Run: 2026-05-19-01KS0TJPZY7FFJ2NS0HBE9V1MG

Run Details

Duration:
16.9s
Cost:
$0.040080
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
Rain lashed against the tall, stained glass windows of Blackwood Manor as Detective Miller stared at the bloody Persian rug. Lord Harrington lay face down in a pool of dark crimson blood, his silver pocket watch ticking very slowly nearby. The grandfather clock in the dim corner had stopped at exactly ten minutes past midnight, right when the lightning struck. A delicate smell of bitter almonds lingered in the cold room, suggesting that the rich old man was indeed poisoned. Near his lifeless hand, a torn paper scrap revealed a highly secret message written in smeared, dark black fountain ink. Miller knelt carefully to inspect the writing, knowing that everyone in this grand house had a motive for the murder. Suddenly, a loud scream echoed from the dark hallway upstairs, and the heavy front door of the mansion slammed shut.
created_at"2026-05-19T19:14:38.724Z" 5/19/2026, 7:14:38 PM
model"google/gemini-3.5-flash-20260519"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1443
moderation_latency(null)
generation_time16798
tokens_prompt46
tokens_completion1483
native_tokens_prompt38
native_tokens_completion4447
native_tokens_completion_images0
native_tokens_reasoning4290
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"
usage0.04008
router(null)
provider_responses
0
endpoint_id"bd50061c-e1d8-469e-96b1-d322e77378f8"
id"nrYMavboNd-d_uMP_uqesAY"
is_byokfalse
latency1443
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-1779218078-8lWAlrpArhLIZLHTnmNl"
session_id(null)
api_type"completions"
id"gen-1779218078-MZGara7pJnxgBa048uS5"
upstream_id"nrYMavboNd-d_uMP_uqesAY"
total_cost0.04008
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
sentences7
wordCounts
020
120
220
320
420
520
620