NC Bench
Overview
About
Tests
Models
Model
Gemini 3 Flash (Preview)
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2026-02-08-01KGYXNJ1BQYV2YM3XYRV26M7J
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 golden clock on the rosewood mantle struck twelve times while a heavy mist rolled across the dark, silent estate. Sir Percival lay perfectly still upon the patterned Persian rug with a silver letter opener protruding from his frail chest. No one heard the muffled scream or the frantic scuffle that preceded the sudden silence within the cold, library walls. A single puddle of crimson ink pooled beneath his hand, staining the final line of his newly finished, secret will. Outside, the gardener noticed a flickering light in the west wing but decided it was merely the wind playing tricks. He stepped away from the window, leaving the dead man alone in the shadows of shadows of his grand home. Every heavy door remained locked from the inside, yet a bitter draft chilled the air like a cold, ghostly hand. The killer stood in the hallway, listening to the pounding of a guilty heart before slipping quietly into the night.
created_at
"2026-02-08T15:24:37.149185+00:00"
Sunday, February 8th, 2026 at 3:24:37 PM GMT+00:00
model
"google/gemini-3-flash-preview-20251217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
751
moderation_latency
(null)
generation_time
2272
tokens_prompt
35
tokens_completion
186
native_tokens_prompt
38
native_tokens_completion
180
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
0.000559
router
(null)
provider_responses
0
status
200
is_byok
false
latency
751
endpoint_id
"6e82f652-2693-4b60-bbe0-7362d6e345f0"
provider_name
"Google AI Studio"
model_permaslug
"google/gemini-3-flash-preview-20251217"
api_type
"completions"
id
"gen-1770564274-uI97D6ehtcD75hmNjPhJ"
upstream_id
(null)
total_cost
0.000559
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20