Model

o4 Mini

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-04-16-01JRZYWPPHED49K679CCP5PHQJ

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
The grand manor stood silent beneath the moon’s pale glow. Lightning cracked across the sky, illuminating dusty portraits along hallway. A single candle flickered, casting shadows dancing menacingly against walls. Footsteps echoed softly somewhere beyond the library’s heavy oak doors. A chilling silence followed, broken only by distant thunder’s rumble. Detective Marlow stepped inside, observing the scene with careful scrutiny. Bloodstains glistened under candlelight beside a pale, lifeless, open-eyed corpse. A broken pocket watch lay motionless next to sprigs lavender. Marlow knelt slowly, examining the watch’s cracked glass face carefully. He whispered, “Someone here tonight orchestrated this macabre, calculated act.”
id"gen-1744829307-ad4RSKMqodViMt6BTcAC" 
upstream_id"chatcmpl-BN268d94SlFSr9enzeiCPZn2z5kHh" 
total_cost0.0084051
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:48:50.067643+00:00" Wednesday, April 16th, 2025 at 6:48:50 PM GMT+00:00
model"openai/o4-mini-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency21121
moderation_latency118
generation_time21737
tokens_prompt42
tokens_completion1881
native_tokens_prompt41
native_tokens_completion1900
native_tokens_reasoning1728
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" 
usage0.0084051

Evaluation details

Result Evaluator Details Meta Data
97.4082% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
611
710
810
910