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

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_id182717
external_user(null)
streamedtrue
cancelledfalse
latency808
moderation_latency(null)
generation_time2489
tokens_prompt35
tokens_completion190
native_tokens_prompt38
native_tokens_completion190
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"STOP" 
usage0.000589
router(null)
provider_responses
0
status200
is_byokfalse
latency808
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_cost0.000589
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
220
320
420
520
620
720