Run: 2026-09-02-01M1HJC7V5XZG62ZYQ39J50ET1

Run Details

Duration:
10.0s
Cost:
$0.010326
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 grandfather clock struck midnight with a hollow chime as heavy autumn rain battered against the dark, shuttered library windows. Lord Harrington lay motionless across his mahogany desk, a silver letter opener protruding sharply from his ornate, embroidered velvet waistcoat. Dark crimson blood dripped slowly onto the Persian rug below, pooling around a shattered crystal glass of vintage French brandy. Standing frozen in the doorway, the butler dropped his heavy brass candelabra, watching the flickering flames die upon the floor. Beside that limp, lifeless hand, an unburned scrap of scorched paper revealed only three cryptic numbers written in black charcoal.
created_at"2026-09-02T17:23:57.958Z" 9/2/2026, 5:23:57 PM
model"google/gemini-3.8-flash-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2687
moderation_latency(null)
generation_time9839
tokens_prompt46
tokens_completion986
native_tokens_prompt38
native_tokens_completion2746
native_tokens_completion_images0
native_tokens_reasoning2628
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"
usage0.010326
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788369837-E4LhgDvZDeXTdb7Kj5N2"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788369837-HREyHIhNtYxF8BrPp8I0"
upstream_id"rluYapDBBuet_PUP9_-oyA8"
provider_responses
0
endpoint_id"d376f781-516d-42f9-936d-46f19abca6cc"
id"rluYapDBBuet_PUP9_-oyA8"
is_byokfalse
latency2687
model_permaslug"google/gemini-3.8-flash-20260902"
provider_name"Google AI Studio"
status200
total_cost0.010326
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