Run: 2025-04-14-01JRTSVBY2BJN4WVHYDXYSHABT

Run Details

Model:: GPT-4.1
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 1.6s
Cost:: $0.000732
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
97.79%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Rain slid down dusty windowsills.  
A clock ticked, echoing gloom.  
Marjorie watched shadows silently crawl.  
A scream sliced through the silence.  
Footsteps thundered up the staircase.  
Blood pooled beneath the door.  
Her breath caught, heart pounding.  
The letter opener was missing.  
Lightning flashed, revealing a hand.  
Someone outside began to yell.

Evaluation details

Result

Evaluator

Details

Meta Data

97.79%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	6
4	5
5	5
6	5
7	5
8	5
9	5

id	"gen-1744656249-ol8Fm207yl4br0l9tV6q"
upstream_id	"chatcmpl-BMJ4r0ujGvgM7jDSgTWcJHE5Ef1CD"
total_cost	0.000732
cache_discount	(null)
provider_name	"OpenAI"
created_at	"2025-04-14T18:44:10.763076+00:00" 4/14/2025, 6:44:10 PM
model	"openai/gpt-4.1-2025-04-14"
app_id	182717
streamed	true
cancelled	false
latency	325
moderation_latency	92
generation_time	637
tokens_prompt	42
tokens_completion	80
native_tokens_prompt	42
native_tokens_completion	81
native_tokens_reasoning	0
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	0.000732