Run: 2026-03-18-01KM0875AW30RFHTAJ7VHPR541

Run Details

Duration:
1.5s
Cost:
$0.000769
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
70.22% Matches word count (details)

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 polished the station windows, turning morning commuters into blurred silhouettes, while Inspector Vale studied the body beneath the clock. The victim, a watchmaker named Adrian Quill, lay beside scattered gears, his throat marked by a precise, almost theatrical wound. No one had heard a scream, though every clerk claimed to notice the station’s bells stop exactly at seven-twelve. Vale knelt, observing a smear of crimson on Quill’s cuff, and found a folded ticket tucked inside the dead man’s pocket. It read, in trembling ink, Platform Three, Midnight Appointment, and beneath that, a single word: Beware. Above them, the clock resumed ticking, as if awakened, and the entire waiting room seemed to inhale with quiet dread.
created_at"2026-03-18T10:35:16.714Z" 3/18/2026, 10:35:16 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency427
moderation_latency(null)
generation_time1389
tokens_prompt46
tokens_completion192
native_tokens_prompt41
native_tokens_completion164
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.00076875
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0c3b93d0ddce3a8e0169ba7fe4c8e48196981b475259bf1748"
is_byokfalse
latency189
model_permaslug"openai/gpt-5.4-mini-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773830116-svDXe2gXhWbd7kjRxO9t"
upstream_id"resp_0c3b93d0ddce3a8e0169ba7fe4c8e48196981b475259bf1748"
total_cost0.00076875
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
70.22% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
219
321
416
520