u/Worth-Discount-8391

I have an essay scoring app. I type in the topic and the essay.
App sends request and prompt to Sonar.
Sonar returns the evaluation and mistakes and suggestion for corrections and the score.
An 8 essay, after I fix just one mistake ( At nighttime -> At night,...) and submit again score for the same essay goes to 8.5 (which makes the whole evaluation process look untrustworthy)
Is this hallucination?
Thinking switching to Claude Haiku but worry about the cost.
Sonar also returns the citation and links which frequently breaks the JSON format.
Can somone kindly give some suggestions. I need something with evaluation accuracy, no app breaking bugs, and similar cost as Sonar.

From Facebook:

A former U.S. Army soldier convicted of rape, desertion and indecent assault was arrested in Spain nearly 30 years after fleeing his unit in Germany, ending one of the longest-running manhunts in U.S. Marshals history, the agency announced last week.

Jesse Bussey, who had been on the run since 1996, was arrested Nov. 10, 2025, in Málaga, Spain, where authorities said he was teaching English and living under an alias. He has been extradited to the U.S. Disciplinary Barracks at Fort Leavenworth, Kansas, where he begins his 16-year military prison sentence.

Bussey was convicted in absentia for rape, desertion and two counts of indecent assault. In addition to the imprisonment, he also received a reduction in grade to E-1 and dishonorable discharge.

He was last seen fueling his vehicle at a gas station on an Army base in Schweinfurt, Germany, before disappearing. Using a different identity, the Marshals said he joined the French Foreign Legion in late 1996 and served until early 2000

https://preview.redd.it/v8k9xkrbad8h1.jpg?width=1456&format=pjpg&auto=webp&s=27ae02ba437758b0d9b49acef982176d57aa389d