Model

Gemini 3 Flash (Preview)

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGYXMNKFQYYE7Y3RY0ZYKD1P

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 twelve as the heavy velvet curtains swayed in the cold midnight breeze. Arthur lay across the Persian rug while a thin trail of ruby blood seeped into the intricate floral wool patterns. No one heard the muffled gunshot because the crashing thunderstorm outside masked the violent sound of the silver snub-nosed revolver. Lady Penelope stood near the oak door gripped by a freezing terror that rendered her elegant limbs completely and utterly. Her diamond necklace glittered under the dim chandelier light but her wide eyes remained fixed on her husband’s pale face. A single white rose rested upon his chest as a silent calling card from the phantom killer who escaped tonight. Somewhere deep within the sprawling manor a floorboard creaked loudly as the invisible predator began to hunt for another victim. The game of death started with a simple scream that echoed through the empty halls of the ancient stone estate.
created_at"2026-02-08T15:24:08.312381+00:00" Sunday, February 8th, 2026 at 3:24:08 PM GMT+00:00
model"google/gemini-3-flash-preview-20251217" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1185
moderation_latency(null)
generation_time2621
tokens_prompt35
tokens_completion183
native_tokens_prompt38
native_tokens_completion176
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" 
usage0.000547
router(null)
provider_responses
0
status200
is_byokfalse
latency1185
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-1770564245-dL42vZ0PENZQM7EOaS6l" 
upstream_id(null)
total_cost0.000547
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
95.0816% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
221
320
420
520
620
720