Run: 2026-07-09-01KX41DGNS74J8K0TBQ69MP8JS

Run Details

Duration:
2.3s
Cost:
$0.000833
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
84.02% 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 shuttered manor. Inspector Vale arrived before midnight. The gate creaked behind him. No footprints marked the muddy driveway. Inside, candles trembled beside portraits. Someone had extinguished every hallway lamp. A grandfather clock suddenly stopped ticking. Vale found blood beneath it. The study door stood slightly open. Cold air carried bitter almond scent. On the desk, glasses remained untouched. Beside them lay one black rose. The victim sat facing the window. His eyes reflected nothing but darkness. Vale reached toward the silent telephone. It rang before his fingers touched. A woman's voice whispered his name. Then every candle went out.
created_at"2026-07-09T18:14:39.039Z" 7/9/2026, 6:14:39 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency600
moderation_latency(null)
generation_time2160
tokens_prompt46
tokens_completion182
native_tokens_prompt41
native_tokens_completion132
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"
usage0.000833
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_095aa24c09f6decc016a4fe50f1df88197a18cdfcc3a495ad0"
is_byokfalse
latency214
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-1783620879-oNW1iqGwtZFtCtQ0Ua97"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620879-CgpvdifYYmp6kRhK9bF8"
upstream_id"resp_095aa24c09f6decc016a4fe50f1df88197a18cdfcc3a495ad0"
total_cost0.000833
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
84.02% Matches word count n/a
neededCleanfalse
sentences18
wordCounts
06
15
25
36
45
56
66
75
86
96
106
116
126
136
146
156
166
175