Run: 2026-04-25-01KQ2F5GD7MQEQ4WW48Q4MBYAK

Run Details

Duration:
1m 5s
Cost:
$0.001335
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain fell in sheets on alley where the corpse lay still a gas lamp flickered casting shadows on wall. Detective Marlow arrived and stopped under the flickering light to observe the body's position and the pattern of the blood. Her blue dress was torn at the shoulder where a bullet had entered and a dark stain spread from wound. Marlow noted the absence of a weapon near the body a clear clue the killer took it and hid it.
created_at"2026-04-25T14:02:16.875Z" 4/25/2026, 2:02:16 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency630
moderation_latency(null)
generation_time64459
tokens_prompt46
tokens_completion3769
native_tokens_prompt39
native_tokens_completion4747
native_tokens_completion_images(null)
native_tokens_reasoning4653
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"
usage0.00133462
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"e3e37208-2e4c-4b49-a02b-55aa8e7bb5be"
is_byokfalse
latency350
model_permaslug"deepseek/deepseek-v4-flash-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777125736-sKqnJgPMPbMFkiav3Sug"
session_id(null)
api_type"completions"
id"gen-1777125736-TDzCmBpJnGKco9qgQSAn"
upstream_id"e3e37208-2e4c-4b49-a02b-55aa8e7bb5be"
total_cost0.00133462
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
sentences4
wordCounts
020
120
220
320