Run: 2026-07-09-01KX40F1RQFFMKQKGBEDSGR008

Run Details

Duration:
7.1s
Cost:
$0.007445
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain silvered Blackthorn Manor windows. Inspector Vale arrived before dawn. One upstairs window glowed faintly. Nobody answered his repeated knocking. Inside, clocks had stopped together. Ashes covered the library hearth. Beside them, Lord Harrow lay. His letter opener gleamed red. Vale touched nothing, noticing footprints. Footprints stopped beneath one door. A bell rang somewhere below. Then someone whispered Vale's name. Harrow's hand held fresh soil. Vale heard breathing behind him. He turned toward the silence. The hallway stood completely empty. Wet roses bloomed on stone. A hidden door clicked open.
created_at"2026-07-09T17:58:00.736Z" 7/9/2026, 5:58:00 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2073
moderation_latency(null)
generation_time6934
tokens_prompt46
tokens_completion549
native_tokens_prompt41
native_tokens_completion1234
native_tokens_completion_images0
native_tokens_reasoning1087
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"
usage0.007445
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_004bb27c1ea2fb7d016a4fe128cfa881959c54c9e93a38fbd7"
is_byokfalse
latency218
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-1783619880-Jw4wzHV4K2TtKm2hf2n8"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619880-YAIzcYpLzGgPFyhskLhR"
upstream_id"resp_004bb27c1ea2fb7d016a4fe128cfa881959c54c9e93a38fbd7"
total_cost0.007445
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
sentences18
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175