Run: 2026-07-09-01KX41FACF2RR5TX7ZXNXHM7X6

Run Details

Model:: GPT-5.6 Terra
Test:: N-Length Sentences
Scenario:: Write sentences with 20 words each
Duration:: 2.3s
Cost:: $0.001767
Provider:: OpenAI

Evaluation summary

Score	Evaluator	Details Link
37.09%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 20 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

At midnight, Detective Mara Venn arrived at Blackwater Hall, where rain stitched silver seams across the abandoned estate windows.  
The butler waited beneath the portico, pale and trembling, clutching a lantern that sputtered whenever thunder rolled overhead.  
“Sir Alistair is dead,” he whispered, leading Mara inside, “and everyone claims they heard nothing before the scream.”  
Inside, seven guests circled the dining room, silent beneath portraits whose painted eyes seemed fixed upon the locked door.

Evaluation details

Result

Evaluator

Details

Meta Data

37.09%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	19
1	18
2	18
3	19