Run: 2026-09-23-01M36NRMFQ3XCPG2T1K9W18CZC

Run Details

Duration:
3.0s
Cost:
$0.000048
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
15.46% 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, the lighthouse keeper found the door unlocked, though he had locked it himself before the storm began. A single wet footprint crossed the parlor rug, stopping beside the cold fireplace without leaving any trail. On the desk, beneath a glass paperweight, lay a note written in his own unmistakable hand. It read, “The murderer is already inside,” and the ink remained shining, fresh as spilled blood.
created_at"2026-09-23T08:22:54.721Z" 9/23/2026, 8:22:54 AM
model"openai/gpt-6-luna-20260922"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2329
moderation_latency(null)
generation_time2986
tokens_prompt46
tokens_completion106
native_tokens_prompt41
native_tokens_completion88
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"
usage0.0000481
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790151774-SahLugWHLHhNOJh9hHkY"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790151774-N2LLnApCg0VZkOCHDXGM"
upstream_id"resp_064d4a0a4fc5af07016ab38c5ecd3887d188b045e95ab47981"
provider_responses
0
endpoint_id"05e94e02-b9c2-4bbb-ba55-4082ee9ad687"
id"resp_064d4a0a4fc5af07016ab38c5ecd3887d188b045e95ab47981"
is_byokfalse
latency683
model_permaslug"openai/gpt-6-luna-20260922"
provider_name"OpenAI"
status200
total_cost0.0000481
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
15.46% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
019
117
216
316