NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-11-18-01KACPBXC2QD7N2NB6QNCQQ1Y8
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 glow. A chilling breeze sliced through the alley, carrying the stench of stale beer and decay. Detective Miles Harding, a man worn by grief, clenched his jaw tightly. The call had arrived, urgent and grim, signaling another nocturnal tragedy. He pushed open the heavy iron gate, its rusty hinges groaning loudly. Beyond lay the scene, undoubtedly a fresh canvas of human depravity. A solitary figure stood there already, hunched beneath a large, black umbrella. This was always the worst part, that initial confrontation with the lifeless. Miles took a deep, fortifying breath, bracing for the inevitable horror. Another soul had departed this miserable world, violently and without mercy.
created_at
"2025-11-18T23:56:29.242695+00:00"
Tuesday, November 18th, 2025 at 11:56:29 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
254
moderation_latency
(null)
generation_time
1205
tokens_prompt
42
tokens_completion
168
native_tokens_prompt
38
native_tokens_completion
161
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
0.0004139
api_type
"completions"
id
"gen-1763510187-qMEXUIJVVpnuI1sKLwlo"
upstream_id
(null)
total_cost
0.0004139
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
15
2
12
3
11
4
12
5
11
6
12
7
12
8
11
9
11