Run: 2026-04-25-01KQ2HG8WAZN6PQKKSNZM8Y8HZ

Run Details

Duration:
8.9s
Cost:
$0.000107
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
0.00% 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
Detective Crane watched rain trace silver veins down glass as the body lay still nearby. The grandfather clock’s steady pendulum ticked eleven times into the oppressive midnight silence. A single overturned teacup had spilled chamomile across the Persian rug’s intricate crimson wool fibers. No fingerprints disturbed the polished mahogany desk, no muddy footprints marred the lacquered wooden floor. The only clue remained a faint, almond-sweet scent hovering near the victim’s slightly bluish lips.
created_at"2026-04-25T14:43:12.213Z" 4/25/2026, 2:43:12 PM
model"deepseek/deepseek-v4-pro-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency949
moderation_latency(null)
generation_time3397
tokens_prompt46
tokens_completion133
native_tokens_prompt39
native_tokens_completion103
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"
usage0.000106575
router(null)
provider_responses
0
endpoint_id"d084170b-dd99-4e53-9ae1-b63881f3cfbf"
id"1bd5f49f-ea0c-46de-af87-6b42ffa68c37"
is_byokfalse
latency288
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-1777128192-Od5oHS9z51MNtB9I2nBX"
session_id(null)
api_type"completions"
id"gen-1777128192-aCGlMvaTMvmLccvebeGn"
upstream_id"1bd5f49f-ea0c-46de-af87-6b42ffa68c37"
total_cost0.000106575
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
0.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
015
113
215
315
415