Run: 2026-10-13-01M4V1VEJJE521MT9907D7YH4V

Run Details

Duration:
16.7s
Cost:
$0.020686
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
The heavy velvet curtains could not hide the gruesome sight waiting for Detective Miller inside the dimly lit Victorian library. Lord Blackwood lay sprawled across the Persian rug with an antique silver letter opener buried deep within his silent chest. Outside the tall glass windows, a violent thunderstorm raged while crimson blood slowly pooled beneath his pale and lifeless fingers. Every single door had been bolted securely from the inside, leaving no obvious escape route for the clever midnight assassin. Miller knelt beside the wealthy victim and noticed a mysterious folded note clutched tightly inside his other stiffened left hand. Seven terrified guests waited downstairs in the grand parlor, and one of them was hiding a truly deadly dark secret.
created_at"2026-10-13T16:34:40.354Z" 10/13/2026, 4:34:40 PM
model"google/gemini-4-argon-20261013"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2391
moderation_latency(null)
generation_time16669
tokens_prompt46
tokens_completion676
native_tokens_prompt68
native_tokens_completion2055
native_tokens_completion_images0
native_tokens_reasoning1919
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)
usage0.020686
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791909280-0jvlXfEEqKzZE4CnxzXS"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791909280-BFmqwODEIUKCVf1BlI1V"
upstream_id"oF3OaunaGoy__PUPmfyywQY"
provider_responses
0
endpoint_id"4934736c-d662-4fe3-98eb-56def8c8c174"
id"oF3OaunaGoy__PUPmfyywQY"
is_byokfalse
latency2372
model_permaslug"google/gemini-4-argon-20261013"
provider_name"Google AI Studio"
status200
total_cost0.020686
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