Run: 2026-07-25-01KYCV60T4FZG9F7Q7Q98RPRJC

Run Details

Duration:
896ms
Cost:
$0.000254
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
80.56% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Cold winter rain lashed against the frosted library window panes. Lord Blackwood sat motionless in his grand leather armchair. A silver dagger protruded from his expensive velvet waistcoat. Tick-tock went the antique clock upon the mahogany mantelpiece. Empty champagne glasses lay scattered across the polished oak floor. Detective Vance stepped carefully over the heavy crimson threshold. Shadows danced eerily across the rows of dusty books. Someone had locked every single door from the inside.
created_at"2026-07-25T14:34:33.68Z" 7/25/2026, 2:34:33 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency311
moderation_latency(null)
generation_time790
tokens_prompt46
tokens_completion127
native_tokens_prompt38
native_tokens_completion97
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"
usage0.0002539
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"eclkateeMbHZjMcPx6fa4QY"
is_byokfalse
latency311
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-1784990073-X0PoRCL7Q1dW0lusu5WN"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784990073-bhoq8fy5lZxxYlvU5O5U"
upstream_id"eclkateeMbHZjMcPx6fa4QY"
total_cost0.0002539
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
80.56% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
19
29
39
410
59
69
79