Run: 2026-05-10-01KR90NS9TK066TPARJ3C69REA

Run Details

Duration:
1.0s
Cost:
$0.000150
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
100.00% 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
The midnight rain hammered against the arched window while Arthur lay perfectly still across the cold and polished oak floor. A single silver letter opener protruded from his chest, gleaming under the pale light of the flickering yellow desk lamp. Footsteps echoed softly through the hollow marble hallway, signaling that the mysterious killer had not yet departed the quiet estate. I clutched a heavy brass key tightly within my trembling palm, praying that the shadows would hide my shivering frame.
created_at"2026-05-10T13:19:24.481Z" 5/10/2026, 1:19:24 PM
model"google/gemini-3.1-flash-lite-20260507"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency419
moderation_latency(null)
generation_time931
tokens_prompt46
tokens_completion128
native_tokens_prompt38
native_tokens_completion94
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"standard"
usage0.0001505
router(null)
provider_responses
0
endpoint_id"237af107-d2e9-46c7-b146-c74d75980dee"
id"3IUAaq_tK4qI6dkP59-msAQ"
is_byokfalse
latency419
model_permaslug"google/gemini-3.1-flash-lite-20260507"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1778419164-Q8ZylvxOrdDKhBc6X2rp"
session_id(null)
api_type"completions"
id"gen-1778419164-L5dtmID0WUaOVMwyzlxA"
upstream_id"3IUAaq_tK4qI6dkP59-msAQ"
total_cost0.0001505
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
020
120
220
320