Run: 2025-04-16-01JRZZCDZ02DAHDE083M4PHCEP

Run Details

Model:: o4 Mini
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 17.3s
Cost:: $0.006012
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 10 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Midnight rain pattered softly against the shuttered Victorian manor’s windows.  
Flickering candlelight revealed a broken mirror and crimson-stained marble floor.  
Detective Whitaker stood silently, examining footprints leading toward grand staircase.  
A solitary glove lay abandoned near the flickering hallway lantern.  
From upstairs, muffled sobs pierced the ominous, oppressive midnight air.  
Whitaker’s flashlight beam danced across broken floorboards and shattered portraits.  
Behind heavy oak door, a body lay upon crimson carpet.  
A silver dagger protruded gruesomely from the victim’s trembling chest.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	10
1	10
2	10
3	10
4	10
5	10
6	10
7	10

id	"gen-1744829823-Y6MkyI9jvepbiStcERbk"
upstream_id	"chatcmpl-BN2ERK4FWUQf7uQRLil6bVuoZ0wGf"
total_cost	0.0060115
cache_discount	(null)
provider_name	"OpenAI"
created_at	"2025-04-16T18:57:20.34451+00:00" 4/16/2025, 6:57:20 PM
model	"openai/o4-mini-2025-04-16"
app_id	182717
streamed	true
cancelled	false
latency	15468
moderation_latency	93
generation_time	16811
tokens_prompt	42
tokens_completion	1337
native_tokens_prompt	41
native_tokens_completion	1356
native_tokens_reasoning	1216
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	0.0060115