NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 5 words each
Run ID
2025-11-18-01KACP4HX9BC5F8K9WR87PY6YH
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
Dust motes danced in sunbeams. Lord Ashworth lay quite dead. A silver letter opener protruded. Red stained his velvet smoking jacket. Lady Ashworth entered the the room. Her gasp was chilling loud. She dropped a porcelain teacup. It shattered into many pieces. The delicate floral pattern broke. Lady Ashworth looked quite pale. Her maid, Clara, followed in. Clara saw the dead man. Her eyes went wide with shock. A scream caught in her throat. The air grew stiff with dread.
created_at
"2025-11-18T23:52:27.727864+00:00"
Tuesday, November 18th, 2025 at 11:52:27 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
434
moderation_latency
(null)
generation_time
1152
tokens_prompt
42
tokens_completion
107
native_tokens_prompt
37
native_tokens_completion
120
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
0.0003111
api_type
"completions"
id
"gen-1763509946-dATmsMnbSLZWwviY2hae"
upstream_id
(null)
total_cost
0.0003111
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
92.6267%
Matches word count
n/a
neededClean
false
sentences
15
wordCounts
0
5
1
5
2
5
3
6
4
6
5
5
6
5
7
5
8
5
9
5
10
5
11
5
12
6
13
6
14
6