The product
What the Perplexity tone analyzer does
GPTCleanup Pro's Perplexity tone analyzer reads a passage and reports how it positions itself toward its reader: a detached, neutral-summarizer register that reports what sources say rather than committing to a stance, and confidence carried by attribution rather than a direct claim. It answers a different question than a mechanics check does, not how is this sentence built, but how does this writing relate to the person reading it.
It's a server tool by necessity. The pattern model is too large to run locally, so text is sent to our AI server to be scored, and the result returns to the page. 5 free checks in any rolling 24 hours, no account required.
Tone and style are scored separately here, deliberately. Tone is a property of the relationship a passage establishes with its reader. Style is a property of how its sentences are constructed.