Run: 2026-04-25-01KQ2DRDYEH0B4N9J0WH68MPB1

Run Details

Duration:
4.7s
Cost:
$0.000144
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
97.89% 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
The grandfather clock struck midnight. Rain lashed against leaded windows. Detective Inspector Aris Thorne arrived. The manor’s grand door opened. A scream had summoned him. A single gunshot, then silence. A body lay in study. Lord Pemberton was stone dead. A crystal glass lay shattered. A faint smell of almonds. His face held frozen terror. The cause was not obvious. No sign of forced entry. The household stood in shock. A pale butler wrung hands. Lady Pemberton wept soundlessly nearby. A son stood grim-faced. A daughter clutched her pearls. Each face held strange secrets. Thorne’s eyes missed nothing. The game was already afoot.
created_at"2026-04-25T13:37:39.794Z" 4/25/2026, 1:37:39 PM
model"deepseek/deepseek-v4-pro-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency941
moderation_latency(null)
generation_time4635
tokens_prompt46
tokens_completion176
native_tokens_prompt39
native_tokens_completion146
native_tokens_completion_images(null)
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"stop"
usage0.000143985
router(null)
provider_responses
0
endpoint_id"d084170b-dd99-4e53-9ae1-b63881f3cfbf"
id"d69b850d-c1a8-4b5a-8412-eedb36d71d4d"
is_byokfalse
latency274
model_permaslug"deepseek/deepseek-v4-pro-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777124259-DKF5sIfkTMUDNdAvGUAn"
session_id(null)
api_type"completions"
id"gen-1777124259-a2dNYgBTUmDbVH6UXqC0"
upstream_id"d69b850d-c1a8-4b5a-8412-eedb36d71d4d"
total_cost0.000143985
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
97.89% Matches word count n/a
neededCleanfalse
sentences21
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
164
175
185
194
205