Model

Gemini 2.5 Flash

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-11-18-01KACP7T2A0RNKJS5SAK4TP6DH

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
Rain lashed against the leaded panes, obscuring the moon’s pale, watchful gaze. Inside the study, a single brandy snifter lay shattered on the Persian rug. Lord Ashworth’s slumped form cast an unsettling shadow across antique leather, quite still. A faint smell of almonds, too sweet and cloying, lingered eerily in the air. His spectacles had fallen askew, catching a glint from the flickering gaslight. The rare first edition of Poe had slipped from lifeless fingers, now lying open. A heavy velvet curtain, slightly disturbed, suggested a hasty departure, perhaps. No one else was supposed to be present in the grand, silent manor. The grandfather clock in the hall mercifully chimed, breaking the oppressive stillness. Its deep, resonant tone echoed through the dimly lit, now desolate corridors.
created_at"2025-11-18T23:54:14.501189+00:00" Tuesday, November 18th, 2025 at 11:54:14 PM GMT+00:00
model"google/gemini-2.5-flash" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency304
moderation_latency(null)
generation_time1320
tokens_prompt42
tokens_completion178
native_tokens_prompt38
native_tokens_completion168
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" 
usage0.0004314
api_type"completions" 
id"gen-1763510052-zGE3YSLJyJnoo1vGpuZ3" 
upstream_id(null)
total_cost0.0004314
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
0.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
012
113
213
314
412
514
611
713
812
912