Run: 2026-05-19-01KS0V6DP913FG9TP90Y377HGT

Run Details

Duration:
10.9s
Cost:
$0.023547
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 beat relentlessly against the tall glass windows of Blackwood Manor as the dark grandfather clock struck midnight. Lord Sebastian lay perfectly still upon the Persian rug in his study, a silver letter opener protruding from his chest. A dark circle of expensive red wine spilled from his fallen glass, slowly soaking into the beautifully woven wool fibers. Lady Eleanor stood frozen in the open doorway, her gloved hands trembling violently as she stared at the tragic scene. The embers in the fireplace cast long shadows across the room, obscuring the silent figure who watched from the balcony. She opened her mouth to scream, but a cold leather glove suddenly gripped her shoulder, ensuring her silence remained absolute.
created_at"2026-05-19T19:25:24.602Z" 5/19/2026, 7:25:24 PM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1621
moderation_latency(null)
generation_time10789
tokens_prompt46
tokens_completion821
native_tokens_prompt38
native_tokens_completion2610
native_tokens_completion_images0
native_tokens_reasoning2475
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"
usage0.023547
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"JLkMaomCLqWM_PUPsoXpwAM"
is_byokfalse
latency1620
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-1779218724-KhBYsrL6KCnd2b7WsSDo"
session_id(null)
api_type"completions"
id"gen-1779218724-SwknzDyMcO2IgcTDXheD"
upstream_id"JLkMaomCLqWM_PUPsoXpwAM"
total_cost0.023547
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
sentences6
wordCounts
020
120
220
320
420
520