NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-11-18-01KACPBG0G97MHGF6DCREK73QK
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 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 of London’s East End. A gas lamp cast a lonely, flickering orb. Detective Inspector Thomas Mallory shivered, feeling the dampness deep. He adjusted his wool coat, a familiar ritual. The constable's urgent whisper had brought him here. They found the body inside the old tenement. A crowd of silent faces watched them pass. Mallory pushed through, his brow deeply furrowed. The smell of cheap gin and fear hung heavy. His shoes clicked on the worn wooden stairs.
created_at
"2025-11-18T23:56:15.327445+00:00"
Tuesday, November 18th, 2025 at 11:56:15 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
1266
tokens_prompt
42
tokens_completion
120
native_tokens_prompt
38
native_tokens_completion
116
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
0.0003014
api_type
"completions"
id
"gen-1763510173-00Fq1tICASIpassgqhV4"
upstream_id
(null)
total_cost
0.0003014
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
40.9683%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
9
1
8
2
9
3
8
4
8
5
8
6
8
7
7
8
9
9
8