NC Bench
Overview
About
Tests
Models
Model
o4 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-16-01JRZZ3APRFDRJHJG6EZR0FT7N
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 grand manor stood silent under moonlight, its ancient walls darkly murmuring secrets no living soul could ever truly understand. A shriek pierced the midnight air as blood stained the marble floor, marking the brutal unspeakable end of fragile innocence. Detective Hart arrived moments later, flashlight unsteadily trembling in hand while surveying shattered glass, overturned furniture, and ominous crimson footprints. Outside, dense fog clung to skeletal trees, obscuring ancient statues and lending every twisted branch an eerie waiting, accusing silhouette. A single note, ink smeared and trembling, warned the living to flee before midnight’s unforgiving blade claimed yet another victim.
id
"gen-1744829525-DZjC1UB5Rv0NQdWUvATK"
upstream_id
"chatcmpl-BN29ditIJWVwZirZt7MJ0k3ikvSSr"
total_cost
0.0119823
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:52:29.956906+00:00"
Wednesday, April 16th, 2025 at 6:52:29 PM GMT+00:00
model
"openai/o4-mini-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
23327
moderation_latency
632
generation_time
23965
tokens_prompt
42
tokens_completion
2694
native_tokens_prompt
41
native_tokens_completion
2713
native_tokens_reasoning
2560
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
0.0119823
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
20
1
20
2
20
3
20
4
20