Run: 2025-11-18-01KACPBET73WPPG8PTBTKSQ1HM

Run Details

Model:
Gemini 2.5 Flash
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
1.2s
Cost:
$0.000306
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
61.68% 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
The old mansion groaned a welcome for the guests arriving. Rain lashed the windows, a dismal drumming rhythm. Lord Ashworth, our host, poured his finest brandy. He offered a toast before dinner, smiling strangely then. The fire cast long shadows across his pale face. Lady Ashworth wore her pearls, glittering and cold. She whispered to herself, barely audible to anyone. A serving girl stumbled while carrying a silver tray. The ornate grandfather clock chimed midnight with a loud toll. Suddenly, a piercing scream echoed throughout the great hall.
created_at"2025-11-18T23:56:14.168612+00:00" 11/18/2025, 11:56:14 PM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency423
moderation_latency(null)
generation_time1110
tokens_prompt42
tokens_completion123
native_tokens_prompt38
native_tokens_completion118
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"
usage0.0003064
api_type"completions"
id"gen-1763510172-4pIOuGUb1lSdYgw6Cf1B"
upstream_id(null)
total_cost0.0003064
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
61.68% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
18
28
39
49
58
68
79
810
99