Run: 2026-09-03-01M1KA1714H3EZ22T8BV4QNHEA

Run Details

Duration:
40.2s
Cost:
$0.013299
Provider:
SiliconFlow

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 old manor's library smelled of damp wool and candle smoke, and heavy shadows gathered beneath the sagging oak bookshelves. Detective Marlowe found the body slumped in a leather wingback chair, a single crimson rose resting upon its still lap. The victim's eyes were wide open, staring at the ornate ceiling as though she had witnessed something utterly impossible there. A porcelain teacup lay shattered near the cold fireplace, and a faint trace of bitter almonds lingered in the air. There was no blood, no visible wound, and no sign of struggle, only the clock ticking loudly from the mantel. Marlowe noticed a folded note tucked beneath the rose, its edges crisp and white against the dark velvet chair fabric. He carefully lifted the note with gloved fingers, unfolded it, and read the single typed line printed in black ink. The message said, "You missed one, Detective," and below it was a tiny drawing of a clock stopped at midnight.
created_at"2026-09-03T09:36:36.915Z" 9/3/2026, 9:36:36 AM
model"deepseek/deepseek-v4-pro-20260813"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency917
moderation_latency(null)
generation_time40172
tokens_prompt46
tokens_completion3258
native_tokens_prompt118
native_tokens_completion3319
native_tokens_completion_images(null)
native_tokens_reasoning3125
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)
usage0.013299
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788428196-hf3IFP01kTjsXRhZNn3Z"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788428196-QI2oPemRutSz8P3KqD37"
upstream_id"chatcmpl-ef62f580-80c7-47c6-82d8-48d0f772f0bd"
provider_responses
0
endpoint_id"65367950-3b6c-4abd-9cb0-d553a47de6d9"
id"chatcmpl-ef62f580-80c7-47c6-82d8-48d0f772f0bd"
is_byokfalse
latency917
model_permaslug"deepseek/deepseek-v4-pro-20260813"
provider_name"SiliconFlow"
status200
total_cost0.013299
cache_discount(null)
upstream_inference_cost0
provider_name"SiliconFlow"
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
sentences8
wordCounts
020
120
220
320
420
520
620
720