NC Bench
Overview
About
Tests
Models
Model
GPT-4.1 Mini
Test
N-Length Sentences
Scenario
Write sentences with 20 words each
Run ID
2025-04-14-01JRTSVE5Q5C2885BG5P2MS771
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
Detective Marlowe arrived at the mansion just as the storm unleashed torrents against the ancient, creaking front doors ominously. Inside, the grand chandelier flickered erratically, casting long, jittery shadows over the marble floor where a body lay cold. The victim, a wealthy entrepreneur known for ruthless deals, was sprawled near the fireplace, a single knife wound evident in his chest. Guests gathered nervously in the drawing room, whispering rumors and exchanging suspicious glances, while the detective systematically examined the grisly crime scene. Outside, thunder rumbled deeply, masking the subtle but distinct sound of footsteps retreating into the darkness beyond the garden hedges quickly.
id
"gen-1744656251-jQmXMeJ6HuubwOUrMnDF"
upstream_id
"chatcmpl-BMJ4tsrLBBlulu5Nx8hBcBexmkZgW"
total_cost
0.0002408
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:44:13.778047+00:00"
Monday, April 14th, 2025 at 6:44:13 PM GMT+00:00
model
"openai/gpt-4.1-mini-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
647
moderation_latency
115
generation_time
788
tokens_prompt
42
tokens_completion
139
native_tokens_prompt
42
native_tokens_completion
140
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
0.0002408
Evaluation details
Result
Evaluator
Details
Meta Data
41.8053%
Matches word count
n/a
neededClean
false
sentences
5
wordCounts
0
19
1
19
2
22
3
22
4
21