Run: 2025-04-16-01JRZYZEGSEQWTK4Q5M08FT6EP

Run Details

Model:: o4 Mini High
Test:: N-Length Sentences
Scenario:: Write sentences with 20 words each
Duration:: 37.6s
Cost:: $0.014385
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
100.00%	Matches word count	(details)

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

A chilling fog curled around the crumbling estate as Detective Marlowe stepped onto the marble foyer under pale moonlit sky.  
The grand hallway lay silent except for a crimson stain pooling beneath a cold lifeless hand, hinting at sinister violence.  
Muffled whispers drifted through ornate doors as trembling servants exchanged fearful glances, uncertain who might be the next helpless victim.  
Detective Marlowe observed terrified twitches and calculated each clue with unwavering focus, determined to unmask the murderer before midnight tolls.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	20
1	20
2	20
3	20

id	"gen-1744829397-TjxFvnDszVaXWa35jndG"
upstream_id	"chatcmpl-BN27ZWSUfis1RovL7B6i7YaPWRznQ"
total_cost	0.0143847
cache_discount	(null)
provider_name	"OpenAI"
created_at	"2025-04-16T18:50:35.388494+00:00" 4/16/2025, 6:50:35 PM
model	"openai/o4-mini-high-2025-04-16"
app_id	182717
streamed	true
cancelled	false
latency	36348
moderation_latency	94
generation_time	37185
tokens_prompt	42
tokens_completion	3241
native_tokens_prompt	41
native_tokens_completion	3259
native_tokens_reasoning	3136
num_media_prompt	(null)
num_media_completion	(null)
num_search_results	(null)
origin	"https://ncbench.com/"
is_byok	false
finish_reason	"stop"
native_finish_reason	"stop"
usage	0.0143847