Model

GPT-4.1

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSVKMBRFSBQV9RDADH46YK

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

AI
Storm clouds bruised the evening sky as guests arrived, the grand estate’s windows aglow like watchful, whispering eyes behind curtains. Crystal glasses clinked amid laughter, but tension threaded the air, sharp and invisible, as someone studied the group intently. A shriek from upstairs shattered conversations, freezing every guest, as the butler rushed ahead and flung open the ornate door. On polished marble sprawled the lifeless heiress, silk gown stained red, her hand clutching a crumpled note nobody could decipher. Rain battered the mansion, obscuring footprints and evidence, as the detective knelt beside the body and surveyed the stunned crowd.
id"gen-1744656257-t7AKpQe0c12p6ZpmUYjV" 
upstream_id"chatcmpl-BMJ4zmrxsX4uE1p8aviNAD5iK8cPS" 
total_cost0.001196
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:44:20.167058+00:00" Monday, April 14th, 2025 at 6:44:20 PM GMT+00:00
model"openai/gpt-4.1-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency356
moderation_latency98
generation_time1703
tokens_prompt42
tokens_completion138
native_tokens_prompt42
native_tokens_completion139
native_tokens_reasoning0
num_media_prompt(null)
num_media_completion(null)
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.001196

Evaluation details

Result Evaluator Details Meta Data
92.1306% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
119
220
320
420