Run: 2026-03-18-01KM07CRBT0B7VQWCWMDBS2J2K

Run Details

Model:: GPT-5.4 Nano (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 10 words each
Duration:: 10.3s
Cost:: $0.000702
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

Rain tapped mansion windows as Detective Hale arrived before dawn.  
Inside, the butler whispered, 'The victim vanished from locked rooms'.  
A crimson stain bloomed beneath the staircase, chilling everyone present.  
Hale examined a pocketwatch, stopped, then listened to ticking silence.  
Mrs. Larkin wept, insisting she heard singing at midnight clearly.  
Hale asked for keys, and found one missing entirely tonight.  
Somebody had killed, yet no doors showed forced entry anywhere.

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