NC Bench
Overview
About
Tests
Models
Model
o4 Mini High
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-16-01JRZZ3D85WKZP8826P2PH91XK
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The ancient mansion gloomed under moonlight as Detective Harper stepped cautiously across creaking floorboards toward ominous silence and hidden danger. A single flickering lantern revealed bloodstains staining faded oriental carpets that whispered ancient secrets with unnerving insistence beyond mortal comprehension. Shadows danced across cracked wallpaper as distant whispers echoed through halls carrying warnings of an unseen predator closing in relentlessly. Detective Harper’s gloved hand trembled while examining a shattered mirror reflecting crimson droplets and distorted silhouettes lurking just beyond perception. Every breath felt heavy as heartbeats echoed like thunder through corridors, intensifying dread that seeped into each cold marble pillar. A muffled cry erupted beyond the oak doors, jolting the detective’s senses toward another brutal mystery waiting to be unraveled. Moonlight spilled through stained glass, casting eerie patterns upon bloodstained footprints leading deeper into the manor’s damp corridors of despair. Beyond a distant door, a grandfather clock chimed ominously, its hollow resonance stirring memories of past horrors dreadful to describe.
id
"gen-1744829527-9583jHUO8JrvXeAsxA4R"
upstream_id
"chatcmpl-BN29fIJgiT4MI32V6mNbfTujZ3dRw"
total_cost
0.0235763
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:53:10.198367+00:00"
Wednesday, April 16th, 2025 at 6:53:10 PM GMT+00:00
model
"openai/o4-mini-high-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
60046
moderation_latency
204
generation_time
61811
tokens_prompt
42
tokens_completion
5328
native_tokens_prompt
41
native_tokens_completion
5348
native_tokens_reasoning
5120
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
0.0235763
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
8
wordCounts
0
20
1
20
2
20
3
20
4
20
5
20
6
20
7
20