Run: 2026-07-25-01KYCYKEJCQG87Q4EYBV5A41T2

Run Details

Model:
Gemini 3.5 Flash Lite (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
735ms
Cost:
$0.000161
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
25.10% 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
Heavy rain pounded against the gothic mansion while terrified guests whispered frantically about the sudden disappearance of Lord Blackwood. Detective Vance examined the bloody dagger lying beside the velvet curtains in the freezing, dimly lit library. Lightning flashed across the stormy night sky, illuminating the terrifying crimson stains dripping slowly down the antique wallpaper.
created_at"2026-07-25T15:34:19.474Z" 7/25/2026, 3:34:19 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency280
moderation_latency(null)
generation_time658
tokens_prompt46
tokens_completion97
native_tokens_prompt38
native_tokens_completion60
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"
usage0.0001614
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"e9dkarSnIteGjrEPmNmZ0Ak"
is_byokfalse
latency280
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-1784993659-tsSEYux1DavAVhe6ZVd9"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784993659-hRzBdOCvV6WBQmJWVKMX"
upstream_id"e9dkarSnIteGjrEPmNmZ0Ak"
total_cost0.0001614
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
25.10% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
019
117
218