JSFiddle - React, Tailwind, and code Playground

HTML

<div id="redux-groups-accordion">
    <div class="redux-groups-accordion-group">
        <h3 class="ui-accordion-header">
            <span class="redux-groups-header">New Slide Title</span>
        </h3>
        <div class="ui-accordion-content">
            <input type="hidden" name="id" />
            <input type="text" name="title" />
            <input type="text" name="tags" />
        </div>
    </div>
    <div class="redux-groups-accordion-group">
        <h3 class="ui-accordion-header">
            <span class="redux-groups-header">New Slide Title</span>
        </h3>
        <div class="ui-accordion-content">
            <input type="hidden" name="id" />
            <input type="text" name="title" />
            <input type="text" name="tags" />
        </div>
    </div>
</div>

JavaScript

$('.redux-groups-accordion-group input[type=text]').on('keyup',function(event) {
     $(this).parents('.redux-groups-accordion-group:first').find('.redux-groups-header').text(event.target.value);
});