hyperwrite started as an ai autocomplete tool. you type a few words, it predicts the rest of the sentence. think gmail's smart compose but for everything.

they've expanded into a personal ai assistant with web browsing and task automation, but the writing core is still autocomplete-based.

the autocomplete approach

hyperwrite sits in your browser and suggests completions as you type. you start a sentence, it finishes it. you accept with tab, modify, or ignore.

this is convenient. it speeds up typing. for emails and casual writing, it's genuinely useful. you think less about phrasing and more about ideas.

the detection problem with autocomplete

here's the issue: autocomplete suggestions come from the same language models that produce detectable ai text. when you accept a suggestion, you're inserting ai-generated text into your document one sentence at a time.

a paragraph where you accepted most of the suggestions is functionally ai-generated. it'll have the same low perplexity and even rhythm as chatgpt output. the fact that you pressed tab instead of typing doesn't change the statistical properties.

and there's no rewriting step. what the autocomplete suggests is what goes in your document. no structural variation. no humanization.

paraai's approach

paraai separates generation from refinement.

cowrite generates drafts. quill suggests edits. but the key step is paraphrase — the tool that rewrites text using fine-tuned models trained on human-text corpora. this step adds the structural variation that makes text pass detectors.

hyperwrite has no equivalent step. there's no point in the workflow where the text gets rewritten to sound human. it comes out of the model and goes into your document.

who benefits from each

hyperwrite is good for people who type a lot of low-stakes text. emails, slack messages, quick notes. speed matters, detection doesn't.

paraai is for when the output needs to sound like you wrote it. papers, articles, client deliverables, anything that might get checked. the untraceable ai writing workflow requires a rewriting step that hyperwrite doesn't have.

can you use both?

technically yes. use hyperwrite for fast drafting, then paste the result into paraai's paraphrase. but at that point you're using hyperwrite as a glorified chatgpt and losing the inline convenience that's its main selling point.

better to just use paraai's cowrite for the draft and quill for the editing. same end result, one tool instead of two.