Model

o4 Mini

Test

N-Length Sentences

Scenario

Write sentences with 10 words each

Run ID

2025-04-16-01JRZYWVJY4TYBM4NAXDHVRJEP

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
Lightning split the night sky as thunder rattled the manor. A solitary lamplight flickered within the damp hallway, revealing nothing. Detective Harper approached cautiously, footsteps echoing through the empty corridor. Sudden scream pierced the silence, freezing blood in every heart. Harper discovered Lady Ashcroft’s body sprawled across cold marble floor. A single dagger protruded grotesquely from her pale, silent chest. Blood stained the elegant gown she had worn moments earlier. A storm raged outside, hiding footsteps beyond the stone walls. Harper’s mind raced through suspects as candles guttered, shadows dancing. Somebody in this house knew secrets darker than any storm.
id"gen-1744829312-69H5hFtBou3VSpcZNEIb" 
upstream_id"chatcmpl-BN26DI9qUHiLThyGUx1n1b7kY5HHB" 
total_cost0.0094919
cache_discount(null)
provider_name"OpenAI" 
created_at"2025-04-16T18:48:58.337665+00:00" Wednesday, April 16th, 2025 at 6:48:58 PM GMT+00:00
model"openai/o4-mini-2025-04-16" 
app_id182717
streamedtrue
cancelledfalse
latency23354
moderation_latency78
generation_time24728
tokens_prompt42
tokens_completion2128
native_tokens_prompt41
native_tokens_completion2147
native_tokens_reasoning1984
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" 
usage0.0094919

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910