Run: 2026-05-10-01KR90XQF09N0SWAM0EK940QRY

Run Details

Duration:
1.2s
Cost:
$0.000188
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 heavy rain drummed rhythmically against the fogged window while the clock struck midnight in the cold and silent library. Lord Harrington lay slumped across his mahogany desk with a silver letter opener protruding from his pale and stiff back. A single candle flickered near his lifeless hand, casting long and twisted shadows across the rows of dusty old books. The heavy scent of metallic blood mixed with the bitter aroma of spilled brandy dampened the air of this room. Nobody had entered the study since dinner, yet the window latch remained open to the harsh and howling winter wind.
created_at"2026-05-10T13:23:44.742Z" 5/10/2026, 1:23:44 PM
model"google/gemini-3.1-flash-lite-20260507"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency567
moderation_latency(null)
generation_time1061
tokens_prompt46
tokens_completion157
native_tokens_prompt38
native_tokens_completion119
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"
usage0.000188
router(null)
provider_responses
0
endpoint_id"237af107-d2e9-46c7-b146-c74d75980dee"
id"4IYAaoeeOtznz7IPpNyL4QI"
is_byokfalse
latency566
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-1778419424-yk8J4CNl0JV1brX0BbzN"
session_id(null)
api_type"completions"
id"gen-1778419424-HSjbSZF2mAjrknIubxqy"
upstream_id"4IYAaoeeOtznz7IPpNyL4QI"
total_cost0.000188
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
sentences5
wordCounts
020
120
220
320
420