Run: 2026-09-23-01M36P2Y742GMFB4WMY9PCBEXD

Run Details

Duration:
10.5s
Cost:
$0.000434
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 manor bell rang thirteen times above Blackwater. Inspector Vale arrived, finding every door locked tight from inside. Lady Ashcombe lay beneath the staircase, her throat neatly cut. Beside her, one bloodless glove rested upon the carpet silently. The guests watched Vale, pretending not to recognize the handwriting. It spelled one name: Vale, written in the victim’s blood. Outside, rain erased footprints before anyone could explain them completely.
created_at"2026-09-23T08:28:32.362Z" 9/23/2026, 8:28:32 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4996
moderation_latency(null)
generation_time10499
tokens_prompt46
tokens_completion384
native_tokens_prompt41
native_tokens_completion859
native_tokens_completion_images0
native_tokens_reasoning763
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"
usage0.0004336
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790152112-O3LicsL4DQHB0b4kI6e5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790152112-0YA6EsCBdKEMmw5s1rmf"
upstream_id"resp_09dd76ef0d68ea3b016ab38db0778487d1b7fa616bcd0fd93f"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_09dd76ef0d68ea3b016ab38db0778487d1b7fa616bcd0fd93f"
is_byokfalse
latency1002
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0004336
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
sentences7
wordCounts
010
110
210
310
410
510
610