Run: 2026-02-25-01KJ94KN29F475YZVCCSW4QEZ7

Run Details

Duration:
6.7s
Cost:
$0.003719
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
0.12% 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
Detective Miles Corbin pushed open the heavy oak doors, entering the grand, silent, opulent foyer just now. A uniformed officer stood by the staircase, his face grim, awaiting further instruction solemnly there. He gestured toward the drawing room where the ghastly discovery had been made only hours ago. Corbin felt the familiar knot tighten in his stomach, a premonition of darkness always arriving soon. The smell of expensive perfume and something metallic assailed his senses very quickly inside here. Lord Harrington lay sprawled beside the antique fireplace, his silk smoking jacket stained dark now. A heavy bronze statue, a fallen angel, rested dangerously close to his lifeless head there. The room itself appeared undisturbed, displaying no signs of a struggle whatsoever, quite surprisingly. "An inside job," Corbin murmured, his gaze sweeping over the silent, opulent surroundings carefully. Who among these gilded walls possessed such a cold, calculating heart and motive, he wondered?
created_at"2026-02-25T00:53:57.967Z" 2/25/2026, 12:53:57 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1228
moderation_latency(null)
generation_time6619
tokens_prompt46
tokens_completion943
native_tokens_prompt38
native_tokens_completion1483
native_tokens_completion_images0
native_tokens_reasoning1301
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"
usage0.0037189
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1228
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771980837-Ldgi14RMgQWRWhWEFcdM"
upstream_id(null)
total_cost0.0037189
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
0.12% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
017
115
216
316
415
515
615
714
814
915