NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 5 words each
Run ID
2025-11-18-01KACP6WX48YAS1DGRXRZQYXJE
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Rain slicked the city street. A body lay still there. Blood bloomed on the cold ground. Detective Miles approached the scene slowly. His breath made a pale cloud. A chill wind bit his face. Sergeant Miller stood by the corpse. “It’s a nasty one, sir.” The victim wore a fine suit. His eyes stared at the sky. A single ornate pen lay. It was clutched in his hand. Miles knelt, examining the object. This was more than robbery. This was a clear message.
created_at
"2025-11-18T23:53:44.778643+00:00"
Tuesday, November 18th, 2025 at 11:53:44 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
496
moderation_latency
(null)
generation_time
1200
tokens_prompt
42
tokens_completion
108
native_tokens_prompt
37
native_tokens_completion
122
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
0.0003161
api_type
"completions"
id
"gen-1763510023-RZOKwyu1vNMc4B4BIp5o"
upstream_id
(null)
total_cost
0.0003161
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
88.2027%
Matches word count
n/a
neededClean
false
sentences
15
wordCounts
0
5
1
5
2
6
3
6
4
6
5
6
6
6
7
5
8
6
9
6
10
5
11
6
12
5
13
5
14
5