Run: 2026-07-09-01KX3ZZMV6MTFJDYRQT7JXBNJP

Run Details

Duration:
6.3s
Cost:
$0.007169
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 polished the courthouse windows. Detective Vale arrived before dawn. Inside, someone had moved chairs. One chair faced the judge. Another held a bloodstained glove. The victim lay beneath curtains. His watch had stopped precisely. Seven twelve marked the silence. Vale noticed mud beside him. Fresh mud, despite clear skies. The doors remained locked inside. Clerk Morris trembled near them. He claimed nobody entered afterward. Vale studied his spotless shoes. Then footsteps echoed from upstairs. Every witness looked toward darkness. Vale drew his revolver slowly. Something scratched behind the walls. Someone whispered the detective's name. The corpse opened one eye.
created_at"2026-07-09T17:49:35.981Z" 7/9/2026, 5:49:35 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5930
moderation_latency(null)
generation_time6160
tokens_prompt46
tokens_completion193
native_tokens_prompt41
native_tokens_completion1188
native_tokens_completion_images0
native_tokens_reasoning1034
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.007169
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_027566c2ab30a42e016a4fdf300c1c8194864647544f1d453e"
is_byokfalse
latency250
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783619375-rsLT14Da8czS5sPjpWom"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619375-t3ohsdnQBjJp2r5ttCIm"
upstream_id"resp_027566c2ab30a42e016a4fdf300c1c8194864647544f1d453e"
total_cost0.007169
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195