Run: 2026-03-18-01KM091T2E1VXSZHRPG4GQK5QD

Run Details

Duration:
5.1s
Cost:
$0.001727
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain slicked the manor windows. Inside, candles trembled over silence. Detective Mara found the body. Lord Edden lay beneath clocks. One wound, one missing ring. Everyone claimed they heard nothing. Yet footprints circled the library. Mara smiled; someone had lied.
created_at"2026-03-18T10:49:49.914Z" 3/18/2026, 10:49:49 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4935
moderation_latency(null)
generation_time5025
tokens_prompt46
tokens_completion321
native_tokens_prompt41
native_tokens_completion377
native_tokens_completion_images0
native_tokens_reasoning315
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"
usage0.00172725
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_07f4ac36b125d52e0169ba834df940819488537262f1f8caf2"
is_byokfalse
latency193
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-1773830989-VKBYwB7CqvboAEQEvC9t"
upstream_id"resp_07f4ac36b125d52e0169ba834df940819488537262f1f8caf2"
total_cost0.00172725
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
05
15
25
35
45
55
65
75