Model

Gemini 3 Flash (Preview)

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2026-02-08-01KGYXMQT6ZZHDY9H0VW2Y1CKW

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 velvet curtains hung heavy and still while a single spotlight flickered across the cold body on the wooden floor. Detective Miller stepped over the yellow tape and adjusted his glasses to see the strange mark on the dead man. Rain drummed a frantic rhythm against the skylight as the mansion remained silent except for the ticking of a clock. Nobody heard the scream during the thunder because the storm was loud enough to hide the sound of a struggle. He found a golden key tucked inside the victim's pocket and wondered which door in this house it might unlock. The butler stood by the marble fireplace with trembling hands while he watched the policemen search through the dark library. Something felt wrong about the way the wine glass lay shattered near the velvet chair in the middle of room. Every guest had a reason to want the old billionaire dead before he could sign the new version of will. The game had finally begun and the killer was likely still hiding somewhere inside the shadows of this ancient estate.
created_at"2026-02-08T15:24:10.424573+00:00" Sunday, February 8th, 2026 at 3:24:10 PM GMT+00:00
model"google/gemini-3-flash-preview-20251217" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency726
moderation_latency(null)
generation_time2280
tokens_prompt35
tokens_completion196
native_tokens_prompt38
native_tokens_completion202
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" 
usage0.000625
router(null)
provider_responses
0
status200
is_byokfalse
latency726
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-1770564247-5xhRs8fsThoDbJxR4uun" 
upstream_id(null)
total_cost0.000625
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
sentences9
wordCounts
020
120
220
320
420
520
620
720
820