Run: 2026-05-19-01KS0V89H70S8M8R3AH83QM3YC

Run Details

Duration:
19.1s
Cost:
$0.044553
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
A cold rain fell on the old mansion where Lord Blackwood lay dead with a silver knife in his chest. Inspector Vance stared at the body, noticing the strange way the limp cold fingers pointed toward the grand mahogany desk. A single glass of golden whiskey sat untouched nearby, while a freezing wind blew fiercely through the shattered terrace doors. No one in this isolated mansion had heard the brief struggle, yet every guest possessed a very dangerous dark secret. The detective picked up a bloody pocket watch from the cold floor, realizing that the clever killer was still inside.
created_at"2026-05-19T19:26:25.836Z" 5/19/2026, 7:26:25 PM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1386
moderation_latency(null)
generation_time18962
tokens_prompt46
tokens_completion2108
native_tokens_prompt38
native_tokens_completion4944
native_tokens_completion_images0
native_tokens_reasoning4834
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"
usage0.044553
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"YbkMauH_O-yOjMcPlq_iOQ"
is_byokfalse
latency1386
model_permaslug"google/gemini-3.5-flash-20260519"
provider_name"Google AI Studio"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.15.0; linux; x64))"
http_referer(null)
request_id"req-1779218785-hpmhiCnPgb0Q38sWiM1j"
session_id(null)
api_type"completions"
id"gen-1779218785-6tCvWsUIfrDzXsXzSp8H"
upstream_id"YbkMauH_O-yOjMcPlq_iOQ"
total_cost0.044553
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