Run: 2026-09-23-01M36P56X2119CQYMTGWRPSJK1

Run Details

Duration:
11.7s
Cost:
$0.000701
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 stopped, though every other clock in Bellweather continued ticking beneath the storm's relentless rain. Inspector Vale found the astronomer face-down beside the telescope, one hand clenched around a brass key warm from someone's pocket. No window stood open, no footprints crossed the dust, and the locked door remained bolted from the inside all evening. Then Vale noticed the dead man's watch was running backward, its cracked glass reflecting someone standing behind her in silence. She turned, but the observatory held only rainlight, scattered star charts, and a second brass key lying beneath her boot. Outside, the clock began striking thirteen, and Vale understood the astronomer had not been the room's only dead occupant tonight.
created_at"2026-09-23T08:29:46.793Z" 9/23/2026, 8:29:46 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4235
moderation_latency(null)
generation_time11711
tokens_prompt46
tokens_completion573
native_tokens_prompt41
native_tokens_completion1394
native_tokens_completion_images0
native_tokens_reasoning1234
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"
usage0.0007011
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790152186-Q9KgucPClxbyIpaH5r80"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790152186-IdO5kbPWgTeTeQVmLnFV"
upstream_id"resp_02c7a8aa706ff03a016ab38dfae1ec87d1994fd067cf995309"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_02c7a8aa706ff03a016ab38dfae1ec87d1994fd067cf995309"
is_byokfalse
latency1013
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0007011
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
sentences6
wordCounts
020
120
220
320
420
520