Run: 2026-10-20-01M5C68KEKV0QE6QXSSW2HNCTA

Run Details

Duration:
12.1s
Cost:
$0.000989
Provider:
Wafer

Evaluation summary

Score Evaluator
Details Link
90.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered mansion windows while the guests waited in silence. Lord Ashford did not appear for his own midnight toast. The butler knocked twice and opened the heavy study door. Inside, Lord Ashford slumped behind his desk with bloodied hands. A silver letter opener stood upright in his pale chest. The window was locked and the fireplace held cold ashes. On the desk lay a note in sharp black ink. It said, "One of you knows why he died tonight." The butler stepped back as guests began whispering at once. Detective Hale entered quietly and studied each pale, frightened face. No one admitted seeing anyone enter the locked study tonight.
created_at"2026-10-20T08:18:50.968Z" 10/20/2026, 8:18:50 AM
model"deepseek/deepseek-v4.1-flash-20261017"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency614
moderation_latency(null)
generation_time12088
tokens_prompt46
tokens_completion1927
native_tokens_prompt65
native_tokens_completion1957
native_tokens_completion_images(null)
native_tokens_reasoning1796
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)
usage0.0009889
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1792484330-HU9R1J80NpixZhjM2vU9"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1792484330-rZ15t5dDUrk9VvZuHKRz"
upstream_id"chatcmpl-8757a963d3c3433d90647695f406b93e"
provider_responses
0
endpoint_id"66d4851d-7738-4948-9d40-2ab6dc54f895"
id"chatcmpl-8757a963d3c3433d90647695f406b93e"
is_byokfalse
latency614
model_permaslug"deepseek/deepseek-v4.1-flash-20261017"
provider_name"Wafer"
status200
total_cost0.0009889
cache_discount(null)
upstream_inference_cost0
provider_name"Wafer"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
90.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
720
810
910