Run: 2026-10-27-01M5YF57ABFJPSMQ9RKF0ZCB4V

Run Details

Duration:
11.7s
Cost:
$0.004756
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
The rain had stopped before dawn, leaving the village streets shining like black glass beneath the lamps outside Saint Jude’s. Detective Mara Voss found the first footprint on the church steps, pressed into blood that no rain had yet touched. Inside, the organ was playing softly, although its bench stood empty and the church had been locked since precisely midnight. At the altar lay Reverend Bell, his white robes arranged neatly around him, his open eyes fixed upon the ceiling. Someone had placed a silver coin beneath his tongue and folded his hands around a key made of dark bone. Mara recognized the coin immediately, though she had not seen one since her brother vanished twenty years before that morning. Behind her, the church door clicked shut, and the music stopped on a note that seemed to hang there forever. Then a voice from the confessional whispered her brother’s name, and Mara realized the church had never been truly empty.
created_at"2026-10-27T10:40:37.205Z" 10/27/2026, 10:40:37 AM
model"openai/gpt-6.1-terra-20261026"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4304
moderation_latency(null)
generation_time11656
tokens_prompt46
tokens_completion701
native_tokens_prompt41
native_tokens_completion943
native_tokens_completion_images0
native_tokens_reasoning753
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"
usage0.004756
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer(null)
request_id"req-1793097637-cgo4EM89xtZtIqfGtnW6"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1793097637-Ys1zuESAtByxD5hyxMwY"
upstream_id"resp_081a0a5b0db0a0e2016ae07fa5467887d193a8f1d44a059a31"
provider_responses
0
endpoint_id"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id"resp_081a0a5b0db0a0e2016ae07fa5467887d193a8f1d44a059a31"
is_byokfalse
latency401
model_permaslug"openai/gpt-6.1-terra-20261026"
provider_name"OpenAI"
status200
total_cost0.004756
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
sentences8
wordCounts
020
120
220
320
420
520
620
720