Run: 2026-09-23-01M36P57E1FCCANR2G5QJB0DNK

Run Details

Duration:
12.6s
Cost:
$0.000538
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, the bell rang beneath the drowned town square. Inspector Vale arrived carrying one wet glove and no warrant. Inside the clocktower, someone had arranged six chairs facing inward. On the seventh chair rested Mayor Hallow’s severed silver watch. Its hands pointed backward, though its glass remained perfectly clear. Vale heard footsteps above, then laughter below the old floorboards. She drew her pistol, remembering the letter’s final, impossible sentence. “Do not trust the person who arrives alone after midnight.” Then the tower door opened silently, though locked from outside.
created_at"2026-09-23T08:29:47.335Z" 9/23/2026, 8:29:47 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5072
moderation_latency(null)
generation_time12598
tokens_prompt46
tokens_completion432
native_tokens_prompt41
native_tokens_completion1068
native_tokens_completion_images0
native_tokens_reasoning941
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"
usage0.0005381
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790152187-YjBdJqu4iUyRTTCAG8WD"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790152187-NSc7KPpifEyZxNPh90rv"
upstream_id"resp_04d0090769f4ba8b016ab38dfb989887d180fd5f4c3a09a9ac"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_04d0090769f4ba8b016ab38dfb989887d180fd5f4c3a09a9ac"
is_byokfalse
latency1147
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0005381
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
010
110
210
310
410
510
610
710
810