Run: 2026-09-23-01M37HKBMN53DAR77YWP086EE4

Run Details

Duration:
31.4s
Cost:
$0.022892
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 lighthouse keeper found a woman's body seated at his kitchen table, still wearing her white wedding veil. The strange part was that her husband had drowned three winters earlier, according to every surviving official record in town. She held a damp envelope addressed to Detective Mara Vale, whose name nobody in the isolated village should have known. But Mara had arrived that afternoon, summoned by a telegram warning her that someone would die before the tide turned. The keeper swore he had locked the kitchen before sunset, when the chair had stood empty beside an untouched supper. Outside, waves struck the rocks with enough force to shake the windows, yet the woman's veil somehow remained perfectly dry. On the table lay three silver coins, each stamped with tomorrow's date and marked by the same unmistakable bloody fingerprint. Mara lifted the envelope, and somewhere overhead, a door slammed in the lantern room that had been sealed for decades. From behind the sealed door came a woman's voice, whispering that the murderer was standing directly behind Mara herself now.
created_at"2026-09-23T16:29:21.949Z" 9/23/2026, 4:29:21 PM
model"openai/gpt-6-sol-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5242
moderation_latency(null)
generation_time31362
tokens_prompt46
tokens_completion711
native_tokens_prompt41
native_tokens_completion2281
native_tokens_completion_images0
native_tokens_reasoning2070
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"
usage0.022892
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790180961-f3NNwRTMs3WNcAzIWwYQ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790180961-SvARFp7TJyZy6b2VOQtA"
upstream_id"resp_0e001d8c3e601885016ab3fe620fe087d1b3eb6b1f367ab0dd"
provider_responses
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endpoint_id"1cfc7d9d-4404-4b8e-9ee4-58ae45c9dcd4"
id"resp_0e001d8c3e601885016ab3fe620fe087d1b3eb6b1f367ab0dd"
is_byokfalse
latency523
model_permaslug"openai/gpt-6-sol-20260922"
provider_name"OpenAI"
status200
total_cost0.022892
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
sentences9
wordCounts
020
120
220
320
420
520
620
720
820