Model

Gemini 2.5 Flash

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-11-18-01KACPA8FQG7TKQTMT2WHVMJAB

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 slicked the grimy cobblestones, reflecting the gaslight's hazy, yellow gleam. A lone cloaked figure hurried across the deserted plaza, head bowed against the wind. The carriage wheels left dark, wet streaks upon the ancient, cobbled street. Inside the dusty parlor, the grandfather clock maintained its rhythmic, heavy ticking. Lord Ashworth lay motionless on the Persian rug, a crimson stain blooming beneath him. The ornate dagger was still clutched firmly in his cold, pallid, stiffening hand. His final, wide-eyed stare was fixed upon the flickering fireplace's dying embers. A faint, sweet almond scent lingered, barely detectable, near the liquor decanter. Footsteps echoed loudly, rapidly ascending the creaky, spiral mahogany staircase. A hushed gasp escaped Lady Eleanor's lips as she entered the grim scene. Her trembling hand flew to her mouth, stifling a sudden, horrified, piercing scream. The butler, Mr. Jeeves, remained impassive, holding a silver, empty serving tray. Detective Inspector Finch surveyed the room, his keen eyes missing no minute details. He pulled out a small notebook, ready to begin his methodical investigation.
created_at"2025-11-18T23:55:35.80762+00:00" Tuesday, November 18th, 2025 at 11:55:35 PM GMT+00:00
model"google/gemini-2.5-flash" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency267
moderation_latency(null)
generation_time1940
tokens_prompt42
tokens_completion250
native_tokens_prompt38
native_tokens_completion242
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" 
usage0.0006164
api_type"completions" 
id"gen-1763510133-gKJvQoX9kn1DIGDD07O7" 
upstream_id(null)
total_cost0.0006164
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
sentences14
wordCounts
011
114
212
312
414
513
613
712
810
913
1013
1112
1213
1312