Run: 2026-09-23-01M36NKS19HVT2X67Y44HZYP3T

Run Details

Duration:
2.0s
Cost:
$0.000043
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 clock struck thirteen, startling everyone awake. Inspector Vale discovered the library door locked from within somehow. A crimson thread curled beside the victim’s cold, pale hand. Rain tapped windows while twelve guests waited beneath watchful portraits. Nobody admitted hearing footsteps upstairs before the lights briefly failed. Then someone whispered, “The murderer is still here among us.”
created_at"2026-09-23T08:20:15.535Z" 9/23/2026, 8:20:15 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1792
moderation_latency(null)
generation_time1991
tokens_prompt46
tokens_completion109
native_tokens_prompt41
native_tokens_completion77
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.0000426
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151615-s4T1GThvjwBbXbBm1cCN"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151615-oDxXtSzEpjN1moGZRB1h"
upstream_id"resp_004657fc5321a0a8016ab38bbfa97087d1856ced4fc713f5ad"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_004657fc5321a0a8016ab38bbfa97087d1856ced4fc713f5ad"
is_byokfalse
latency358
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0000426
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
010
110
210
310
410
510