Run: 2026-07-25-01KYCTCFAZEXP73SW5S5A7JGXE

Run Details

Duration:
705ms
Cost:
$0.000179
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
60.65% 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
Rain fell heavily across the dark estate while Inspector Vance approached the grand mansion with slow and cautious footsteps. Inside the freezing library, the wealthy victim sat slumped over his mahogany desk with a silver dagger protruding from his chest. Everyone in the suspicious household possessed a strong motive to commit this terrible crime before the midnight hour struck.
created_at"2026-07-25T14:20:36.583Z" 7/25/2026, 2:20:36 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency262
moderation_latency(null)
generation_time628
tokens_prompt46
tokens_completion98
native_tokens_prompt38
native_tokens_completion67
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"
usage0.0001789
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"NMZkatq1KYGZ-8YP4orpuQk"
is_byokfalse
latency262
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-1784989236-bD4S8A8PUCSVZ985DfvV"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784989236-3v6jX1gqJogaotqdlcek"
upstream_id"NMZkatq1KYGZ-8YP4orpuQk"
total_cost0.0001789
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
60.65% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
019
121
219