Run: 2026-09-23-01M36RBQKHSZ0E6WDAJE5TBYFR

Run Details

Duration:
11.1s
Cost:
$0.000568
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, the station clock stopped, though every passenger swore its hands had been moving when Inspector Vale arrived alone. A woman lay beneath the timetable, one gloved hand curled around a ticket punched for tomorrow’s impossible train to nowhere. No one recognized her, yet the stationmaster kept staring at her face as if remembering a promise he had buried. Vale asked who had last seen the victim; all station clocks began ticking backward together before replies could be offered. Then the dead woman’s ticket slipped from her fingers, revealing Vale’s name printed beneath the destination in fresh red ink.
created_at"2026-09-23T09:08:17.66Z" 9/23/2026, 9:08:17 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4197
moderation_latency(null)
generation_time11077
tokens_prompt46
tokens_completion557
native_tokens_prompt41
native_tokens_completion1127
native_tokens_completion_images0
native_tokens_reasoning1004
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"
usage0.0005676
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790154497-JLZKkhK057ck6GngUFwi"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790154497-G0tkFjTM80yWZ2bA6KDQ"
upstream_id"resp_04a5cedd2d85e133016ab39701c97087d1b3b492db4af0e17f"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_04a5cedd2d85e133016ab39701c97087d1b3b492db4af0e17f"
is_byokfalse
latency1030
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0005676
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420