Model

GPT-4.1 Mini

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSS9N57N6N49BJ27TBNKYY

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
The evening fog settled thickly over the silent town as Detective Harris arrived, his coat pulled tight against the chill. Inside the grand mansion, gas lamps flickered weakly along the walls, casting eerie shadows that danced with unspoken secrets. A body lay sprawled across the ornate carpet, crimson staining the intricate patterns in a way that was horribly unnatural. Whispers of betrayal echoed through the heavy air, mingling with the faint scent of perfume and the sharp bite of fear. Detective Harris knelt beside the victim, noting the peculiar absence of a weapon, while guests shivered nervously in tight clusters. The clock above the mantel chimed midnight, its hollow tone reverberating ominously as footsteps approached the room with urgent purpose.
id"gen-1744656181-tFnb7Uuu40roIiqnA8y1" 
upstream_id"chatcmpl-BMJ3ltd4goP6QkER0DMU4gDROK3C0" 
total_cost0.0002648
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:43:03.415318+00:00" Monday, April 14th, 2025 at 6:43:03 PM GMT+00:00
model"openai/gpt-4.1-mini-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency535
moderation_latency217
generation_time682
tokens_prompt42
tokens_completion154
native_tokens_prompt42
native_tokens_completion155
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" 
usage0.0002648

Evaluation details

Result Evaluator Details Meta Data
86.8844% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
119
220
321
420
520