NC Bench
Overview
About
Tests
Models
Model
GPT-4.1
Test
N-Length Sentences
Scenario
Write sentences with 10 words each
Run ID
2025-04-14-01JRTSW5BYAKBWVGBQYTZ4BX5W
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 battered the small town’s windows, a relentless tapping rhythm. Detective Lane sipped coffee, gaze fixed on the gathering townsfolk. A scream shattered the silence, echoing through the old manor. The lights flickered violently, plunging the room into sudden darkness. When illumination returned, a body lay sprawled near the fireplace. Whispers rose quickly, panic bubbling beneath carefully composed faces. Lane knelt, examining crimson stains seeping onto the carpet. “Everyone, remain calm,” he commanded, voice steady among frightened onlookers. A bloodied letter opener glinted ominously under the chandelier’s glare. In that single moment, trust dissolved, suspicion springing up everywhere.
id
"gen-1744656275-bDE484o3Yl7OS5fKI4eu"
upstream_id
"chatcmpl-BMJ5IKrPH3AQ5ko2q4uVmSBvpjzP2"
total_cost
0.001276
cache_discount
(null)
provider_name
"OpenAI"
created_at
"2025-04-14T18:44:38.030304+00:00"
Monday, April 14th, 2025 at 6:44:38 PM GMT+00:00
model
"openai/gpt-4.1-2025-04-14"
app_id
182717
streamed
true
cancelled
false
latency
504
moderation_latency
481
generation_time
1309
tokens_prompt
42
tokens_completion
148
native_tokens_prompt
42
native_tokens_completion
149
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
0.001276
Evaluation details
Result
Evaluator
Details
Meta Data
83.1293%
Matches word count
n/a
neededClean
false
sentences
9
wordCounts
0
10
1
10
2
10
3
10
4
10
5
9
6
9
7
20
8
10