Run: 2026-10-13-01M4V1T1KXCA7GTT9ARABZ6ZNM

Run Details

Duration:
14.2s
Cost:
$0.017856
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 pounded against the tall library windows while Detective Miller examined the cold body lying on the Persian rug. Lord Blackwood stared blankly at the ceiling with a silver letter opener buried deep inside his silent, motionless, bleeding chest. The crystal glass of expensive vintage brandy sat upon the mahogany desk beside a freshly written and very desperate note. Every single door was bolted tightly from the inside, meaning the clever killer was still hiding somewhere within this mansion. Miller adjusted his wet trench coat and sighed, knowing that nobody in the wealthy family would willingly tell the truth. Suddenly, the grandfather clock in the dark hallway struck midnight, and a terrifying scream echoed from the upstairs master bedroom.
created_at"2026-10-13T16:33:54.314Z" 10/13/2026, 4:33:54 PM
model"google/gemini-4-argon-20261013"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2231
moderation_latency(null)
generation_time14140
tokens_prompt46
tokens_completion623
native_tokens_prompt68
native_tokens_completion1772
native_tokens_completion_images0
native_tokens_reasoning1634
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)
usage0.017856
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791909234-yi86q2Fp5z16lDVNR2Qc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791909234-smgBeTbuloDFFxjAyENr"
upstream_id"cl3Oar_pF9ud1MkPoYWxiQg"
provider_responses
0
endpoint_id"4934736c-d662-4fe3-98eb-56def8c8c174"
id"cl3Oar_pF9ud1MkPoYWxiQg"
is_byokfalse
latency2231
model_permaslug"google/gemini-4-argon-20261013"
provider_name"Google AI Studio"
status200
total_cost0.017856
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