Run: 2026-07-25-01KYCSR8KCPN1R680NJCJG0B1V

Run Details

Duration:
1.8s
Cost:
$0.001062
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
86.88% 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
Rain lashed against the tall, arched windows of the grand manor as Lord Harrington poured a glass of amber whiskey. He did not notice the shadowy figure creeping silently across the thick, velvet rug toward his mahogany writing desk tonight. A heavy, brass candlestick crashed downward with brutal precision, shattering his skull and ending his prosperous life in a second. Blood seeped rapidly into the intricate floral patterns of the expensive carpet, turning the vibrant red dyes permanently crimson. The mysterious killer wiped the dripping weapon thoroughly using a silk handkerchief, then slipped away undetected into the stormy dark. Outside, lightning illuminated the desolate courtyard just as the grandfather clock chimed midnight, signaling a terrible new mystery beginning.
created_at"2026-07-25T14:09:34.326Z" 7/25/2026, 2:09:34 PM
model"google/gemini-3.6-flash-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency825
moderation_latency(null)
generation_time1776
tokens_prompt46
tokens_completion197
native_tokens_prompt38
native_tokens_completion134
native_tokens_completion_images0
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"
service_tier"default"
usage0.001062
router(null)
provider_responses
0
endpoint_id"5d6d133d-a953-4781-a835-7ee76f4e1388"
id"nsNkatvxF4mY-8YPyO7x2Ak"
is_byokfalse
latency817
model_permaslug"google/gemini-3.6-flash-20260721"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784988574-hw01qHFGMvs9NcLSbXqP"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784988574-KuiIBTPkD4D6BiSHRDUW"
upstream_id"nsNkatvxF4mY-8YPyO7x2Ak"
total_cost0.001062
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
86.88% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
220
319
420
519