Run: 2026-09-02-01M1HJNCB069EAWSXJ8CWW9FCW

Run Details

Duration:
6.6s
Cost:
$0.007937
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
Thunder rattled the stained glass windows of Blackwood Manor while cold autumn rain lashed violently against the ancient stone walls. Inside the shadowy library, Lord Harrington slumped lifeless across his mahogany desk, crimson blood dripping onto an unfinished last will. A heavy silver letter opener protruded sharply from his velvet coat, gleaming menacingly under the flickering glow of dying embers. The trembling butler dropped his polished tea tray, gasping in sheer horror as shattered porcelain scattered across the Persian rug. Behind him, the heavy oak door clicked shut abruptly, leaving six terrified guests trapped in darkness with a cunning killer.
created_at"2026-09-02T17:28:57.448Z" 9/2/2026, 5:28:57 PM
model"google/gemini-3.8-flash-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1425
moderation_latency(null)
generation_time6548
tokens_prompt46
tokens_completion787
native_tokens_prompt38
native_tokens_completion2109
native_tokens_completion_images0
native_tokens_reasoning1994
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"
usage0.00793725
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788370137-T0R3FGHEhubVqEe84MPi"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788370137-LvrqIdJuQS4cELjd1MM8"
upstream_id"2VyYarGQIeSN_PUP2q3TUA"
provider_responses
0
endpoint_id"d376f781-516d-42f9-936d-46f19abca6cc"
id"2VyYarGQIeSN_PUP2q3TUA"
is_byokfalse
latency1425
model_permaslug"google/gemini-3.8-flash-20260902"
provider_name"Google AI Studio"
status200
total_cost0.00793725
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420