NC Bench
Overview
About
Tests
Models
Model
GPT-4.1
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-04-14-01JRTSZS7Y0YBXWAEWPVQSFFCT
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Fog lingered along the cobblestone street as dawn approached slowly. Detective Marlowe’s footsteps echoed, steady and deliberate in the silence. A gloved hand clutching a notebook revealed his practiced, seasoned nerves. Lights flickered inside the bakery, promising warmth amidst the chill. Mrs. Crane appeared distraught, her apron stained and voice trembling quietly. “They found him there,” she whispered, gesturing toward the wooden counter. A crimson pool marred the flour, stark against the white. Marlowe knelt carefully, inspecting the lifeless figure sprawled near pastries. A single rose rested beside the victim’s open, empty hand. Somewhere outside, a clock chimed, announcing a new mystery’s beginning.
id
"gen-1744656394-idSEcyLRb3r2gWrBqYAp"
upstream_id
"chatcmpl-BMJ7CHqa41RCKZUDRV0IhcZKhJvdV"
total_cost
0.00134
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:46:37.11951+00:00"
Monday, April 14th, 2025 at 6:46:37 PM GMT+00:00
model
"openai/gpt-4.1-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
490
moderation_latency
100
generation_time
2195
tokens_prompt
42
tokens_completion
156
native_tokens_prompt
42
native_tokens_completion
157
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
0.00134
Evaluation details
Result
Evaluator
Details
Meta Data
92.2245%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
11
3
10
4
11
5
11
6
10
7
10
8
10
9
10