Model

Gemini 2.5 Flash

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-11-18-01KACPBWFPNQZM1EYHVT3YV41B

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 leaded panes of Blackwood Manor, a fitting curtain. Colonel Alistair Finch’s body slumped in the mahogany armchair, quite lifeless now. A single, crimson stain blossomed on his pristine white dinner jacket, truly stark. Inspector Thomas Mallory surveyed the grim scene, his experienced gaze unwavering and sharp. He noted the overturned brandy snifter on the Persian rug, a shattered, clear vessel. The grandfather clock in the hall chimed midnight, its sonorous tone echoing ominously. Mallory carefully adjusted his spectacles, a gesture of deep thought and slow deliberation. This was no ordinary heart attack; a much darker hand had been at work. He felt the familiar chill of a new puzzle, a complex and intricate challenge. The perfect quiet of the room enveloped him, a shroud over hidden malice.
created_at"2025-11-18T23:56:28.972809+00:00" Tuesday, November 18th, 2025 at 11:56:28 PM GMT+00:00
model"google/gemini-2.5-flash" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency284
moderation_latency(null)
generation_time1498
tokens_prompt42
tokens_completion185
native_tokens_prompt38
native_tokens_completion173
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)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"STOP" 
usage0.0004439
api_type"completions" 
id"gen-1763510186-PiFxGwOoNzYcWUZoh4r7" 
upstream_id(null)
total_cost0.0004439
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
0.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
012
112
213
313
414
513
613
714
814
913