Run: 2026-07-25-01KYCWW461W698DNFNEA45X5NW

Run Details

Duration:
2.1s
Cost:
$0.001190
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
77.52% 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 lashed against the tall stained glass windows of the silent library, washing away the blood dripping down the door. Lord Reginald sat slouched inside his favorite leather armchair with a heavy brass letter opener buried deep within his chest. The smell of bitter almonds lingered softly around his motionless body, mingling with the rich scent of expensive tobacco smoke. Outside, a sharp flash of blue lightning illuminated the shadowy room, casting long dancing ghosts across the mahogany bookshelves. Detective Miller stepped over the ornate velvet rug carefully, his dark eyes taking in every single detail of violence. He pulled a silver pocket watch from his damp coat, noting the exact time that another murder had occurred. Someone in this isolated country manor was a ruthless killer, and nobody would be allowed to leave until dawn.
created_at"2026-07-25T15:04:06.603Z" 7/25/2026, 3:04:06 PM
model"google/gemini-3.6-flash-20260721"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency811
moderation_latency(null)
generation_time1971
tokens_prompt46
tokens_completion212
native_tokens_prompt38
native_tokens_completion151
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"
usage0.0011895
router(null)
provider_responses
0
endpoint_id"5d6d133d-a953-4781-a835-7ee76f4e1388"
id"ZtBkaoPXKL3N-sAPu6P5wAs"
is_byokfalse
latency811
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-1784991846-VoiekRo0yDiy4AVnlsBg"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784991846-VxhAfPr8t0Qezxfk1xnX"
upstream_id"ZtBkaoPXKL3N-sAPu6P5wAs"
total_cost0.0011895
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
77.52% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
319
419
519
619