Run: 2026-07-25-01KYCWSG7013E9A9QJ9W92STW3

Run Details

Model:
Gemini 3.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
786ms
Cost:
$0.000219
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
19.10% 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
Detective Vance stared at the cold body lying motionless beneath the heavy chandelier inside the darkened library. Rain lashed violently against the tall Victorian windows while distant thunder rattled the ancient floorboards beneath his shoes. A single silver dagger protruded sharply from the victim's chest, gleaming menacingly under the faint, flickering candlelight. Everyone in the grand estate possessed a dark motive, and nobody could leave until he solved this bloody crime.
created_at"2026-07-25T15:02:40.618Z" 7/25/2026, 3:02:40 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency259
moderation_latency(null)
generation_time745
tokens_prompt46
tokens_completion121
native_tokens_prompt38
native_tokens_completion83
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"
usage0.0002189
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"ENBkat2WKOf0jrEPhp-ugA0"
is_byokfalse
latency259
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-1784991760-7Is28NDkbG681E2nVL6t"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784991760-LxZ4KFht5Q4hal8Oz6DO"
upstream_id"ENBkat2WKOf0jrEPhp-ugA0"
total_cost0.0002189
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
19.10% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
017
118
217
319