NC Bench
Overview
About
Tests
Models
Model
GPT-4.1 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-14-01JRTSVFFPCG9RW9HC04RVSKYP
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 rain hammered against the old mansion’s windows as Detective Harper stepped through the creaking front door cautiously. A lifeless body lay sprawled across the tiled floor, blood pooling beneath the victim’s head in a chilling pattern. Shadows danced eerily on the faded wallpaper, casting sinister shapes that made Harper’s heart race with uneasy suspicion. A shattered vase lay nearby, its ceramic pieces glinting like tiny daggers reflecting the dim candlelight flickering softly. Silent footsteps echoed from the upstairs hallway, suggesting the murderer might still be hiding somewhere within these haunted walls.
id
"gen-1744656252-psktuaNtz4vBh4s7oQav"
upstream_id
"chatcmpl-BMJ4vqaqN9YnZrG4DjfgbtsPL0gN8"
total_cost
0.0002072
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:44:14.302324+00:00"
Monday, April 14th, 2025 at 6:44:14 PM GMT+00:00
model
"openai/gpt-4.1-mini-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
432
moderation_latency
98
generation_time
580
tokens_prompt
42
tokens_completion
118
native_tokens_prompt
42
native_tokens_completion
119
native_tokens_reasoning
0
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
0.0002072
Evaluation details
Result
Evaluator
Details
Meta Data
32.3813%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
18
1
19
2
18
3
18
4
19