<p>The live demo is currently down.</p>
<p>More information can be found in the following pages:</p>
<p><a href="https://nlp.stanford.edu/sentiment/" target="_blank">https://nlp.stanford.edu/sentiment/</a></p>
<p><a href="https://nlp.stanford.edu/sentiment/code.html" target="_blank">https://nlp.stanford.edu/sentiment/code.html</a></p>
<p>The current model is integrated into Stanford CoreNLP as of version 3.3.0 or later, which is still downloadable on the website.</p>
<p>&nbsp;</p>