Run: 2026-02-16-01KHKA43AG1BS4F75Q9WBW94Y6

Run Details

Duration:
43.2s
Cost:
$0.025461
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 hammered the old cliffside manor as Detective Mara Quinn arrived, summoned by a midnight call and uneasy whispers alone. Inside, candles trembled like witnesses as thunder rolled, and the study door stood ajar, leaking darkness and salt into hallway. She stepped past portraits watching closely, their varnished eyes bright with accusation, and found the body near the extinguished hearthrug. The victim, publisher Lionel Craye, lay contorted, one hand clutching a fountain pen, another pointing toward a shattered carriage clock. It had stopped at midnight precisely, though thunder insisted otherwise, and seawater glittered on the rug like scattered confession beads. Mara noted two wineglasses, one smeared with lipstick, and footprints crusted with sand leading nowhere, circling the desk twice over. On the mahogany blotter lay a message, ink still wet: For truth, drown what breathes, then listen to silence carefully. Behind her, the manor sighed, and every candle guttered at once, as if the house itself withheld a heartbeat tonight.
created_at"2026-02-16T13:27:45.710464+00:00" 2/16/2026, 1:27:45 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4486
moderation_latency(null)
generation_time43071
tokens_prompt46
tokens_completion1023
native_tokens_prompt41
native_tokens_completion2541
native_tokens_completion_images0
native_tokens_reasoning2304
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"
usage0.02546125
router(null)
provider_responses
0
id"resp_08ac771f9644035e0169931b264ef481939135050b50daa2bf"
status200
is_byokfalse
latency186
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771248422-AYzYn1z8q1RmGIQ9zjRP"
upstream_id"resp_08ac771f9644035e0169931b264ef481939135050b50daa2bf"
total_cost0.02546125
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