NC Bench
Overview
About
Tests
Models
Model
o4 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-16-01JRZZD1GGPWXAKSSRG4DMTTND
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
A crack of lightning illuminated the dilapidated corridor as Detective Archer stepped cautiously toward the fresh, crimson-stained, still, lifeless body. Thunder shook the ancient walls while rain pounded against shattered windows, creating an eerie rhythm that echoed through silent halls. Detective Archer paused, glancing over his shoulder as a cold breeze carried distant whispers from rooms drenched in ominous darkness. A lamp flickered violently, casting distorted shadows across ancient wallpaper, heightening tension as Detective Archer steeled against a lurking murderer. In that moment, footsteps approached from the dim hallway, echoing ominously before abruptly stopping just beyond Archer’s trembling flashlight beam.
id
"gen-1744829843-WDhSndnAWrciwYnlTCDT"
upstream_id
"chatcmpl-BN2ElL84YoNV2iGzkASH3C7TD4XrJ"
total_cost
0.0187407
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:58:02.088996+00:00"
Wednesday, April 16th, 2025 at 6:58:02 PM GMT+00:00
model
"openai/o4-mini-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
37469
moderation_latency
204
generation_time
38065
tokens_prompt
42
tokens_completion
4230
native_tokens_prompt
41
native_tokens_completion
4249
native_tokens_reasoning
4096
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
0.0187407
Evaluation details
Result
Evaluator
Details
Meta Data
92.1306%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
21
1
20
2
20
3
20
4
20