Run: 2026-07-25-01KYCWBHDC17B30ZGAEQDBW9QP

Run Details

Duration:
9.4s
Cost:
$0.018417
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
Cold rain lashed against the tall stained glass windows of Lord Blackwood’s grand library, casting long shadows across his corpse. A single crimson pool bloomed beneath his pale chest where an antique silver letter opener was buried very deeply indeed. Detective Miller stepped carefully over the velvet rug, her sharp eyes scanning the polished mahogany desk for any remaining clues. Beside the half melted candle sat a charred letter that still smelled faintly of bitter almond and expensive floral perfume. Someone inside this locked manor had committed the perfect crime, but they had left behind one very fatal mistake tonight.
created_at"2026-07-25T14:55:03.091Z" 7/25/2026, 2:55:03 PM
model"google/gemini-3.6-flash-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1414
moderation_latency(null)
generation_time9324
tokens_prompt46
tokens_completion827
native_tokens_prompt38
native_tokens_completion2448
native_tokens_completion_images0
native_tokens_reasoning2336
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"
usage0.018417
router(null)
provider_responses
0
endpoint_id"5d6d133d-a953-4781-a835-7ee76f4e1388"
id"R85kasOnCbrwjMcPk7_W0A8"
is_byokfalse
latency1414
model_permaslug"google/gemini-3.6-flash-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-1784991303-2pHTd8JpGCeN0HWdRyFi"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784991303-BabreoXFoQdbbG0EwwCv"
upstream_id"R85kasOnCbrwjMcPk7_W0A8"
total_cost0.018417
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
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420