Run: 2026-09-03-01M1KBS9AC2NASV6XDGP74GBQ8

Run Details

Duration:
26.9s
Cost:
$0.014927
Provider:
Sail Research

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 fog rolled thick across the moor, entirely swallowing the old manor's iron gates and gravel drive in cold silence. Inside the manor, a single candle flickered in the library, casting long shadows against towering shelves of ancient leather-bound books. Detective Inspector Clara Voss knelt beside the body, her gloved fingers hovering above a crimson stain on the Persian rug. The dead man's face was frozen in final surprise, his mouth open as if he had desperately tried to speak. A shattered teacup lay near his outstretched hand, its small delicate painted roses now flecked with tiny dark red droplets. Clara glanced toward the locked door, noting the key still resting in the brass lock from inside the sealed room. No windows had been opened, and the only chimney flue was blocked by years of old soot and abandoned nests. She slowly picked up the fallen teacup's handle, frowning at the faint smell of bitter almonds rising immediately from it.
created_at"2026-09-03T10:07:14.268Z" 9/3/2026, 10:07:14 AM
model"deepseek/deepseek-v4-pro-20260813"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency885
moderation_latency(null)
generation_time26797
tokens_prompt46
tokens_completion3848
native_tokens_prompt118
native_tokens_completion3730
native_tokens_completion_images(null)
native_tokens_reasoning3538
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)
usage0.01492656
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788430034-bBYqFxOJIXo4w3D3lsCS"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788430034-JYJF89VudTy4pJqloYbX"
upstream_id"asapreq_5d1455006906b830884f3f1054c5b32b"
provider_responses
0
endpoint_id"6811c06b-8624-4796-ad6e-807e33b97ae6"
id"asapreq_5d1455006906b830884f3f1054c5b32b"
is_byokfalse
latency885
model_permaslug"deepseek/deepseek-v4-pro-20260813"
provider_name"Sail Research"
status200
total_cost0.01492656
cache_discount(null)
upstream_inference_cost0
provider_name"Sail Research"
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