Run: 2026-04-25-01KQ2E1JXV3BAW0X36Z29VDYT1

Run Details

Duration:
1m 4s
Cost:
$0.002747
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 relentless rain fell in drenching sheets, thoroughly soaking the crime scene long before the overwhelmed forensic team could arrive. Detective Harper crouched beside the body, her very sharp eyes noting the victim's neck, twisted at a grotesquely unnatural angle. A single crimson glove lay near the outstretched hand, pristine and strangely out of place in the wet, grimy setting. The victim wore an expensive emerald silk dress, now cruelly torn and stained with wet mud and something far darker. Harper noticed a faint, lingering scent of expensive jasmine perfume mingling unpleasantly with the sharp metallic tang of fresh blood. She carefully pulled back the delicate lace cuff, revealing a livid bruise that whispered a silent tale of grim violence.
created_at"2026-04-25T13:42:39.807Z" 4/25/2026, 1:42:39 PM
model"deepseek/deepseek-v4-pro-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency930
moderation_latency(null)
generation_time64002
tokens_prompt46
tokens_completion2681
native_tokens_prompt39
native_tokens_completion3138
native_tokens_completion_images(null)
native_tokens_reasoning2984
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"
usage0.002747025
router(null)
provider_responses
0
endpoint_id"d084170b-dd99-4e53-9ae1-b63881f3cfbf"
id"ccb5d9ad-b42c-44c9-a447-d8bb1e3d81c9"
is_byokfalse
latency280
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-1777124559-cui2UzkWjzBco17eRBFk"
session_id(null)
api_type"completions"
id"gen-1777124559-hoNi0pMuvKTpvbq3gRR2"
upstream_id"ccb5d9ad-b42c-44c9-a447-d8bb1e3d81c9"
total_cost0.002747025
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
sentences6
wordCounts
020
120
220
320
420
520