Run: 2025-11-18-01KACP8QQ6R0T8VG86QEYGJKM0

Run Details

Model:
Gemini 2.5 Pro
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
14.5s
Cost:
$0.016698
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
84.45% Matches word count (details)

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
A grandfather clock chimed its solemn, resonating midnight hour. Rain lashed hard against the tall, leaded library windows. Detective Corbin stepped into the vast and eerily quiet room. Lord Harrington lay sprawled upon the priceless Aubusson carpet. His eyes were wide open, staring at absolutely nothing. A small, dark stain bloomed across his starched shirt. Beside his hand, a silver letter opener gleamed brightly. An overturned glass of brandy had soaked into the wood. The air in the room felt heavy with unspoken secrets. Corbin knew this night would be a very long one.
created_at"2025-11-18T23:54:58.287873+00:00" 11/18/2025, 11:54:58 PM
model"google/gemini-2.5-pro"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2138
moderation_latency(null)
generation_time14383
tokens_prompt42
tokens_completion624
native_tokens_prompt38
native_tokens_completion1665
native_tokens_completion_images0
native_tokens_reasoning1543
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"
usage0.0166975
api_type"completions"
id"gen-1763510083-eSiyWQZkRHGa0ubhAA1c"
upstream_id(null)
total_cost0.0166975
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
84.45% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
09
19
210
39
49
59
69
710
810
910