Run: 2026-07-25-01KYCX8T2HF8XB7YTKVRMNP7ET

Run Details

Duration:
870ms
Cost:
$0.000121
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 autumn rain lashed against the tall stained glass windows while wealthy guests whispered anxiously inside the grand Victorian parlor. Detective Vance stared down at the lifeless billionaire whose expensive pocket watch had stopped precisely at the stroke of midnight.
created_at"2026-07-25T15:11:02.234Z" 7/25/2026, 3:11:02 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency339
moderation_latency(null)
generation_time627
tokens_prompt46
tokens_completion70
native_tokens_prompt38
native_tokens_completion44
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"
usage0.0001214
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"BtJkauztIZf1jrEPyo-3kAs"
is_byokfalse
latency339
model_permaslug"google/gemini-3.5-flash-lite-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-1784992262-qQlekG6v9nz8HXfLZJDX"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784992262-MvqtAOhdUvsvaTY7pqux"
upstream_id"BtJkauztIZf1jrEPyo-3kAs"
total_cost0.0001214
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
100.00% Matches word count n/a
neededCleanfalse
sentences2
wordCounts
020
120