Run: 2026-10-13-01M4V1ZYZGYDYD6MN7PSXERDQS

Run Details

Duration:
22.6s
Cost:
$0.023926
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 tall gothic windows of Blackwood Manor while Detective Miller examined the cold body on the rug. Wealthy Lord Harrington lay motionless in a pool of dark crimson blood with a sharp silver dagger in his chest. The heavy antique grandfather clock in the dark corner had stopped ticking at precisely midnight when the deadly struggle occurred. Every single wooden door and window had been bolted tightly from the inside before the young housemaid heard the scream. Miller quickly noticed a fresh muddy footprint near the fireplace that certainly did not belong to the dead old aristocrat. Five very nervous guests waited quietly downstairs in the parlor, and one of them was definitely a clever, ruthless killer.
created_at"2026-10-13T16:37:08.221Z" 10/13/2026, 4:37:08 PM
model"google/gemini-4-argon-20261013"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3456
moderation_latency(null)
generation_time22534
tokens_prompt46
tokens_completion672
native_tokens_prompt68
native_tokens_completion2379
native_tokens_completion_images0
native_tokens_reasoning2243
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)
usage0.023926
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791909428-GWarBkgPPI1UKH6VewGG"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791909428-1Jql8qQ4wbPNkldTEdQz"
upstream_id"NF7Oat2tEuuRjrEPjYLc0Ao"
provider_responses
0
endpoint_id"4934736c-d662-4fe3-98eb-56def8c8c174"
id"NF7Oat2tEuuRjrEPjYLc0Ao"
is_byokfalse
latency3456
model_permaslug"google/gemini-4-argon-20261013"
provider_name"Google AI Studio"
status200
total_cost0.023926
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