NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-11-18-01KACPA8FQG7TKQTMT2WHVMJAB
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 hazy, yellow gleam. A lone cloaked figure hurried across the deserted plaza, head bowed against the wind. The carriage wheels left dark, wet streaks upon the ancient, cobbled street. Inside the dusty parlor, the grandfather clock maintained its rhythmic, heavy ticking. Lord Ashworth lay motionless on the Persian rug, a crimson stain blooming beneath him. The ornate dagger was still clutched firmly in his cold, pallid, stiffening hand. His final, wide-eyed stare was fixed upon the flickering fireplace's dying embers. A faint, sweet almond scent lingered, barely detectable, near the liquor decanter. Footsteps echoed loudly, rapidly ascending the creaky, spiral mahogany staircase. A hushed gasp escaped Lady Eleanor's lips as she entered the grim scene. Her trembling hand flew to her mouth, stifling a sudden, horrified, piercing scream. The butler, Mr. Jeeves, remained impassive, holding a silver, empty serving tray. Detective Inspector Finch surveyed the room, his keen eyes missing no minute details. He pulled out a small notebook, ready to begin his methodical investigation.
created_at
"2025-11-18T23:55:35.80762+00:00"
Tuesday, November 18th, 2025 at 11:55:35 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
267
moderation_latency
(null)
generation_time
1940
tokens_prompt
42
tokens_completion
250
native_tokens_prompt
38
native_tokens_completion
242
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
0.0006164
api_type
"completions"
id
"gen-1763510133-gKJvQoX9kn1DIGDD07O7"
upstream_id
(null)
total_cost
0.0006164
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
14
wordCounts
0
11
1
14
2
12
3
12
4
14
5
13
6
13
7
12
8
10
9
13
10
13
11
12
12
13
13
12