NC Bench
Overview
About
Tests
Models
Model
GPT-4.1 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-14-01JRTSYQJF9ESTKMCS93SKEQ74
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 storm raged fiercely outside the old mansion, lightning illuminating shadows that danced against the creaking wooden walls. Detective Harper stepped inside, their coat dripping rainwater, eyes scanning the dimly lit room for any signs of disturbance. A shattered vase lay near the grand piano, petals of wilted roses scattered, hinting at recent, violent confrontation unknown. From the library, muffled voices echoed softly, tension thick in the air as secrets waited silently to be revealed. Suddenly, a blood-curdling scream pierced the night, forcing Harper to quicken their pace toward the source, heart pounding heavily.
id
"gen-1744656359-vUYBCtW28hfnUJrlQRUk"
upstream_id
"chatcmpl-BMJ6d8HCXEh5CPsCCWvUMQH7Icbea"
total_cost
0.0002216
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:46:02.36061+00:00"
Monday, April 14th, 2025 at 6:46:02 PM GMT+00:00
model
"openai/gpt-4.1-mini-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
538
moderation_latency
117
generation_time
1446
tokens_prompt
42
tokens_completion
127
native_tokens_prompt
42
native_tokens_completion
128
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
0.0002216
Evaluation details
Result
Evaluator
Details
Meta Data
59.0985%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
18
1
19
2
19
3
19
4
20