NC Bench
Overview
About
Tests
Models
Model
GPT-4.1
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-04-14-01JRTSXSE7YRW4Q5QGJB6RCPD6
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
Rain pounded hard against the dark stained-glass library windows tonight. A grandfather clock chimed midnight, echoing through the cavernous marble hall. Lady Green stood frozen, clutching a letter with trembling fingers. Shadows curled beneath the velvet drapes, hiding secrets from sharp eyes. The hounds outside howled, disturbing the quiet unease inside walls. A fire crackled, its warmth unable to touch the chill. Lord Ashcroft’s cane lay abandoned, gleaming oddly near the piano. Very suddenly, a piercing scream shattered the hush of midnight. Guests rushed in, faces pale, only to find crimson spreading. A lifeless body sprawled on the rug, secrets cloaked in silence.
id
"gen-1744656328-PVC4pq5Cx2uVrbtJHLFI"
upstream_id
"chatcmpl-BMJ683oGGGQbiROBPvWhho7oNu8BY"
total_cost
0.0013
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:45:32.200756+00:00"
Monday, April 14th, 2025 at 6:45:32 PM GMT+00:00
model
"openai/gpt-4.1-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
449
moderation_latency
96
generation_time
2382
tokens_prompt
42
tokens_completion
151
native_tokens_prompt
42
native_tokens_completion
152
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
0.0013
Evaluation details
Result
Evaluator
Details
Meta Data
89.6327%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
11
1
11
2
10
3
11
4
10
5
10
6
10
7
10
8
10
9
11