Model

GPT-4.1 Mini

Test

N-Length Sentences

Scenario

Write sentences with 20 words each

Run ID

2025-04-14-01JRTSZ3JS2GC8434CBCZ204RJ

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 old mansion loomed silently beneath a sky heavy with clouds, shadows creeping along its timeworn, ivy-clad walls. Detective Harper stepped cautiously inside, her flashlight piercing the darkness, revealing dust particles dancing in the stale, cold air. A sudden creak echoed softly, alerting her senses to unseen movements lurking somewhere deep within the mansion’s endless, twisting corridors. On the grand, polished floor lay a shattered vase, surrounded by crimson stains pooling near the lifeless body of Mr. Blackwood. Her breath caught briefly as she examined the scene, noting the peculiar arrangement of objects and the absence of obvious weapons. Footsteps approached from upstairs, hurried and uneven, while the distant clock chimed midnight, marking the ominous beginning of a deadly investigation.
id"gen-1744656371-JrnHqU6c88JIc1Sl8Mid" 
upstream_id"chatcmpl-BMJ6q6HJa77k1n99a2Z6aUetyVU8n" 
total_cost0.0002728
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-14T18:46:13.969662+00:00" Monday, April 14th, 2025 at 6:46:13 PM GMT+00:00
model"openai/gpt-4.1-mini-2025-04-14" 
app_id182717
streamedtrue
cancelledfalse
latency438
moderation_latency262
generation_time743
tokens_prompt42
tokens_completion159
native_tokens_prompt42
native_tokens_completion160
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" 
usage0.0002728

Evaluation details

Result Evaluator Details Meta Data
67.2109% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
019
119
220
321
421
521