Run: 2026-04-25-01KQ2E0DJ2DMX6M9JQ5FV4JEJ2

Run Details

Duration:
42.5s
Cost:
$0.001696
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The old mansion loomed against the dark, stormy midnight sky. Rain hammered the windows like impatient fingers demanding urgent entry. Inside, a single candle flickered, casting long, ghostly, dancing shadows. A woman's sudden scream shattered the heavy silence like glass. The footsteps thundered down the grand staircase in frantic haste. A door flew open, revealing a body on the floor. The detective arrived, his coat dripping with the cold rain. He knelt beside the victim, checking for any faint pulse. Her lifeless eyes stared blankly at the ornate ceiling above. A single drop of blood marred the polished wooden floor. The detective noticed a torn photograph clutched in her hand. It depicted a smiling couple on a sunlit beach day. Outside, the storm raged on, indifferent to the human tragedy.
created_at"2026-04-25T13:42:01.541Z" 4/25/2026, 1:42:01 PM
model"deepseek/deepseek-v4-pro-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency597
moderation_latency(null)
generation_time42440
tokens_prompt46
tokens_completion1940
native_tokens_prompt39
native_tokens_completion1930
native_tokens_completion_images(null)
native_tokens_reasoning1750
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"
usage0.001696065
router(null)
provider_responses
0
endpoint_id"d084170b-dd99-4e53-9ae1-b63881f3cfbf"
id"f116f625-8ec2-4f9e-9204-8a922e66b3ed"
is_byokfalse
latency281
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-1777124521-aHnquHFyLxmNUKCYuCnB"
session_id(null)
api_type"completions"
id"gen-1777124521-lpxk0gcMolSf0KjkICBT"
upstream_id"f116f625-8ec2-4f9e-9204-8a922e66b3ed"
total_cost0.001696065
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences13
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210