Run: 2026-07-25-01KYCTRCPKRTN2PW3N53Q0YXW3

Run Details

Duration:
699ms
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
Heavy rain battered the dark Victorian mansion while Inspector Vance examined the cold corpse lying upon the library floor. Silver moonlight briefly illuminated the shattered window, revealing muddy footprints that led directly toward the locked wooden balcony door. Everyone gathered inside the drawing room possessed a dark motive for ending the wealthy philanthropist's miserable and complicated life.
created_at"2026-07-25T14:27:07.103Z" 7/25/2026, 2:27:07 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency290
moderation_latency(null)
generation_time639
tokens_prompt46
tokens_completion103
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"u8dkao2NC9fC-sAPtvmUgAw"
is_byokfalse
latency290
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-1784989627-nQzq0I6opQ4MxlLdsTro"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784989627-NLYf8esb7fOyGqxadYzx"
upstream_id"u8dkao2NC9fC-sAPtvmUgAw"
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
119
219