.944999+00:00" 2/16/2026, 1:43:54 PM
model"openai/gpt-5.2-20251211"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5057
moderation_latency(null)
generation_time19227
tokens_prompt46
tokens_completion752
native_tokens_prompt41
native_tokens_completion1082
native_tokens_completion_images0
native_tokens_reasoning864
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"
usage0.01521975
router(null)
provider_responses
0
id"resp_0affea969aeb3e7d0169931f0722148190af5bad1e9ddacb78"
status200
is_byokfalse
latency195
endpoint_id"f00142c2-6a93-49ce-9e36-5593b904ce3b"
provider_name"OpenAI"
model_permaslug"openai/gpt-5.2-20251211"
api_type"completions"
id"gen-1771249415-6mPBpx2IWR6aF7k4NUxi"
upstream_id"resp_0affea969aeb3e7d0169931f0722148190af5bad1e9ddacb78"
total_cost0.01521975
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
220
320
420
520
620
720