Run: 2026-07-09-01KX41CY87WWZZRP0978NS442E

Run Details

Duration:
1.8s
Cost:
$0.000605
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
80.09% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain tapped against the manor windows. Detective Vale entered through servants' quarters. Everyone gathered beneath flickering chandeliers. Lord Ashcombe lay beside overturned chessboard. Crimson stained his embroidered waistcoat front. Nobody moved, except the grandfather clock. Mara whispered, “The doors remained locked.” Vale examined each silent witness carefully. Then thunder shook the ancient house. A second scream pierced the darkness.
created_at"2026-07-09T18:14:20.173Z" 7/9/2026, 6:14:20 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency864
moderation_latency(null)
generation_time1348
tokens_prompt46
tokens_completion125
native_tokens_prompt41
native_tokens_completion94
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"
usage0.000605
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0f1a3ed996a91e73016a4fe4fc4f188195b48e735471cf297a"
is_byokfalse
latency347
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-1783620860-LaIyZGRq81Bi95Fj9XzJ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620860-OZtFC8Lpntj1jCyDs8nT"
upstream_id"resp_0f1a3ed996a91e73016a4fe4fc4f188195b48e735471cf297a"
total_cost0.000605
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
80.09% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
06
16
25
36
46
56
66
76
86
96