Run: 2026-07-09-01KX411JGFPE7ZG5282CR2S3HH

Run Details

Duration:
6.6s
Cost:
$0.007205
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 tapped against manor windows. At midnight, someone screamed upstairs. Detective Vale arrived before dawn. Black mud clung to boots. Candles flickered beside the corpse. Her left hand held something. A silver key gleamed there. Vale recognized that key immediately. Nobody mentioned locked garden doors. Three heirs waited in silence. Each wore freshly polished shoes. One pair carried crimson dust. Then the clock struck thirteen. Every candle died at once. Someone whispered the detective’s name. He faced the empty hall. Wet footprints crossed the carpet. None led toward the doorway. All pointed toward the corpse. Vale slowly drew his revolver. The door locked behind him.
created_at"2026-07-09T18:08:07.702Z" 7/9/2026, 6:08:07 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5397
moderation_latency(null)
generation_time5689
tokens_prompt46
tokens_completion196
native_tokens_prompt41
native_tokens_completion1194
native_tokens_completion_images0
native_tokens_reasoning1034
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"
usage0.007205
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_016be01320262db3016a4fe38882188193a3e6b018a8934482"
is_byokfalse
latency206
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-1783620488-kb8vNlrQ80E8WcfE0MBE"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620488-6jwUcN4u8qX2PWyZ1GKT"
upstream_id"resp_016be01320262db3016a4fe38882188193a3e6b018a8934482"
total_cost0.007205
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
sentences21
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205