The AI Computer. Work alongside AI.

Free to start in your browser.

100,000+ users Backed by Y Combinator

Today’s computers were designed in 1984.One person, one pointer, one thing at a time.

1984

River is built for a future with AI.You and River, working side by side.

Take an idea all the way.

Say you’re launching a coffee subscription. River researches, writes, and builds alongside you.

Made with River.

Every piece started with a prompt.

  • Research the specialty coffee market, with sources.

    A specialty coffee market report in River Docs, scrolling from its findings to its sources.

    A market report

  • Turn our numbers into a launch deck.

    The Q4 launch deck in River Slides, moving from the title slide to the launch timeline.

    A presentation

  • Build a page where people can sign up.

    A Harbor Coffee launch page built with River, with a campaign image and subscription pricing.

    A website

  • Forecast November and December.

    The subscription growth sheet, with River’s forecasts for November and December.

    A forecast

  • Put launch week on the calendar.

    A week of Harbor Coffee launch meetings in River Calendar.

    A week, planned

  • Make a board showing who’s doing what.

    A Q4 launch board, opening a task River completed.

    A project plan

An illustrative coffee launch, made with River.

Everything works together.

All your apps, in one place.

River’s own apps, plus hundreds of web apps like Slack and Spotify.

A real browser.

River uses any website for you, and asks before it books or buys.

Bring your work with you.

Add your files. Connect Gmail, Slack, Notion, and more.

Explore connections

Across apps and files.

Ask once. River reads the sheet, builds the deck, and drafts the email.

The best AI, built in.

Leading models from Google, Anthropic, and OpenAI.

Your work stays yours.

Encrypted, private, and never used to train AI.

Better with your people.

Your team and River, working together in one space.

A few things to know.

What is an AI computer?

A computer built for working with AI. River has its own apps for documents, spreadsheets, presentations, and more, and you and River work on the same things together. Use it in your browser or download the desktop app.

Can I use my existing files and tools?

Yes. Upload your files and connect apps like Gmail, Slack, and Notion. The desktop app can also work with files on your computer and your own signed-in browser.

Am I in control?

Always. Edit anything yourself, and accept or reject River’s changes. River asks before it sends, publishes, or buys anything, unless you’ve already asked it to.

Is my work private?

Yes. Your work is encrypted in transit and at rest, and River never uses it to train AI.

What does River cost?

River is free to start. Paid plans add more AI usage and the most advanced models.

View pricing

What will you make together?

Bring an idea. See where it goes.