NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-11-18-01KACP3AYBPCDH0TZA2RBN30R9
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 slicked the grimy cobblestones, reflecting the gaslight's flickering glow like a broken mirror. A piercing scream shattered the somber twilight, echoing through the narrow, desolate alleyway. Detective Elliot Vance, a man weathered by unspoken sorrow, quickened his deliberate pace toward the unfolding chaos. He adjusted his worn trench coat, its familiar weight a comfort against the chill of approaching night. The acrid scent of cheap whiskey and something distinctly metallic hung heavy in the damp, frigid air. Vance’s gaze fell upon a huddled, motionless figure sprawled awkwardly beside an overflowing refuse bin. Crimson flowered across the pristine white shirt, stark against the darkening puddles on the ancient stone. A single, ornate silver locket lay discarded nearby, glinting dully in the encroaching shadows. The detective knelt, his practiced eyes immediately scanning for any telling details or overlooked clues. Another night, another life extinguished too soon, another mystery demanding its painful, unavoidable resolution.
created_at
"2025-11-18T23:51:48.545607+00:00"
Tuesday, November 18th, 2025 at 11:51:48 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
303
moderation_latency
(null)
generation_time
1681
tokens_prompt
42
tokens_completion
220
native_tokens_prompt
38
native_tokens_completion
209
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
0.0005339
api_type
"completions"
id
"gen-1763509906-urzrVcDGiDXmje34Aofw"
upstream_id
(null)
total_cost
0.0005339
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
0.3367%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
14
1
13
2
17
3
17
4
17
5
15
6
16
7
14
8
15
9
14