NC Bench
Overview
About
Tests
Models
Model
Gemini 2.5 Flash
Test
N-Length Sentences
Scenario
Write sentences with 5 words each
Run ID
2025-11-18-01KACP99WK5PT6WJV7K2DMWFRY
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 professor lay quite dead. He was near the his prized orchids. A single red petal fell. It landed on his tweed coat. The room smelled of death. And also of sweet night jasmine. Detective Miles Corbin slowly entered. His gaze swept the opulent room. A grand piano stood open. Its keys gleamed under the light. He removed his dark fedora. Corbin sighed, a long, deep breath. This case felt very wrong. So many secrets here to find.
created_at
"2025-11-18T23:55:03.964418+00:00"
Tuesday, November 18th, 2025 at 11:55:03 PM GMT+00:00
model
"google/gemini-2.5-flash"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
461
moderation_latency
(null)
generation_time
1262
tokens_prompt
42
tokens_completion
101
native_tokens_prompt
37
native_tokens_completion
96
native_tokens_completion_images
0
native_tokens_reasoning
0
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
0.0002511
api_type
"completions"
id
"gen-1763510101-gtkulLv684LHqNj6M6Bv"
upstream_id
(null)
total_cost
0.0002511
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Google AI Studio"
Evaluation details
Result
Evaluator
Details
Meta Data
83.5080%
Matches word count
n/a
neededClean
false
sentences
14
wordCounts
0
5
1
7
2
5
3
6
4
5
5
6
6
5
7
6
8
5
9
6
10
5
11
6
12
5
13
6