HyperWrite is an AI writing assistant and Chrome browser agent from OthersideAI, for individual writers, with a free starter account and paid subscriptions.
HyperWrite helps people draft, rewrite and finish text wherever they type, and it can also take over repetitive tasks on websites. OthersideAI, Inc., a company in Melville, New York, builds and sells it, with no parent company above it. The problem it addresses is the blank page and the rework after it: a first draft, a clearer second version and the small edits in between. Long drafts live in the AI Document Editor, where a chat reads the whole document and suggests changes. A library of single-purpose tools covers narrower jobs, among them the AI Grammar Checker, the Text Rewriter, the AI Style Rewriter and the Friendly Tone Converter. The grammar tool works on pasted text and returns it corrected, rather than marking errors live during typing. TypeAhead, delivered through the Chrome extension, predicts the next words in Gmail, Notion and Google Docs, and the Tab key accepts a suggestion. Custom Personas give the AI a voice to write in, while the French Grammar Fixer and the AI Document Translator handle other languages. Students and researchers use it for academic writing, and Scholar AI searches peer-reviewed articles to support an essay or a paper. Marketers and professionals who write across many web apps in a day get the most from the extension, because the suggestions follow them from tab to tab. Buyers open a free starter account and move to a monthly or annual subscription once they need more AI messages, more personas and the more advanced models. Much of the work happens inside other apps rather than in a HyperWrite window. A marketer drafting a LinkedIn post gets suggestions in the post box, and a student polishes an essay in Google Docs without copying it anywhere. Longer pieces, such as a blog article or a report, move into the document editor, where the chat reviews structure across sections. When the task is not writing at all, such as comparing flight times, the browser agent clicks through the sites on the user's behalf. HyperWrite fits people whose writing day runs through Chrome tabs on a desktop computer.
Pricing
View plans-
Free
Free
- Free starter account
- Limited monthly credits on the basic AI; the allowance is not stated
- Basic features only; Premium adds more credits and more advanced AI
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Premium
$19.99 per month
$19.99 billed monthly; $16 a month billed annually ($192 a year)
- Code TRYHYPERWRITE takes 50% off the first month, then the full rate
- 250 AI messages a month; unlimited messages need Ultra
- Cited answers with real-time information
- 3 custom personas
- Hundreds of pre-made AI tools
- Unlimited TypeAheads with the Chrome extension
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Ultra
$44.99 per month
$44.99 billed monthly; $29 a month billed annually ($348 a year)
- Code TRYHYPERWRITE takes 50% off the first month, then the full rate
- Unlimited AI messages
- 10 custom personas
- First access to experimental writing and Agent features
- Unlimited TypeAheads with the Chrome extension
Features
- Included: Grammar and spelling correction
- Included: Tone and style adjustment
- Included: Sentence rewriting and paraphrasing
- Included: Long-form document drafting
- Included: Browser extension for writing anywhere
- Included: Microsoft Word and Google Docs add-in
- Not included: Custom style guide enforcement
- Not included: Built-in plagiarism check
- Included: Multilingual writing support
- Included: Inline autocomplete suggestions
- Not included: Readability scoring
- Not included: Snippet and template library
- Not included: Team glossary and terminology control
- Not included: Document version history
- Not included: Offline or on-device mode
- Not included: Writing analytics and usage reports
- Not included: Citation and reference generation
- Not included: Export to DOCX and PDF
Additional Features
- AI Document Editor with a chat that reads the whole draft
- Rewrite action inside the document editor
- TypeAhead suggestions accepted with the Tab key
- Chrome extension for Gmail, Notion and LinkedIn
- Google Docs suggestions through the Chrome extension
- AI Grammar Checker for pasted text
- Text Rewriter
- AI Style Rewriter
Best for
- Students and researchers writing papers in Google Docs
- Marketers drafting posts and emails across several web apps
- Individual writers who work mostly in Chrome on a desktop
- People who want an agent to handle routine browser tasks
- Writers who want the AI to keep a set voice through personas
- Heavy users who need unlimited AI messages
Use cases
- Drafting a blog post or report in a document editor
- Finishing emails in Gmail with inline suggestions
- Writing LinkedIn posts
- Rewriting a paragraph in a friendlier or more formal tone
- Correcting grammar in a pasted draft
- Fixing grammar in French text
- Translating a document into another language
- Finding peer-reviewed articles for an essay
- Polishing an academic paper in Google Docs
- Searching for flights with the browser agent
- Writing marketing copy
Screenshots & Videos
Explore HyperWrite in action
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