NC Bench
Overview
About
Tests
Models
Model
o4 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-16-01JRZYX0JWD4SZX2XM43X603EH
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 hall’s chandelier trembled above polished marble floors as the detective entered, noting unnatural shadows behind crimson velvet curtains. Dripping blood trails wound toward heavy oak doors at the far end, while a single cold broken glass lay abandoned. Candles flickered ominously across ancient portraits, illuminating silent onlookers whose gazes seemed accusatory, yet no living witness dared even speak. A distant grandfather clock struck midnight, its low chimes echoing corridors, foretelling secrets that would soon unravel hidden family tragedies.
id
"gen-1744829317-iGcU6y9IjywiKmQsrgRx"
upstream_id
"chatcmpl-BN26IjlPedFcgh2TPRSaxok3BGmSW"
total_cost
0.0073535
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-16T18:48:54.186155+00:00"
Wednesday, April 16th, 2025 at 6:48:54 PM GMT+00:00
model
"openai/o4-mini-2025-04-16"
app_id
182717
streamed
true
cancelled
false
latency
15105
moderation_latency
79
generation_time
15980
tokens_prompt
42
tokens_completion
1642
native_tokens_prompt
41
native_tokens_completion
1661
native_tokens_reasoning
1536
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
0.0073535
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
sentences
4
wordCounts
0
20
1
20
2
20
3
20