NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-11-18-01KACP83YHDJMNT50P3AZYPR9V
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
The rain lashed against the grimy windowpanes, a relentless October downpour. Inside, dust motes danced in the single lamp’s glow, illuminating the antique parlor. Lord Ashworth lay sprawled across the Persian rug, unmoving and pale. A crimson stain bloomed on his immaculate tweed jacket, stark against the fabric. His silver spectacles had fallen near his aristocratic hand, glinting dully there. Miss Eleanor Vance stood rigid by the cold fireplace, clutching a velvet shawl. Her wide eyes darted from the body to the intricate, silent grandfather clock. Fear tightened its cold grip around her slender throat, a silent scream. The faint scent of burnt almonds hung heavy in the opulent, airless room. This wasn't a tragic accident; it was a deliberate, brutal killing.
created_at
"2025-11-18T23:54:25.055321+00:00"
Tuesday, November 18th, 2025 at 11:54:25 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
490
moderation_latency
(null)
generation_time
1452
tokens_prompt
42
tokens_completion
177
native_tokens_prompt
38
native_tokens_completion
171
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
0.0004389
api_type
"completions"
id
"gen-1763510063-ucVG9l2nsIYMF2HUh6Jp"
upstream_id
(null)
total_cost
0.0004389
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
11
1
13
2
11
3
13
4
12
5
13
6
13
7
12
8
13
9
11