NC Bench
Overview
About
Tests
Models
Model
Gemini 3 Flash (Preview)
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2026-02-08-01KGYXBCNR3WYSXCDYRT3MR0TW
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 marble mantle struck midnight as a single silver bullet shattered the heavy crystal decanter nearby. Arthur Penhaligon collapsed onto the Persian rug while the scent of expensive bourbon mingled with the metallic tang of blood. No scream escaped his lips because the projectile had severed his windpipe before he could even process the sudden impact. Outside the library window, a shadow retreated into the thick fog that clung to the jagged cliffs of the estate. Silence returned to the manor house except for the steady rhythmic dripping of dark liquid onto the polished hardwood floor. A gloved hand reached from behind the velvet velvet curtains to retrieve a spent shell casing from the expensive carpet. The mysterious figure vanished through the side door just as the distant baying of a hound echoed across the moors. Now the master of the house lay dead and the killer was already miles away in the cold autumn night.
created_at
"2026-02-08T15:19:04.700009+00:00"
Sunday, February 8th, 2026 at 3:19:04 PM GMT+00:00
model
"google/gemini-3-flash-preview-20251217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
808
moderation_latency
(null)
generation_time
2489
tokens_prompt
35
tokens_completion
190
native_tokens_prompt
38
native_tokens_completion
190
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
0.000589
router
(null)
provider_responses
0
status
200
is_byok
false
latency
808
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-1770563941-vS2boZ64RD3DI0HC2TPP"
upstream_id
(null)
total_cost
0.000589
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