Run: 2025-04-16-01JRZYZ6ZTZXDJ63482Z9XZ17J

Run Details

Model:: o4 Mini
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 12.2s
Cost:: $0.006289
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 thunder rattled the ancient windows of desolate Marlowe's estate.  
A lone gardener stumbled upon crimson footprints near broken glass.  
Blood stained the hedges leading towards the mansion’s grand entrance.  
Inside, Lady Wilcox stood frozen, face pale with unspeakable horror.  
Detective Sinclair arrived moments later, rain-soaked coat brushing muddy floors.  
He knelt carefully beside the body, noting every peculiar detail.  
Thunder boomed again, as secrets whispered through shadowed, silent corridors.  
Buried motives waited patiently, hidden beneath polished smiles and alliances.

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-1744829390-GZAf7NJP0kPNodZx9wLw"
upstream_id	"chatcmpl-BN27SaerYIbSaoISwQTl1v1J3cVJK"
total_cost	0.0062887
cache_discount	(null)
provider_name	"OpenAI"
created_at	"2025-04-16T18:50:02.220971+00:00" 4/16/2025, 6:50:02 PM
model	"openai/o4-mini-2025-04-16"
app_id	182717
streamed	true
cancelled	false
latency	11016
moderation_latency	75
generation_time	11842
tokens_prompt	42
tokens_completion	1400
native_tokens_prompt	41
native_tokens_completion	1419
native_tokens_reasoning	1280
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	0.0062887