Run: 2026-07-25-01KYCT3VGEE58KNZZQTAPP1B8W

Run Details

Duration:
894ms
Cost:
$0.000229
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
48.87% 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 beat heavily against the stained glass window while Inspector Vance examined the cold body lying on the floor. Silver moonlight illuminated the grand library where Lord Blackwood finally met his untimely end amid scattered ancient dusty books. A sharp silver dagger protruded awkwardly from his velvet chest while crimson blood slowly soaked the expensive Persian rug. Nobody could have entered this locked chamber because all heavy oak doors remained firmly bolted from the inside.
created_at"2026-07-25T14:15:54.135Z" 7/25/2026, 2:15:54 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency269
moderation_latency(null)
generation_time800
tokens_prompt46
tokens_completion125
native_tokens_prompt38
native_tokens_completion87
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"
usage0.0002289
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"GsVkao-pENPI-8YPz8CHiAo"
is_byokfalse
latency269
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-1784988954-5GulQE8hQrI1MMRq15bh"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784988954-vPtDcJyRnzMXvI3FWjN2"
upstream_id"GsVkao-pENPI-8YPz8CHiAo"
total_cost0.0002289
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
48.87% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
019
119
219
318