Run: 2026-07-25-01KYCSNZ2A5AR9J8PX6T9HCTXS

Run Details

Duration:
579ms
Cost:
$0.000124
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
80.33% 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 battered the dark gothic mansion while Detective Vance stared coldly at the bloody corpse lying upon the Persian rug. Heavy thunder shook the rattling windows as frightened servants whispered nervously among themselves near the grand staircase in the shadowed hallway.
created_at"2026-07-25T14:08:19.025Z" 7/25/2026, 2:08:19 PM
model"google/gemini-3.5-flash-lite-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency272
moderation_latency(null)
generation_time530
tokens_prompt46
tokens_completion70
native_tokens_prompt38
native_tokens_completion45
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"
usage0.0001239
router(null)
provider_responses
0
endpoint_id"6bd8f433-79e1-416c-b407-1772eb796c9a"
id"U8NkapKrBZOb-8YPuJ6h2Qk"
is_byokfalse
latency272
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-1784988499-NAfrofAhGpfq9bGjgjAs"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784988499-dQK5qxcy8aAY2hhUW7Ta"
upstream_id"U8NkapKrBZOb-8YPuJ6h2Qk"
total_cost0.0001239
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
80.33% Matches word count n/a
neededCleanfalse
sentences2
wordCounts
020
121