Run: 2026-02-19-01KHVP11BYG9A032NPCQPX8BWD

Run Details

Duration:
1m 2s
Cost:
$0.061348
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
Heavy rain washed the crimson blood across the dark cobblestone street as the distant thunder masked the approaching footsteps perfectly. Detective Vance stared down at the cold lifeless body of wealthy industrialist Arthur Pendelton lying awkwardly near a broken lamppost. A sharp silver dagger with an ornate handle protruded from his chest right above his expensive custom silk dinner jacket. Nobody could ever explain why the notoriously paranoid billionaire decided to walk through this dangerous neighborhood completely alone past midnight. Vance crouched quietly beside the victim and noticed a small torn piece of yellow paper clutched inside one stiff hand. The damp scrap contained merely three handwritten letters that would eventually unravel the greatest political conspiracy in modern city history. Sirens wailed wildly in the distance when a mysterious woman wearing a gorgeous velvet coat stepped out from the shadows. She blew smoke from her long cigarette while looking at the gruesome scene without showing any obvious emotion or fear. Before Vance could ask her name she simply smiled and pointed toward a bloody footprint leading into the dark alleyway.
created_at"2026-02-19T19:29:00.131Z" 2/19/2026, 7:29:00 PM
model"google/gemini-3.1-pro-preview-20260219"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3724
moderation_latency(null)
generation_time61971
tokens_prompt46
tokens_completion1636
native_tokens_prompt38
native_tokens_completion5106
native_tokens_completion_images0
native_tokens_reasoning4905
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"STOP"
usage0.061348
router(null)
provider_responses
0
endpoint_id"2abf5677-0826-45d9-8470-3d62c31d54a1"
is_byokfalse
latency3724
model_permaslug"google/gemini-3.1-pro-preview-20260219"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771529340-rSpwINbk217RPDZzB2Yj"
upstream_id(null)
total_cost0.061348
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences9
wordCounts
020
120
220
320
420
520
620
720
820