Run: 2026-09-23-01M36NVM2V9C5CF9W4PF13AKW3

Run Details

Duration:
7.0s
Cost:
$0.000304
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 old observatory’s clock struck thirteen, and Inspector Vale found a fresh footprint circling the locked telescope inside. Beyond the rain-streaked windows, snow covered every rooftop, yet the victim’s shoes were dry and dusted with unfamiliar yellow pollen. Vale lifted the dead man’s hand, noticing a brass key clenched there, warm despite the chill and the room’s silence. Then the clock struck once more, though its pendulum hung motionless, and someone whispered Vale’s name from inside the wall.
created_at"2026-09-23T08:24:32.609Z" 9/23/2026, 8:24:32 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6571
moderation_latency(null)
generation_time6955
tokens_prompt46
tokens_completion136
native_tokens_prompt41
native_tokens_completion599
native_tokens_completion_images0
native_tokens_reasoning487
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"
usage0.0003036
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151872-tHilfz4d7wkq7VuMcz35"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151872-TuiCoDwKUylmzO82BAKm"
upstream_id"resp_09212be5105f87f7016ab38cc0b07c87d19dfb168df861819e"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_09212be5105f87f7016ab38cc0b07c87d19dfb168df861819e"
is_byokfalse
latency820
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0003036
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
sentences4
wordCounts
020
120
220
320