NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Pro
Test
N-Length Sentences
Scenario
Write sentences with 5 words each
Run ID
2025-11-18-01KACP7M978FAP7ZGHGD0G4ZD4
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The library was deathly still. Rain lashed against the windows. Detective Miles surveyed the scene. Lord Blackwood was quite dead. He slumped in his armchair. A book lay open wide. Its pages were stained crimson. A letter opener jutted out. It was plunged into him. His eyes stared at nothing. The old clock had stopped. Now the real work began.
created_at
"2025-11-18T23:54:23.931906+00:00"
Tuesday, November 18th, 2025 at 11:54:23 PM GMT+00:00
model
"google/gemini-2.5-pro"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2143
moderation_latency
(null)
generation_time
16261
tokens_prompt
42
tokens_completion
719
native_tokens_prompt
37
native_tokens_completion
1774
native_tokens_completion_images
0
native_tokens_reasoning
1695
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"STOP"
usage
0.01778625
api_type
"completions"
id
"gen-1763510047-BzssMRhVchjtXjxDvd2r"
upstream_id
(null)
total_cost
0.01778625
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
12
wordCounts
0
5
1
5
2
5
3
5
4
5
5
5
6
5
7
5
8
5
9
5
10
5
11
5