Run: 2026-07-09-01KX40QS5B9K9RG1XC139QA11K

Run Details

Duration:
3.7s
Cost:
$0.000455
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
95.58% 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 softly on windows. Detective Vale entered the library. Everyone stopped speaking at once. A body lay beside books. Its fingers gripped a silver key. No one claimed hearing anything. The clock had stopped at midnight. Vale studied every frightened face. Then someone locked the door. Murder had entered before them.
created_at"2026-07-09T18:02:46.841Z" 7/9/2026, 6:02:46 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2645
moderation_latency(null)
generation_time3588
tokens_prompt46
tokens_completion89
native_tokens_prompt41
native_tokens_completion69
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"
usage0.000455
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0fa554ef918db66d016a4fe24717688195aafe18b2d3d99758"
is_byokfalse
latency567
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-1783620166-0Qks6D6Q3GDIoP2FaYsL"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620166-dojBvAWWkKRwgy0RNeZz"
upstream_id"resp_0fa554ef918db66d016a4fe24717688195aafe18b2d3d99758"
total_cost0.000455
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
95.58% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
05
15
25
35
46
55
66
75
85
95