Model

Gemini 2.5 Flash

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-11-18-01KACP83YHDJMNT50P3AZYPR9V

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 rain lashed against the grimy windowpanes, a relentless October downpour. Inside, dust motes danced in the single lamp’s glow, illuminating the antique parlor. Lord Ashworth lay sprawled across the Persian rug, unmoving and pale. A crimson stain bloomed on his immaculate tweed jacket, stark against the fabric. His silver spectacles had fallen near his aristocratic hand, glinting dully there. Miss Eleanor Vance stood rigid by the cold fireplace, clutching a velvet shawl. Her wide eyes darted from the body to the intricate, silent grandfather clock. Fear tightened its cold grip around her slender throat, a silent scream. The faint scent of burnt almonds hung heavy in the opulent, airless room. This wasn't a tragic accident; it was a deliberate, brutal killing.
created_at"2025-11-18T23:54:25.055321+00:00" Tuesday, November 18th, 2025 at 11:54:25 PM GMT+00:00
model"google/gemini-2.5-flash" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency490
moderation_latency(null)
generation_time1452
tokens_prompt42
tokens_completion177
native_tokens_prompt38
native_tokens_completion171
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" 
usage0.0004389
api_type"completions" 
id"gen-1763510063-ucVG9l2nsIYMF2HUh6Jp" 
upstream_id(null)
total_cost0.0004389
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
011
113
211
313
412
513
613
712
813
911