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

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_cost0.001276
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_id182717
streamedtrue
cancelledfalse
latency504
moderation_latency481
generation_time1309
tokens_prompt42
tokens_completion148
native_tokens_prompt42
native_tokens_completion149
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" 
usage0.001276

Evaluation details

Result Evaluator Details Meta Data
83.1293% Matches word count n/a
neededCleanfalse
sentences9
wordCounts
010
110
210
310
410
59
69
720
810