Model

Gemini 3 Flash (Preview)

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGYXP895223N1611M1BQWQWZ

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 mantelpiece chimed twelve times as the heavy velvet curtains swayed in the freezing breeze. Sir Reginald lay slumped across his mahogany desk while a single drop of crimson blood soaked into the expensive rug. The study door stood slightly ajar, allowing a thin sliver of pale moonlight to illuminate the broken glass nearby. Outside, the gardener noticed a shadowy figure sprinting toward the darkened woods before disappearing into the thick and swirling fog. A silver letter opener remained embedded deep within the victim's chest, glinting under the soft glow of the dying fire. Inspector Miller adjusted his spectacles and stepped over the threshold, knowing that everyone in this house had a dark secret. He sighed heavily because he realized that the long night ahead would surely reveal a very clever and ruthless killer.
created_at"2026-02-08T15:24:59.873112+00:00" Sunday, February 8th, 2026 at 3:24:59 PM GMT+00:00
model"google/gemini-3-flash-preview-20251217" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency760
moderation_latency(null)
generation_time2093
tokens_prompt35
tokens_completion166
native_tokens_prompt38
native_tokens_completion158
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" 
usage0.000493
router(null)
provider_responses
0
status200
is_byokfalse
latency760
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-1770564297-0QjlQmfxL7HHQFCs5tMY" 
upstream_id(null)
total_cost0.000493
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
94.3790% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
219
320
420
520
620