Run: 2026-07-25-01KYCXQ8MARRV6F2SW7CEZEQSY

Run Details

Model:
Gemini 3.5 Flash Lite (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
713ms
Cost:
$0.000191
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
86.88% 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 lashed against the dusty stained glass windows while Detective Miller inspected the cold body lying on the oriental rug. A silver antique pocket watch ticked loudly on the mahogany desk, marking the exact moments of a truly tragic midnight demise. Shadows danced nervously across the ancient library walls as nervous thunder rumbled heavily through the dark and unforgiving English countryside.
created_at"2026-07-25T15:18:55.891Z" 7/25/2026, 3:18:55 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency358
moderation_latency(null)
generation_time652
tokens_prompt46
tokens_completion102
native_tokens_prompt38
native_tokens_completion72
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"
usage0.0001914
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"39Nkatn3ObOA-8YP3v3h4QU"
is_byokfalse
latency358
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-1784992735-jVgCFaYl3teiXYSW9ZoQ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784992735-RAjhrIGHIcogVl3MtXau"
upstream_id"39Nkatn3ObOA-8YP3v3h4QU"
total_cost0.0001914
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
86.88% Matches word count n/a
neededCleanfalse
sentences3
wordCounts
020
121
220