Model

GPT-4.1

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSTPGWAZY18ZJJM7N68MPD

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
A shrill scream sliced the frigid morning air, echoing down the marble corridors of Hemsworth Manor, shattering uneasy silence. Detective Clara Fields arrived swiftly, her breath clouding as she stepped through the grand entrance, eyes narrowed, senses trained for detail. A crystal chandelier flickered overhead, dim light casting long shadows over the lifeless figure sprawled across the ornate Persian rug. Blood pooled beneath the victim’s delicate hand, a crimson stain creeping outward, soaking into intricate patterns of blue and gold. Family members gathered nervously at the threshold, their anxious whispers bouncing off gilded walls, searching for explanations amid growing dread. A broken teacup glinted underfoot, shards scattered across polished hardwood like clues waiting to be pieced together by keen observation. As thunder rolled outside, Clara knelt beside the body, her gloved fingers hovering over a single, handwritten note clutched tightly. The grandfather clock chimed eight, its somber tone marking time’s relentless march and beginning of a night no one would forget.
id"gen-1744656227-LbYs1G8InqWweP5piGkT" 
upstream_id"chatcmpl-BMJ4VYXvukvkXQFZ67AVm8TdIpfy0" 
total_cost0.00182
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:43:50.525061+00:00" Monday, April 14th, 2025 at 6:43:50 PM GMT+00:00
model"openai/gpt-4.1-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency485
moderation_latency277
generation_time1904
tokens_prompt42
tokens_completion216
native_tokens_prompt42
native_tokens_completion217
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" 
usage0.00182

Evaluation details

Result Evaluator Details Meta Data
85.2449% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
019
121
220
320
420
520
620
721