NC Bench
Overview
About
Tests
Models
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
Messages
Meta
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_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
284
moderation_latency
(null)
generation_time
1498
tokens_prompt
42
tokens_completion
185
native_tokens_prompt
38
native_tokens_completion
173
native_tokens_completion_images
0
native_tokens_reasoning
0
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
usage
0.0004439
api_type
"completions"
id
"gen-1763510186-PiFxGwOoNzYcWUZoh4r7"
upstream_id
(null)
total_cost
0.0004439
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
0.0000%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
12
1
12
2
13
3
13
4
14
5
13
6
13
7
14
8
14
9
13