NC Bench
Overview
About
Tests
Models
Model
o4 Mini
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-04-16-01JRZZ2APXPWH22RF7DZGR9RF4
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
Messages
Meta
AI
Moonlight spilled across the library’s dusty mahogany floorboards, casting patterns. A single crimson droplet glinted ominously beside the oak desk. Something heavy shifted beneath the drapes with a muffled thud. Detective Marlowe entered, her pulse quickening at each tense breath. Silver-handled revolver lay discarded under bloodstained newspaper headlines from yesterday. A grandfather clock chimed midnight, echoing through the silent hallways. Shadows danced unnaturally across portraits whose eyes seemed dangerously alive. Her gloved hand hovered above the body’s cold, motionless form.
id
"gen-1744829492-iHrvDu4vzcKawpr29Rd4"
upstream_id
"chatcmpl-BN296l37jl5mtqqpCk4l2fO6UuEtY"
total_cost
0.0105435
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:51:58.062478+00:00"
Wednesday, April 16th, 2025 at 6:51:58 PM GMT+00:00
model
"openai/o4-mini-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
24163
moderation_latency
102
generation_time
25354
tokens_prompt
42
tokens_completion
2367
native_tokens_prompt
41
native_tokens_completion
2386
native_tokens_reasoning
2240
num_media_prompt
(null)
num_media_completion
(null)
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.0105435
Evaluation details
Result
Evaluator
Details
Meta Data
96.7602%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
10
1
10
2
10
3
10
4
11
5
10
6
10
7
10