Run: 2026-03-18-01KM08N5NW9TSWPRCZR6MC7YNW

Run Details

Duration:
3.8s
Cost:
$0.000726
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

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 tapped the courthouse steps as Detective Vale arrived alone. Inside, a clerk whispered, 'Another body, third this month' already. The victim lay in Judge Merrit's private archive room quietly. Candles burned despite daylight, casting shadows across scattered documents everywhere. Vale noticed a broken key on polished marble flooring nearby. On the desk, a clock stopped at 9:13 precisely today. He asked who last entered, and silence answered everyone present.
created_at"2026-03-18T10:42:55.82Z" 3/18/2026, 10:42:55 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3375
moderation_latency(null)
generation_time3630
tokens_prompt46
tokens_completion125
native_tokens_prompt41
native_tokens_completion574
native_tokens_completion_images0
native_tokens_reasoning472
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"
usage0.0007257
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_08a6eb24737c4c820169ba81afe5408193ae8db9e276f99c16"
is_byokfalse
latency238
model_permaslug"openai/gpt-5.4-nano-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-1773830575-P1QBC4LpfwidFr9J25HK"
upstream_id"resp_08a6eb24737c4c820169ba81afe5408193ae8db9e276f99c16"
total_cost0.0007257
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
010
110
210
310
410
510
610