Run: 2026-07-09-01KX41K5KJBC84GCA9AEC3W076

Run Details

Model:: GPT-5.6 Luna (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 5.6s
Cost:: $0.005081
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 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

Rain tapped against Blackwood Manor.  
Inspector Vale arrived before dawn.  
Every window glowed except one.  
That room belonged to Ashford.  
His body waited beside breakfast.  
Blood darkened the silver teapot.  
Nobody had touched the door.  
Vale noticed muddy footprints outside.  
They ended beneath his window.  
Inside, seven guests watched silently.  
Each face concealed something terrible.  
Then the clock struck midnight.  
Someone whispered, “He was poisoned.”  
But Vale smelled fresh roses.  
A locked drawer clicked open.  
Everyone turned toward the sound.  
Vale smiled without looking pleased.  
The murderer remained inside tonight.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	5
4	5
5	5
6	5
7	5
8	5
9	5
10	5
11	5
12	5
13	5
14	5
15	5
16	5
17	5