Model

Gemini 2.5 Pro

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-11-18-01KACPCW3FTF7DMZ3F5EHXBBXV

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 grandfather clock chimed midnight through the silent house. Librarian Elara Vance tidied the last of the scattered books. A strange, sweet coppery smell drifted from the history aisle. She followed the scent past shelves of ancient, leather-bound books. Lord Ashworth was slumped over his enormous, polished oak desk. A silver letter opener was embedded deep within his chest. His vacant eyes stared at a half-written, cryptic final note. Dark crimson had stained the pages of a priceless atlas. Elara Vance stood frozen, her quiet, orderly world now shattered. A single scream was trapped behind her suddenly trembling lips.
created_at"2025-11-18T23:57:17.969456+00:00" Tuesday, November 18th, 2025 at 11:57:17 PM GMT+00:00
model"google/gemini-2.5-pro" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2438
moderation_latency(null)
generation_time18772
tokens_prompt42
tokens_completion825
native_tokens_prompt38
native_tokens_completion2177
native_tokens_completion_images0
native_tokens_reasoning2048
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" 
usage0.0218175
api_type"completions" 
id"gen-1763510218-hveXTJn83m0kJENpIWun" 
upstream_id(null)
total_cost0.0218175
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio" 

Evaluation details

Result Evaluator Details Meta Data
94.8164% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
311
410
510
611
710
810
910