Run: 2026-10-13-01M4V21CANV2HTD94BKRNAMES7

Run Details

Duration:
15.3s
Cost:
$0.019416
Provider:
Google AI Studio

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
Heavy rain battered the towering stained glass windows of the library while Detective Vance knelt beside the cold, lifeless body. Lord Blackwood was still clutching a silver letter opener, though the fatal wound had clearly come from a different weapon. A single crimson drop stained the pristine Persian rug, leading toward the secret passage hidden behind the mahogany bookshelves nearby. Every door had been locked from the inside, meaning the clever killer was somehow still trapped within this sprawling mansion. Vance adjusted his damp trench coat and stood up, realizing that everyone in the grieving household had a dark motive. The grandfather clock struck midnight in the shadowy hallway, signaling that the deadly game of cat and mouse had begun.
created_at"2026-10-13T16:37:54.661Z" 10/13/2026, 4:37:54 PM
model"google/gemini-4-argon-20261013"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2135
moderation_latency(null)
generation_time15241
tokens_prompt46
tokens_completion641
native_tokens_prompt68
native_tokens_completion1928
native_tokens_completion_images0
native_tokens_reasoning1791
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)
usage0.019416
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791909474-R1Zd84YbBeWjMRhhgdp8"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791909474-v0BlNYcHcjBwEJwDV7t1"
upstream_id"Yl7Oar3rLNGk1MkPvf_w8A0"
provider_responses
0
endpoint_id"4934736c-d662-4fe3-98eb-56def8c8c174"
id"Yl7Oar3rLNGk1MkPvf_w8A0"
is_byokfalse
latency2135
model_permaslug"google/gemini-4-argon-20261013"
provider_name"Google AI Studio"
status200
total_cost0.019416
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
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
sentences6
wordCounts
020
120
220
320
420
520