Model

Gemini 2.5 Pro

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-11-18-01KACP363TK1KXY54BYRJA1W1F

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The old library was silent, a tomb for forgotten words. Dust motes danced in the single, slanting moonbeam. Upon the rich Persian rug, Lord Ashworth lay very still. A silver letter opener protruded from his expensive tweed vest. His vacant eyes stared sightlessly at the ornate, high ceiling. A half-empty glass of brandy sat beside one cold hand. One priceless, ancient book was lying open on the floor. The grandfather clock had stopped at the stroke of midnight.
created_at"2025-11-18T23:51:53.703267+00:00" Tuesday, November 18th, 2025 at 11:51:53 PM GMT+00:00
model"google/gemini-2.5-pro" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2159
moderation_latency(null)
generation_time11690
tokens_prompt42
tokens_completion583
native_tokens_prompt38
native_tokens_completion1282
native_tokens_completion_images0
native_tokens_reasoning1181
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" 
usage0.0128675
api_type"completions" 
id"gen-1763509901-2xuPpiLGz38xs7c4UJ8G" 
upstream_id(null)
total_cost0.0128675
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
88.0252% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
18
210
310
410
511
610
710