Run: 2026-09-23-01M36P0BQV3X5NN2329PEBKABP

Run Details

Duration:
3.0s
Cost:
$0.000053
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
0.24% 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, Mara Bell found the library door ajar, though she distinctly remembered locking it before supper. Inside, the grandfather clock had stopped at eleven seventeen, its pendulum hanging motionless above the carpet. A single candle burned beside the desk, illuminating one fresh footprint in the dust. The footprint pointed toward the empty chair where her uncle had promised to meet her. Behind Mara, the front door clicked shut, and someone whispered her name from the darkened hall.
created_at"2026-09-23T08:27:07.907Z" 9/23/2026, 8:27:07 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2389
moderation_latency(null)
generation_time3015
tokens_prompt46
tokens_completion127
native_tokens_prompt41
native_tokens_completion98
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"
usage0.0000531
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790152027-ZPP138eCWYgF6VrKV6pm"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790152027-AZ7ZXvyGBR6fpAJrskzk"
upstream_id"resp_0cf5f6ca2786eba7016ab38d5c06a887d1aa0bbe02f8036333"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_0cf5f6ca2786eba7016ab38d5c06a887d1aa0bbe02f8036333"
is_byokfalse
latency1031
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0000531
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
0.24% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
017
116
214
315
416