Run: 2026-07-09-01KX41KNY1WB45W33EQGFF5C21

Run Details

Duration:
6.0s
Cost:
$0.003467
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
Rain polished the manor windows while Detective Vale arrived alone. Inside, a grandfather clock chimed thirteen, then abruptly stopped forever. Mrs. Holloway lay beneath it, clutching an unfamiliar silver key. Nobody had entered, yet muddy footprints crossed the locked study. Vale noticed each print pointed inward, never toward the doorway. Three guests waited silently upstairs, each hiding something from him. Then the telephone rang, though its disconnected wires lay outside. Vale answered, hearing his own voice whisper, “Murder is listening.”
created_at"2026-07-09T18:18:01.034Z" 7/9/2026, 6:18:01 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1994
moderation_latency(null)
generation_time5817
tokens_prompt46
tokens_completion513
native_tokens_prompt41
native_tokens_completion571
native_tokens_completion_images0
native_tokens_reasoning462
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"
usage0.003467
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0751bb9a966d2f83016a4fe5d91ae081949b0c91fa8fc82040"
is_byokfalse
latency233
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783621081-HCONzqyfbVRMFzgkKCty"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783621081-RelWVxFrpBu1gvR98xz7"
upstream_id"resp_0751bb9a966d2f83016a4fe5d91ae081949b0c91fa8fc82040"
total_cost0.003467
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710