Run: 2026-09-10-01M25DP99FVB8H6B4GMAKTRVH9

Run Details

Duration:
21.1s
Cost:
$0.000916
Provider:
DeepSeek

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 hammered the mansion windows. Thunder shook the silent hallway. A scream cut the silence. Lord Ashcroft lay dead upstairs. His study door stood open. Blood pooled beneath his desk. A knife pierced his chest. The guests gathered downstairs, frightened. Detective Mara arrived within minutes. She studied every pale face. Nobody spoke about the storm. Then lights flickered and died. Darkness swallowed the grand foyer. A pistol shot rang out. Someone screamed in the blackness. Detective Mara lit her lighter. Another body lay nearby now. Lord Ashcroft's brother was dead. Now two murders haunted Blackwood. Detective Mara whispered, "Who next?"
created_at"2026-09-10T10:27:06.369Z" 9/10/2026, 10:27:06 AM
model"deepseek/deepseek-v4.1-flash-20260910"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency755
moderation_latency(null)
generation_time7513
tokens_prompt46
tokens_completion1508
native_tokens_prompt65
native_tokens_completion1511
native_tokens_completion_images(null)
native_tokens_reasoning1374
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"
service_tier(null)
usage0.00091635
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1789036026-7QseP58Aod57T9kEqHmM"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1789036026-TPt4GegX3tkTEfB9jvOm"
upstream_id"60c2ff6a-4464-4491-9619-fd16c31b2665"
provider_responses
0
endpoint_id"fd104bc8-535a-4d31-a847-a8e402e86a02"
id"60c2ff6a-4464-4491-9619-fd16c31b2665"
is_byokfalse
latency350
model_permaslug"deepseek/deepseek-v4.1-flash-20260910"
provider_name"DeepSeek"
status200
total_cost0.00091635
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195